Şule Nur Metli, Mucahid Yildirim, E. A. Erdur, Ömer Erdur
Aim: The aim of this study was to determine the relationship between cephalometric transversal measurements and nasal patency before and after rapid maxillary expansion (RME) treatment applied to patients with maxillary transversal deficiency. Methodology: The records of 30 patients with maxillary transversal insufficiency and 20 patients without normal dentofacial and nasal symptoms were used. Acoustic rhinometry (MCA1, MCA2, VOL1, VOL2) and cephalometry measurements (JR–JL, MMTI, nasal width) were analyzed before (TO) and six months after (T1) RME. Results: There were no significant differences in age and gender between the groups. After the RME treatment of the patients in the study group, there was a significant increase in the cephalometric measurement (JL–JR, MMTI, nasal width) and acoustic rhinometry measurement parameters (MCA1, MCA2, VOL1, VOL2). Cephalometric measurements showed consistent changes in the patients in the study group, suggesting that RME treatment increased the maxilla’s growth capacity. The postero-anterior cephalometry results improved after RME treatment and approached those of the control group. Conclusion: Significant improvement was observed in the cephalometric transversal measurements after RME treatment. This improvement indicated that RME increases maxillary growth capacity. There was no correlation between cephalometric and acoustic rhinometry. This result may be due to the inability of postero-anterior cephalometry to effectively evaluate the maxilla-related part of the nasal structures. How to cite this article: Metli ŞN, Yıldırım M, Erdur EA, Erdur Ö. A comparison of transversal changes occurring in the treatment of rapid maxillary expansion with acoustic rhinometry. Int Dent Res 2022;12(Suppl.1):97-102. https://doi.org/10.5577/intdentres.434 Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.
目的:本研究的目的是确定快速上颌扩张(RME)治疗上颌横向缺损患者前后颅侧测量与鼻通畅的关系。方法:选取上颌横断功能不全患者30例，无正常牙面及鼻症状患者20例。声学鼻测量(MCA1, MCA2, VOL1, VOL2)和头测量(JR-JL, MMTI，鼻宽)在RME前(TO)和(T1)后6个月进行分析。结果:两组患者年龄、性别差异无统计学意义。研究组患者经RME治疗后，头侧测量(JL-JR、MMTI、鼻宽)和听鼻测量参数(MCA1、MCA2、VOL1、VOL2)均显著升高。头部测量显示研究组患者的变化一致，表明RME治疗增加了上颌骨的生长能力。RME治疗后脑前位测量结果改善，接近对照组。结论:RME治疗后头侧测量有明显改善。这种改善表明RME增加了上颌生长能力。头测与听鼻测量无相关性。这一结果可能是由于后前位测量术无法有效评估鼻结构中与上颌相关的部分。如何引用本文:Metli ŞN, Yıldırım M, Erdur EA, Erdur Ö。上颌快速扩张与声学鼻测量术治疗中发生的横向变化的比较。国际医学杂志，2012;12(增刊1):97-102。https://doi.org/10.5577/intdentres.434语言修改:本手稿中的英语已由至少两名专业编辑检查，他们都是英语母语者。
{"title":"A comparison of transversal changes occurring in the treatment of rapid maxillary expansion with acoustic rhinometry","authors":"Şule Nur Metli, Mucahid Yildirim, E. A. Erdur, Ömer Erdur","doi":"10.5577/intdentres.434","DOIUrl":"https://doi.org/10.5577/intdentres.434","url":null,"abstract":"Aim: The aim of this study was to determine the relationship between cephalometric transversal measurements and nasal patency before and after rapid maxillary expansion (RME) treatment applied to patients with maxillary transversal deficiency.\u0000Methodology: The records of 30 patients with maxillary transversal insufficiency and 20 patients without normal dentofacial and nasal symptoms were used. Acoustic rhinometry (MCA1, MCA2, VOL1, VOL2) and cephalometry measurements (JR–JL, MMTI, nasal width) were analyzed before (TO) and six months after (T1) RME.\u0000Results: There were no significant differences in age and gender between the groups. After the RME treatment of the patients in the study group, there was a significant increase in the cephalometric measurement (JL–JR, MMTI, nasal width) and acoustic rhinometry measurement parameters (MCA1, MCA2, VOL1, VOL2). Cephalometric measurements showed consistent changes in the patients in the study group, suggesting that RME treatment increased the maxilla’s growth capacity. The postero-anterior cephalometry results improved after RME treatment and approached those of the control group.\u0000Conclusion: Significant improvement was observed in the cephalometric transversal measurements after RME treatment. This improvement indicated that RME increases maxillary growth capacity. There was no correlation between cephalometric and acoustic rhinometry. This result may be due to the inability of postero-anterior cephalometry to effectively evaluate the maxilla-related part of the nasal structures.\u0000 \u0000How to cite this article: \u0000Metli ŞN, Yıldırım M, Erdur EA, Erdur Ö. A comparison of transversal changes occurring in the treatment of rapid maxillary expansion with acoustic rhinometry. Int Dent Res 2022;12(Suppl.1):97-102. https://doi.org/10.5577/intdentres.434\u0000 \u0000Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.","PeriodicalId":31322,"journal":{"name":"Journal of International Clinical Dental Research Organization","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77435326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Aim: The aim of this study is to determine the relationship between body mass index (BMI) and early childhood caries by using the decayed, missing, and filled teeth (DMFT) index in early childhood. Methodology: The sample of the study consisted of 133 children, 63 boys and 70 girls, aged 2–6 years, Dental scans of the children were performed by two experienced physicians in line with World Health Organization criteria, using mirrors and probes, in daylight. The DMFT index was employed to determine the number of DMFT. The height and weight of the children were measured and recorded with a digital scale and height ruler during the examination. BMI was calculated by dividing their body weight (kg) by the square of their height in meters. Results: There was no statistically significant difference between age groups according to gender (p > 0.05). When the DMFT index values according to the BMI classifications of the children participating in the study and the number of caries, missing, and filled teeth of four different groups (weak, normal, overweight, obese) were compared according to the BMI classification, a difference was observed between the groups. The DMFT indexes of the children who were evaluated as obese with an increasing BMI had higher results than those for the other groups (p < 0.05). Conclusion: More detailed and long-term studies are needed to determine the causal relationship between the variables examined when evaluating the relationship between dental caries and BMI, as well as to formulate appropriate interventions related to these variables. How to cite this article: Fidancıoğlu YD, Güneş M. Investigation of the relationship between body mass index and early childhood caries. Int Dent Res 2022;12(Suppl.1):65-8. https://doi.org/10.5577/intdentres.447 Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.
目的:本研究的目的是通过使用儿童早期蛀牙、缺牙和补牙(DMFT)指数来确定体重指数(BMI)与儿童早期龋病的关系。方法:研究样本包括133名儿童，其中63名男孩和70名女孩，年龄在2-6岁之间，由两名经验丰富的医生按照世界卫生组织的标准，在白天使用镜子和探针对儿童进行牙科扫描。采用DMFT指数来确定DMFT的数量。在检查过程中，用数字秤和身高尺测量和记录儿童的身高和体重。BMI是用体重(kg)除以身高(米)的平方来计算的。结果:不同性别年龄组间比较，差异无统计学意义(p > 0.05)。将参与研究的儿童按BMI分类的DMFT指数与按BMI分类的四组(弱组、正常组、超重组、肥胖组)的龋、缺牙、补牙数量进行比较，观察组间差异。BMI升高的肥胖组DMFT指数高于其他组(p < 0.05)。结论:在评估龋病与BMI的关系时，需要更详细和长期的研究来确定所检查的变量之间的因果关系，并制定与这些变量相关的适当干预措施。本文引用方式:Fidancıoğlu YD, g neim M.体重指数与幼儿龋齿关系的研究。国际医学杂志，2022;12(增刊1):65-8。https://doi.org/10.5577/intdentres.447语言修改:本手稿中的英语已由至少两名专业编辑检查，他们都是英语母语者。
{"title":"Investigation of the relationship between body mass index and early childhood caries","authors":"Yasemin Derya Fidancıoğlu, M. Güneş","doi":"10.5577/intdentres.447","DOIUrl":"https://doi.org/10.5577/intdentres.447","url":null,"abstract":"Aim: The aim of this study is to determine the relationship between body mass index (BMI) and early childhood caries by using the decayed, missing, and filled teeth (DMFT) index in early childhood.\u0000Methodology: The sample of the study consisted of 133 children, 63 boys and 70 girls, aged 2–6 years, Dental scans of the children were performed by two experienced physicians in line with World Health Organization criteria, using mirrors and probes, in daylight. The DMFT index was employed to determine the number of DMFT. The height and weight of the children were measured and recorded with a digital scale and height ruler during the examination. BMI was calculated by dividing their body weight (kg) by the square of their height in meters.\u0000Results: There was no statistically significant difference between age groups according to gender (p > 0.05). When the DMFT index values according to the BMI classifications of the children participating in the study and the number of caries, missing, and filled teeth of four different groups (weak, normal, overweight, obese) were compared according to the BMI classification, a difference was observed between the groups. The DMFT indexes of the children who were evaluated as obese with an increasing BMI had higher results than those for the other groups (p < 0.05).\u0000Conclusion: More detailed and long-term studies are needed to determine the causal relationship between the variables examined when evaluating the relationship between dental caries and BMI, as well as to formulate appropriate interventions related to these variables.\u0000 \u0000How to cite this article: \u0000Fidancıoğlu YD, Güneş M. Investigation of the relationship between body mass index and early childhood caries. Int Dent Res 2022;12(Suppl.1):65-8. https://doi.org/10.5577/intdentres.447\u0000 \u0000Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.","PeriodicalId":31322,"journal":{"name":"Journal of International Clinical Dental Research Organization","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84052338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tuba Yılmaz Savaş, A. Savaş, Ceyda Akın, A. Tunçdemir
Aim: The purpose of this study is to examine the effects of two different experimental acid solutions and sandblasting on the bond strength between zirconia ceramic core material and resin cement. Methodology: Forty zirconia core materials were prepared and separated into four groups based on the surface treatment to be applied (n = 10) as follows: 1) Control Group: no surface treatment was performed; 2) Sandblasting Group: the specimen surfaces were sandblasted with 50 µm aluminum oxide particles from a distance of 10 mm at 3 bar pressure for 15 seconds; 3) Sol-1 Group: H2O:HF:H2O2 solution was applied for 60 seconds, washed, and then dried; and 4) Sol-2 Group: H2O:HF:HNO3 solution was applied to the surfaces of the specimens for 60 seconds, washed, and then dried. All specimens were coated with a dual-cure resin cement with a 2.8-mm diameter. After 24 hours, the specimens were tested for shear bond strength (SBS) at 1 mm/min using a universal testing device. Statistical analysis was conducted using one-way analysis of variance (ANOVA) and Tukey HSD tests with a confidence interval of 95%. Results: The difference among the groups was statistically significant (p = 0.002) based on the one-way ANOVA results. The Control Group had the lowest SBS (8.06 ± 4.52), whereas the Sol-1 Group had the highest SBS (17.10 ± 5.67). The Sol-1 and Sol-2 Groups demonstrated comparable bonding strength values (p = 0.17). The Sandblasting and Sol-1 Groups exhibited considerably stronger bond strength than the Control Group (p = 0.05). Conclusion: The experimental acid solutions enhanced the bond strength between the resin cement and the zirconia ceramic at the sandblasting treatment level. How to cite this article: Yılmaz Savaş T, Savaş A, Akın C, Tunçdemir AR. Investigation of the effect of different experimental acid solutions applied on the zirconia surface on the bond strength between zirconia and resin cement: A pilot study. Int Dent Res 2022;12(Suppl.1):69-73. https://doi.org/10.5577/intdentres.458 Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.
{"title":"Investigation of the effect of different experimental acid solutions applied on the zirconia surface on the bond strength between zirconia and resin cement: A pilot study","authors":"Tuba Yılmaz Savaş, A. Savaş, Ceyda Akın, A. Tunçdemir","doi":"10.5577/intdentres.458","DOIUrl":"https://doi.org/10.5577/intdentres.458","url":null,"abstract":"Aim: The purpose of this study is to examine the effects of two different experimental acid solutions and sandblasting on the bond strength between zirconia ceramic core material and resin cement.\u0000Methodology: Forty zirconia core materials were prepared and separated into four groups based on the surface treatment to be applied (n = 10) as follows: 1) Control Group: no surface treatment was performed; 2) Sandblasting Group: the specimen surfaces were sandblasted with 50 µm aluminum oxide particles from a distance of 10 mm at 3 bar pressure for 15 seconds; 3) Sol-1 Group: H2O:HF:H2O2 solution was applied for 60 seconds, washed, and then dried; and 4) Sol-2 Group: H2O:HF:HNO3 solution was applied to the surfaces of the specimens for 60 seconds, washed, and then dried. All specimens were coated with a dual-cure resin cement with a 2.8-mm diameter. After 24 hours, the specimens were tested for shear bond strength (SBS) at 1 mm/min using a universal testing device. Statistical analysis was conducted using one-way analysis of variance (ANOVA) and Tukey HSD tests with a confidence interval of 95%.\u0000Results: The difference among the groups was statistically significant (p = 0.002) based on the one-way ANOVA results. The Control Group had the lowest SBS (8.06 ± 4.52), whereas the Sol-1 Group had the highest SBS (17.10 ± 5.67). The Sol-1 and Sol-2 Groups demonstrated comparable bonding strength values (p = 0.17). The Sandblasting and Sol-1 Groups exhibited considerably stronger bond strength than the Control Group (p = 0.05).\u0000Conclusion: The experimental acid solutions enhanced the bond strength between the resin cement and the zirconia ceramic at the sandblasting treatment level.\u0000 \u0000How to cite this article: \u0000Yılmaz Savaş T, Savaş A, Akın C, Tunçdemir AR. Investigation of the effect of different experimental acid solutions applied on the zirconia surface on the bond strength between zirconia and resin cement: A pilot study. Int Dent Res 2022;12(Suppl.1):69-73. https://doi.org/10.5577/intdentres.458\u0000 \u0000Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.","PeriodicalId":31322,"journal":{"name":"Journal of International Clinical Dental Research Organization","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77167050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-31DOI: 10.5577/intdentres.2022.vol12.no3.8
Ebru Akleyin, Yelda Polat, Elif Burcu Harman, S. Çelenk
Aim: This retrospective study aimed to evaluate the radiographic success of apexification treatments applied with different materials and techniques. Methodology: Periapical radiographs of 224 maxillary incisors in patients between 6 and 12 years of age who had undergone apexification treatment at the Dicle University, Faculty of Dentistry, Department of Pediatric Dentistry were retrospectively examined. Each apex was scored using the periapical index (PAI) on X-rays obtained at 12 months of follow-up after treatment, and the presence or absence of the apical barrier was evaluated. The Kruskal–Wallis H, Mann–Whitney U, and chi-square tests were used for the statistical analysis (p < 0.05). Results: In the maxillary incisors, apexification was most commonly performed on the maxillary right central teeth (74.11%). The cause for this treatment was trauma in 97.77% of the patients. Enlargement in the periodontal space (95.98%), the presence of lesions (60.71%), loss of lamina dura (54.46%), and external resorption (43.75%) were observed. At 12 months of follow-up after treatment, apical closure (87.95%) was observed in all teeth with open apexes, and the ratio of patients with a PAI of < 2 was 89.35% for calcium hydroxide (CH) apexification and 92.73% for mineral trioxide aggregate (MTA) apexification. Conclusion: The radiographic success of apexification treatments with CH and MTA was found to be high in 224 immature upper incisors. How to cite this article: Akleyin E, Polat Y, Harman EB, Çelenk S. Evaluating the radiographic results of apexification treatment in children. Int Dent Res 2022;12(3):158-64. https://doi.org/10.5577/intdentres.2022.vol12.no3.8 Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.
目的:本回顾性研究旨在评估采用不同材料和技术的根尖治疗的放射学成功率。方法:回顾性分析了224例6 ~ 12岁患者的上颌门牙尖周x线片，这些患者均在迪克尔大学牙科学院儿童牙科学系接受过尖尖矫正治疗。使用治疗后12个月随访x射线的根尖周指数(PAI)对每个根尖进行评分，并评估是否存在根尖屏障。采用Kruskal-Wallis H、Mann-Whitney U、卡方检验进行统计学分析(p < 0.05)。结果:上颌切牙中，上颌右中牙拔尖最多(74.11%)。97.77%的患者以创伤为治疗原因。牙周间隙增大(95.98%)、存在病变(60.71%)、硬膜缺失(54.46%)、外吸收(43.75%)。治疗后12个月随访时，所有开放尖牙根尖闭合(87.95%)，其中氢氧化钙(CH)尖尖矫正的PAI < 2的比例为89.35%，三氧化矿物骨料(MTA)尖尖矫正的PAI < 2的比例为92.73%。结论:在224例未成熟上切牙中应用CH和MTA根尖治疗的x线成功率较高。本文来源:Akleyin E, Polat Y, Harman EB， Çelenk S.儿童根尖治疗的影像学结果评价。国际医学杂志，2016;12(3):158-64。https://doi.org/10.5577/intdentres.2022.vol12.no3.8语言修改:本手稿中的英语已由至少两名专业编辑检查，他们都是英语母语者。
{"title":"Evaluating the radiographic results of apexification treatment in children","authors":"Ebru Akleyin, Yelda Polat, Elif Burcu Harman, S. Çelenk","doi":"10.5577/intdentres.2022.vol12.no3.8","DOIUrl":"https://doi.org/10.5577/intdentres.2022.vol12.no3.8","url":null,"abstract":"Aim: This retrospective study aimed to evaluate the radiographic success of apexification treatments applied with different materials and techniques.\u0000Methodology: Periapical radiographs of 224 maxillary incisors in patients between 6 and 12 years of age who had undergone apexification treatment at the Dicle University, Faculty of Dentistry, Department of Pediatric Dentistry were retrospectively examined. Each apex was scored using the periapical index (PAI) on X-rays obtained at 12 months of follow-up after treatment, and the presence or absence of the apical barrier was evaluated. The Kruskal–Wallis H, Mann–Whitney U, and chi-square tests were used for the statistical analysis (p < 0.05).\u0000Results: In the maxillary incisors, apexification was most commonly performed on the maxillary right central teeth (74.11%). The cause for this treatment was trauma in 97.77% of the patients. Enlargement in the periodontal space (95.98%), the presence of lesions (60.71%), loss of lamina dura (54.46%), and external resorption (43.75%) were observed. At 12 months of follow-up after treatment, apical closure (87.95%) was observed in all teeth with open apexes, and the ratio of patients with a PAI of < 2 was 89.35% for calcium hydroxide (CH) apexification and 92.73% for mineral trioxide aggregate (MTA) apexification.\u0000Conclusion: The radiographic success of apexification treatments with CH and MTA was found to be high in 224 immature upper incisors.\u0000 \u0000How to cite this article: \u0000Akleyin E, Polat Y, Harman EB, Çelenk S. Evaluating the radiographic results of apexification treatment in children. Int Dent Res 2022;12(3):158-64. https://doi.org/10.5577/intdentres.2022.vol12.no3.8\u0000 \u0000Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.","PeriodicalId":31322,"journal":{"name":"Journal of International Clinical Dental Research Organization","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72385599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-31DOI: 10.5577/intdentres.2022.vol12.no3.9
Gunce Ozan, M. Berkman
Aim: As the spectrum of composite materials expands in the dental market, it's becoming more challenging to differentiate the structural properties and to find suitable finishing-polishing (f-p) materials. The main goal is to evaluate the impact of one and multi-step f-p systems on the surface roughness (SR) of current composite materials. Methodology: In this study, nanohybrid bulk-fill (Filtek BulkFill Posterior [FBFP]), nanohybrid (Ceram.x One [CXO]), microhybrid (Filtek Z250 [FZ250]), and giomer bulk-fill (Beautifil Bulk Restorative [BBR]) composites were tested. After sample preparation and 24-h storage in 37 °C distilled water, each main group was assigned to one of two groups (n = 10): a one-step (One Gloss-PS) or a multi-step (Sof-Lex) f–p system. SR values (Ra, µm) were measured using a profilometer. Statistical analysis was done using Tukey HSD and ANOVA tests (p < 0.05). Results: FZ250 showed the highest Ra values, regardless of the f–p system used. CXO showed statistically significantly lower SR scores than FZ250 (p < 0.05). There were no significant differences among the Ra values of the one- or multi-step f–p systems for FBFP and FZ250. Both the material and f–p systems had a significant effect on the Ra values separately. Conclusion: FZ250 showed the highest Ra values, and composites polished with the multi-step f–p system exhibited slightly smoother surfaces than those polished with the one-step system. How to cite this article: Ozan G, Berkman M. Surface roughness evaluation of composite materials polished with one- or multi-step systems. Int Dent Res 2022;12(3):165-70. https://doi.org/10.5577/intdentres.2022.vol12.no3.9 Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.
{"title":"Surface roughness evaluation of composite materials polished with one- or multi-step systems","authors":"Gunce Ozan, M. Berkman","doi":"10.5577/intdentres.2022.vol12.no3.9","DOIUrl":"https://doi.org/10.5577/intdentres.2022.vol12.no3.9","url":null,"abstract":"Aim: As the spectrum of composite materials expands in the dental market, it's becoming more challenging to differentiate the structural properties and to find suitable finishing-polishing (f-p) materials. The main goal is to evaluate the impact of one and multi-step f-p systems on the surface roughness (SR) of current composite materials.\u0000Methodology: In this study, nanohybrid bulk-fill (Filtek BulkFill Posterior [FBFP]), nanohybrid (Ceram.x One [CXO]), microhybrid (Filtek Z250 [FZ250]), and giomer bulk-fill (Beautifil Bulk Restorative [BBR]) composites were tested. After sample preparation and 24-h storage in 37 °C distilled water, each main group was assigned to one of two groups (n = 10): a one-step (One Gloss-PS) or a multi-step (Sof-Lex) f–p system. SR values (Ra, µm) were measured using a profilometer. Statistical analysis was done using Tukey HSD and ANOVA tests (p < 0.05).\u0000Results: FZ250 showed the highest Ra values, regardless of the f–p system used. CXO showed statistically significantly lower SR scores than FZ250 (p < 0.05). There were no significant differences among the Ra values of the one- or multi-step f–p systems for FBFP and FZ250. Both the material and f–p systems had a significant effect on the Ra values separately.\u0000Conclusion: FZ250 showed the highest Ra values, and composites polished with the multi-step f–p system exhibited slightly smoother surfaces than those polished with the one-step system.\u0000 \u0000How to cite this article: \u0000Ozan G, Berkman M. Surface roughness evaluation of composite materials polished with one- or multi-step systems. Int Dent Res 2022;12(3):165-70. https://doi.org/10.5577/intdentres.2022.vol12.no3.9\u0000 \u0000Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.","PeriodicalId":31322,"journal":{"name":"Journal of International Clinical Dental Research Organization","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78748930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mucahid Yildirim, E. A. Erdur, Ömer Erdur, Şule Nur Metli
Aim: Rapid maxillary expansion (RME) provides an orthopedic effect that solves the problem of transverse deficiency of the maxilla. Moreover, it contributes positively to the functioning of the entire nasopharynx by increasing the cross-sectional area and volume of the nasal tract, thus reducing airway resistance. The aim of this study was to evaluate the changes in olfactory threshold after RME treatment of patients with maxillary transverse deficiency. Methodology: Olfactory threshold and identification tests as well as acoustic rhinometry parameter (Volume1, MCA1, Volume2, MCA2) measurements were conducted for 40 patients (11–16 years) before treatment (T0) and 6 months after (T1) rapid maxillary expansion application. Results: A significant improvement was observed when the olfactory threshold values at T0 (0.96 ± 0.07) and T1 (0.79 ± 0.13) (p < 0.001) were compared. A significant improvement was also observed upon comparing the identification test results at T0 (0.63 ± 0.13) and T1 (0.79 ± 0.11) (p < 0.001). The acoustic rhinometry results showed a significant increase in Volume 1, MCA1, Volume 2 and MCA2 in the right and left nasal cavities after treatment (p < 0.001). Conclusion: In this study, acoustic rhinometry showed that nasal cavity area and volume increased in patients who underwent rapid maxillary expansion therapy. Further, the olfactory functions measured by the olfactory threshold test and identification test improved significantly. How to cite this article: Yıldırım M, Erdur EA, Erdur Ö, Metli ŞN. Evaluation of olfactory threshold changes in patients treated with rapid maxillary expansion. Int Dent Res 2022;12(Suppl.1):90-6. https://doi.org/10.5577/intdentres.435 Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.
{"title":"Evaluation of olfactory threshold changes in patients treated with rapid maxillary expansion","authors":"Mucahid Yildirim, E. A. Erdur, Ömer Erdur, Şule Nur Metli","doi":"10.5577/intdentres.435","DOIUrl":"https://doi.org/10.5577/intdentres.435","url":null,"abstract":"Aim: Rapid maxillary expansion (RME) provides an orthopedic effect that solves the problem of transverse deficiency of the maxilla. Moreover, it contributes positively to the functioning of the entire nasopharynx by increasing the cross-sectional area and volume of the nasal tract, thus reducing airway resistance. The aim of this study was to evaluate the changes in olfactory threshold after RME treatment of patients with maxillary transverse deficiency.\u0000Methodology: Olfactory threshold and identification tests as well as acoustic rhinometry parameter (Volume1, MCA1, Volume2, MCA2) measurements were conducted for 40 patients (11–16 years) before treatment (T0) and 6 months after (T1) rapid maxillary expansion application.\u0000Results: A significant improvement was observed when the olfactory threshold values at T0 (0.96 ± 0.07) and T1 (0.79 ± 0.13) (p < 0.001) were compared. A significant improvement was also observed upon comparing the identification test results at T0 (0.63 ± 0.13) and T1 (0.79 ± 0.11) (p < 0.001). The acoustic rhinometry results showed a significant increase in Volume 1, MCA1, Volume 2 and MCA2 in the right and left nasal cavities after treatment (p < 0.001).\u0000Conclusion: In this study, acoustic rhinometry showed that nasal cavity area and volume increased in patients who underwent rapid maxillary expansion therapy. Further, the olfactory functions measured by the olfactory threshold test and identification test improved significantly. \u0000 \u0000How to cite this article: \u0000Yıldırım M, Erdur EA, Erdur Ö, Metli ŞN. Evaluation of olfactory threshold changes in patients treated with rapid maxillary expansion. Int Dent Res 2022;12(Suppl.1):90-6. https://doi.org/10.5577/intdentres.435\u0000 \u0000Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.","PeriodicalId":31322,"journal":{"name":"Journal of International Clinical Dental Research Organization","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82914049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hakan Yasin Gönder, Mucahid Yildirim, Şule Nur Metli
Aim: The development of new caries lesions in patients undergoing orthodontic treatment is an undesirable side effect of treatment that arises because the fixed appliance tends to accumulate plaque. The aim of this study was to examine the white spot lesions (WSL), caries incidence, and decayed, missing, and filled teeth (DMFT) indices in patients with fixed orthodontic treatments. Methodology: The records of 150 patients treated at Necmettin Erbakan University Department of Orthodontics between 2018 and 2022 who met the study selection criteria were examined. Traditional methods and 2D color photographs were used to detect cavities. Pretreatment (T0) and post-treatment (T1) recordings were made. Results: Overall, 118 patients (78.6%) developed at least 1 new WSL during treatment and 49 patients (32.6%) developed active caries lesions. Increases in WSL, caries incidence, and the DMFT index were important during the treatment process. The length of treatment and the number of oral hygiene warnings were significantly associated with the development of new lesions. Conclusion: Individuals undergoing fixed orthodontic treatment have a significant incidence of WSLs and caries lesions. Patients and physicians should pay strict attention to this problem to effectively prevent caries occurrence during treatment. How to cite this article: Gönder HY, Yıldırım M, Metli ŞN. Incidence of white spot lesions and DMFT among patients treated with comprehensive orthodontics. Int Dent Res 2022;12(Suppl.1):85-9. https://doi.org/10.5577/intdentres.432 Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.
目的:在接受正畸治疗的患者中出现新的龋齿病变是治疗的不良副作用，因为固定矫治器容易积聚牙菌斑。本研究的目的是研究固定正畸治疗患者的白斑病变(WSL)、龋齿发生率和龋缺补牙(DMFT)指数。方法:分析2018 - 2022年在Necmettin Erbakan大学正畸科治疗的150例符合研究选择标准的患者的记录。采用传统方法和二维彩色照片检测龋洞。分别作预处理(T0)和处理后(T1)记录。结果:总体而言，118例患者(78.6%)在治疗期间出现至少1个新的WSL, 49例患者(32.6%)出现活动性龋损。在治疗过程中，WSL、龋发病率和DMFT指数的增加是重要的。治疗时间和口腔卫生警告的次数与新病变的发展显著相关。结论:接受固定正畸治疗的个体有明显的牙齿缺陷和龋病发生率。在治疗过程中，患者和医生应高度重视这一问题，以有效预防龋齿的发生。如何引用本文:Gönder HY, Yıldırım M, meti ŞN。综合正畸治疗患者白斑病变和DMFT的发生率。国际医学杂志，2022;12(增刊1):85-9。https://doi.org/10.5577/intdentres.432语言修改:本手稿中的英语已由至少两名专业编辑检查，他们都是英语母语者。
{"title":"Incidence of white spot lesions and DMFT among patients treated with comprehensive orthodontics","authors":"Hakan Yasin Gönder, Mucahid Yildirim, Şule Nur Metli","doi":"10.5577/intdentres.432","DOIUrl":"https://doi.org/10.5577/intdentres.432","url":null,"abstract":"Aim: The development of new caries lesions in patients undergoing orthodontic treatment is an undesirable side effect of treatment that arises because the fixed appliance tends to accumulate plaque. The aim of this study was to examine the white spot lesions (WSL), caries incidence, and decayed, missing, and filled teeth (DMFT) indices in patients with fixed orthodontic treatments.\u0000Methodology: The records of 150 patients treated at Necmettin Erbakan University Department of Orthodontics between 2018 and 2022 who met the study selection criteria were examined. Traditional methods and 2D color photographs were used to detect cavities. Pretreatment (T0) and post-treatment (T1) recordings were made.\u0000Results: Overall, 118 patients (78.6%) developed at least 1 new WSL during treatment and 49 patients (32.6%) developed active caries lesions. Increases in WSL, caries incidence, and the DMFT index were important during the treatment process. The length of treatment and the number of oral hygiene warnings were significantly associated with the development of new lesions.\u0000Conclusion: Individuals undergoing fixed orthodontic treatment have a significant incidence of WSLs and caries lesions. Patients and physicians should pay strict attention to this problem to effectively prevent caries occurrence during treatment.\u0000 \u0000How to cite this article: \u0000Gönder HY, Yıldırım M, Metli ŞN. Incidence of white spot lesions and DMFT among patients treated with comprehensive orthodontics. Int Dent Res 2022;12(Suppl.1):85-9. https://doi.org/10.5577/intdentres.432\u0000 \u0000Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.","PeriodicalId":31322,"journal":{"name":"Journal of International Clinical Dental Research Organization","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80823013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Aim: The aim of this study is to investigate the effects of green tea and rosehip tea, on the color stability of nanohybrid and bulk-fill composite resins. Methodology: A total of 60 disc-shaped samples were made from two types of A2 resin with nanohybrid (Tetric N Ceram, Ivoclar Vivadent, Schaan, Liechtenstein) and bulk-fill (Filtek Bulk-Fill, 3M ESPE, MN, USA) structure with the help of 10 mm diameter and 2 mm thick Teflon molds in this study. All samples were finished and polished with 4-stage (thick, medium, fine, superfine) polishing discs (Sof-lex, 3M ESPE, MN, USA) and kept in an oven at 37 °C for 24 hours. The samples, whose initial color measurements were made by spectrophotometer, were divided into subgroups for the control group and two different herbal teas (Green tea, Rosehip) (n=10). Color measurements were repeated, and ΔE values were calculated. Wilcoxon, Kruskal-Wallis, and Bonferroni tests were used to analyze the data (p < 0.05). Results: There was no statistically significant difference in color change between the composite resins (p > 0.05). No significant color change was found for either the Tetric N-Ceram or Filtek Bulk-Fill composite resin samples immersed in distilled water (p > 0.05, ΔE<3.3). Conclusion: Rosehip and green tea affect the color stability of composite resin restorations. Whereas the color change caused by green tea is at a clinically acceptable level, that stemming from rosehip tea falls within clinically unacceptable levels. How to cite this article: Tunçdemir MT, Dereli Z, Bahar A. The effect of different herbal teas on the color stability of nanohybrid and bulk-fill composites. Int Dent Res 2022;12(Suppl.1):103-7. https://doi.org/10.5577/intdentres.445 Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.
{"title":"The effect of different herbal teas on the color stability of nanohybrid and bulk-fill composites","authors":"M. Tunçdemir, Z. Dereli, Ayşenur Bahar","doi":"10.5577/intdentres.445","DOIUrl":"https://doi.org/10.5577/intdentres.445","url":null,"abstract":"Aim: The aim of this study is to investigate the effects of green tea and rosehip tea, on the color stability of nanohybrid and bulk-fill composite resins.\u0000Methodology: A total of 60 disc-shaped samples were made from two types of A2 resin with nanohybrid (Tetric N Ceram, Ivoclar Vivadent, Schaan, Liechtenstein) and bulk-fill (Filtek Bulk-Fill, 3M ESPE, MN, USA) structure with the help of 10 mm diameter and 2 mm thick Teflon molds in this study. All samples were finished and polished with 4-stage (thick, medium, fine, superfine) polishing discs (Sof-lex, 3M ESPE, MN, USA) and kept in an oven at 37 °C for 24 hours. The samples, whose initial color measurements were made by spectrophotometer, were divided into subgroups for the control group and two different herbal teas (Green tea, Rosehip) (n=10). Color measurements were repeated, and ΔE values were calculated. Wilcoxon, Kruskal-Wallis, and Bonferroni tests were used to analyze the data (p < 0.05).\u0000Results: There was no statistically significant difference in color change between the composite resins (p > 0.05). No significant color change was found for either the Tetric N-Ceram or Filtek Bulk-Fill composite resin samples immersed in distilled water (p > 0.05, ΔE<3.3).\u0000Conclusion: Rosehip and green tea affect the color stability of composite resin restorations. Whereas the color change caused by green tea is at a clinically acceptable level, that stemming from rosehip tea falls within clinically unacceptable levels.\u0000 \u0000How to cite this article: \u0000Tunçdemir MT, Dereli Z, Bahar A. The effect of different herbal teas on the color stability of nanohybrid and bulk-fill composites. Int Dent Res 2022;12(Suppl.1):103-7. https://doi.org/10.5577/intdentres.445\u0000 \u0000Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.","PeriodicalId":31322,"journal":{"name":"Journal of International Clinical Dental Research Organization","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83547815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-31DOI: 10.5577/intdentres.2022.vol12.no3.7
İ. Kavut, Mehmet Uğur, Özgür Ozan Tanrıkut
Aim: The purpose of this study was to evaluate the effects of different polishing methods on the surface roughness of temporary prosthetic restorations. Methodology: In this study, 200 specimens were obtained from Structur 2, Imident, FSM Duo CAD, and Han Temp Crown. All specimens were sanded with 400-, 800-, and 1000-grit silicon carbide. Next, the specimens were divided into five subgroups (n = 10). The specimens in first group were sanded with 1200-, 1600-, and 2000-grit silicon carbide sandpaper. The second group was polished with an aluminum oxide-containing disc. The third group was polished with a diamond-containing pad. A glaze bond was applied to the specimens in the fourth group. The fifth group was glazed with a coat of nano-filled resin. Then, the surface roughness of all specimens was measured with a profilometer. A two-way ANOVA test was performed using SPSS 20.0. Finally, the microstructures of the surfaces were examined by a scanning electron microscope at 5000× magnification. Results: Statistically significant results were obtained between the temporary materials and polishing methods in terms of surface roughness (p < 0.05). For the polishing method, the highest surface roughness values were observed in the control group (0.50 ± 0.15). The lowest surface roughness values were observed in the Equia Forte GC coat group (0.25 ± 0.10). Among the temporary crown materials, the highest roughness was observed in Imicryl specimens. (0.45 ± 0.17), while the least roughness was the polymethyl-methacrylate (PMMA) specimens (0.17 ± 0.10). Conclusion: Surface polishing and finishing procedures might positively affect the surface roughness of temporary materials. Furthermore, materials made via computer-aided design and computer-aided manufacturing (CAD-CAM) demonstrate structural advantages and may be preferable. How to cite this article: How to cite this article: Kavut İ, Uğur M, Tanrıkut ÖO. Effect of polishing methods on the surface roughness of different temporary restorative materials. Int Dent Res 2022;12(3):149-57. https://doi.org/10.5577/intdentres.2022.vol12.no3.7 Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.
目的:研究不同抛光方法对临时修复体表面粗糙度的影响。方法:在本研究中，从struct2, Imident, FSM Duo CAD和Han Temp冠中获得200个标本。所有的样品都用400、800和1000粒度的碳化硅打磨。接下来，将标本分为5个亚组(n = 10)。第一组试样分别用1200、1600、2000粒碳化硅砂纸进行打磨。第二组用含氧化铝的圆盘抛光。第三组用含钻石的衬垫抛光。在第四组标本上应用釉粘接。第五组被涂上了一层纳米填充树脂。然后，用轮廓仪测量所有试样的表面粗糙度。采用SPSS 20.0进行双因素方差分析。最后，用扫描电子显微镜在5000倍放大镜下观察表面的微观结构。结果:临时材料与抛光方法的表面粗糙度差异有统计学意义(p < 0.05)。抛光组的表面粗糙度值最高(0.50±0.15)。Equia Forte GC涂层组的表面粗糙度值最低(0.25±0.10)。在临时冠材料中，Imicryl材料的粗糙度最高。(0.45±0.17)，聚甲基丙烯酸甲酯(PMMA)的粗糙度最小(0.17±0.10)。结论:表面抛光处理对临时材料的表面粗糙度有积极影响。此外，通过计算机辅助设计和计算机辅助制造(CAD-CAM)制造的材料显示出结构上的优势，可能是更可取的。如何引用本文:如何引用本文:Kavut İ， Uğur M, Tanrıkut ÖO。抛光方法对不同临时修复材料表面粗糙度的影响。国际医学杂志，2016;12(3):149-57。https://doi.org/10.5577/intdentres.2022.vol12.no3.7语言修改:本手稿中的英语已由至少两名专业编辑检查，他们都是英语母语者。
{"title":"Effect of polishing methods on the surface roughness of different temporary restorative materials","authors":"İ. Kavut, Mehmet Uğur, Özgür Ozan Tanrıkut","doi":"10.5577/intdentres.2022.vol12.no3.7","DOIUrl":"https://doi.org/10.5577/intdentres.2022.vol12.no3.7","url":null,"abstract":"Aim: The purpose of this study was to evaluate the effects of different polishing methods on the surface roughness of temporary prosthetic restorations.\u0000Methodology: In this study, 200 specimens were obtained from Structur 2, Imident, FSM Duo CAD, and Han Temp Crown. All specimens were sanded with 400-, 800-, and 1000-grit silicon carbide. Next, the specimens were divided into five subgroups (n = 10). The specimens in first group were sanded with 1200-, 1600-, and 2000-grit silicon carbide sandpaper. The second group was polished with an aluminum oxide-containing disc. The third group was polished with a diamond-containing pad. A glaze bond was applied to the specimens in the fourth group. The fifth group was glazed with a coat of nano-filled resin. Then, the surface roughness of all specimens was measured with a profilometer. A two-way ANOVA test was performed using SPSS 20.0. Finally, the microstructures of the surfaces were examined by a scanning electron microscope at 5000× magnification.\u0000Results: Statistically significant results were obtained between the temporary materials and polishing methods in terms of surface roughness (p < 0.05). For the polishing method, the highest surface roughness values were observed in the control group (0.50 ± 0.15). The lowest surface roughness values were observed in the Equia Forte GC coat group (0.25 ± 0.10). Among the temporary crown materials, the highest roughness was observed in Imicryl specimens. (0.45 ± 0.17), while the least roughness was the polymethyl-methacrylate (PMMA) specimens (0.17 ± 0.10).\u0000Conclusion: Surface polishing and finishing procedures might positively affect the surface roughness of temporary materials. Furthermore, materials made via computer-aided design and computer-aided manufacturing (CAD-CAM) demonstrate structural advantages and may be preferable.\u0000 \u0000How to cite this article: \u0000How to cite this article: Kavut İ, Uğur M, Tanrıkut ÖO. Effect of polishing methods on the surface roughness of different temporary restorative materials. Int Dent Res 2022;12(3):149-57. https://doi.org/10.5577/intdentres.2022.vol12.no3.7\u0000 \u0000Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.\u0000 ","PeriodicalId":31322,"journal":{"name":"Journal of International Clinical Dental Research Organization","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75690316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Aim: This study aimed to assess the impact of the type and thickness of the ceramic and cement color on the targeted shade of glass-ceramics with various chemical compositions. Methodology: Thirty ceramic specimens were prepared from leucite-reinforced (GC Initial LRF, GC Group) and lithium-disilicate (IPS e.max CAD, EM Group) materials in three different thicknesses (0.5 mm, 0.7 mm, and 1 mm). Four 4-mm-thick substrates were then made from A3-shaded composite resin material to mimic tooth structure and be utilized for cement application. Four shades (Variolink II: transparent, white, yellow, and bleach) of 0.2-mm-thick resin cement were polymerized over these substrates. Next, the specimens were placed over these substrates, and color measurements were applied with a spectrophotometer (VITA Easyshade V) leading to 24 group combinations (n=5). The color difference (∆E) readings were obtained in the spectrophotometer's reference shade verification mode by selecting the A2 shade standard. Three-way mixed ANOVA, Tukey HSD, and Bonferroni tests were used for statistical analysis (α=0.05). Results: The main effects of material, cement, and thickness were found to be statistically significant (p < 0.05), as were the interactions of cement×material, cement×thickness, and material×thickness (p < 0.05). However, the material×cement×thickness interaction was not found to be statistically significant (p = 0.568). Regardless of thickness or cement shade, the GC group had a lower mean ∆E value than that of the EM group (p < 0.05). Lower ∆E values were achieved in both materials with a thickness of 1 mm and bleach-shaded cement (p < 0.05). The materials with the greatest mean ∆E values were those with the thickness of 0.5 mm and the transparent shade cement combination (p < 0.05). Conclusion: The thickness and shade of the cement used influenced the final color of the glass-ceramic materials with the same shade and translucency but diverse chemical compositions. When compared to the lithium disilicate glass-ceramic material, the leucite-reinforced feldspathic glass-ceramic material displayed lower color difference values and a better color match with the targeted shade. How to cite this article: Yılmaz Savaş T. The effect of thickness and cement shade on the color match of different CAD-CAM glass-ceramic materials. Int Dent Res 2022;12(Suppl.1):108-13. https://doi.org/10.5577/intdentres.457 Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.
{"title":"The effect of thickness and cement shade on the color match of different CAD-CAM glass-ceramic materials","authors":"Tuba Yılmaz Savaş","doi":"10.5577/intdentres.457","DOIUrl":"https://doi.org/10.5577/intdentres.457","url":null,"abstract":"Aim: This study aimed to assess the impact of the type and thickness of the ceramic and cement color on the targeted shade of glass-ceramics with various chemical compositions.\u0000Methodology: Thirty ceramic specimens were prepared from leucite-reinforced (GC Initial LRF, GC Group) and lithium-disilicate (IPS e.max CAD, EM Group) materials in three different thicknesses (0.5 mm, 0.7 mm, and 1 mm). Four 4-mm-thick substrates were then made from A3-shaded composite resin material to mimic tooth structure and be utilized for cement application. Four shades (Variolink II: transparent, white, yellow, and bleach) of 0.2-mm-thick resin cement were polymerized over these substrates. Next, the specimens were placed over these substrates, and color measurements were applied with a spectrophotometer (VITA Easyshade V) leading to 24 group combinations (n=5). The color difference (∆E) readings were obtained in the spectrophotometer's reference shade verification mode by selecting the A2 shade standard. Three-way mixed ANOVA, Tukey HSD, and Bonferroni tests were used for statistical analysis (α=0.05).\u0000Results: The main effects of material, cement, and thickness were found to be statistically significant (p < 0.05), as were the interactions of cement×material, cement×thickness, and material×thickness (p < 0.05). However, the material×cement×thickness interaction was not found to be statistically significant (p = 0.568). Regardless of thickness or cement shade, the GC group had a lower mean ∆E value than that of the EM group (p < 0.05). Lower ∆E values were achieved in both materials with a thickness of 1 mm and bleach-shaded cement (p < 0.05). The materials with the greatest mean ∆E values were those with the thickness of 0.5 mm and the transparent shade cement combination (p < 0.05).\u0000Conclusion: The thickness and shade of the cement used influenced the final color of the glass-ceramic materials with the same shade and translucency but diverse chemical compositions. When compared to the lithium disilicate glass-ceramic material, the leucite-reinforced feldspathic glass-ceramic material displayed lower color difference values and a better color match with the targeted shade.\u0000 \u0000How to cite this article: \u0000Yılmaz Savaş T. The effect of thickness and cement shade on the color match of different CAD-CAM glass-ceramic materials. Int Dent Res 2022;12(Suppl.1):108-13. https://doi.org/10.5577/intdentres.457\u0000 \u0000Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.\u0000 ","PeriodicalId":31322,"journal":{"name":"Journal of International Clinical Dental Research Organization","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79932852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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