Pub Date : 2023-11-30DOI: 10.1922/EJPRD_1530Pucciarelli09
M G R Pucciarelli, G H L Toyoshima, K H Neppelenbroek, C Sforza, T M Oliveira, S Soares
Quantifying in edentulous patients the facial collapse and whether complete conventional denture (CCD) and implant-supported fixed complete denture (ISFCD) can restore the facial proportions to match those of a dentate patient (CG) is relevant for clinical dentists. One hundred and four participants were enrolled and divided into edentulous (n=56) and CG (n=48). The edentulous participants were rehabilitated with CCD (n=28) or ISFCD (n=28) in both arches. Anthropometric landmarks in the face were marked and captured by stereophotogrammetry. Linear, angular, and surface measurements were analyzed and compared among groups. The statistical analysis was performed by an independent t-test, the one-way ANOVA, and Tukey's test. The significance level was set at 0.05. The facial collapse was quantified as a significant shortening of the lower third of the face affecting facial aesthetics in all parameters evaluated and the same was observed in comparison among CCD, ISFCD, and CG. The CCD presented statistical differences with the CG group in the lower third of the face and labial surface, and the ISFCD showed no statistical differences with the CG and CCD. The facial collapse in edentulous patients could be restored through oral rehabilitation with an ISFCD similar to those of dentate patients.
{"title":"A Stereophotogrammetry Face Study Between Dentate and Edentulous Adults Rehabilitated with Either a Conventional Complete or an Implant-Supported Fixed Complete Denture.","authors":"M G R Pucciarelli, G H L Toyoshima, K H Neppelenbroek, C Sforza, T M Oliveira, S Soares","doi":"10.1922/EJPRD_1530Pucciarelli09","DOIUrl":"10.1922/EJPRD_1530Pucciarelli09","url":null,"abstract":"<p><p>Quantifying in edentulous patients the facial collapse and whether complete conventional denture (CCD) and implant-supported fixed complete denture (ISFCD) can restore the facial proportions to match those of a dentate patient (CG) is relevant for clinical dentists. One hundred and four participants were enrolled and divided into edentulous (n=56) and CG (n=48). The edentulous participants were rehabilitated with CCD (n=28) or ISFCD (n=28) in both arches. Anthropometric landmarks in the face were marked and captured by stereophotogrammetry. Linear, angular, and surface measurements were analyzed and compared among groups. The statistical analysis was performed by an independent t-test, the one-way ANOVA, and Tukey's test. The significance level was set at 0.05. The facial collapse was quantified as a significant shortening of the lower third of the face affecting facial aesthetics in all parameters evaluated and the same was observed in comparison among CCD, ISFCD, and CG. The CCD presented statistical differences with the CG group in the lower third of the face and labial surface, and the ISFCD showed no statistical differences with the CG and CCD. The facial collapse in edentulous patients could be restored through oral rehabilitation with an ISFCD similar to those of dentate patients.</p>","PeriodicalId":45686,"journal":{"name":"European Journal of Prosthodontics and Restorative Dentistry","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9696480","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 : 2023-09-11DOI: 10.1922/EJPRD_2582Hjerppe25
J Hjerppe, F M Rus, J Pitta, S von Felten, M Özcan, G Pradíes
Introduction: The aim of this systematic review was to assess the literature reporting on the failure rates, survival rates and complication rates and patient reported outcome measures (PROMs) of anterior full (FC) or partial (PC) coverage single tooth restorations after a mean observation period of at least 3 years.
Methods: Systematic search was conducted using the electronic databases: MEDLINE, EMBASE and Cochrane library. Data regarding survival (restoration failure) and complication rates and PROMs were extracted and presented descriptively.
Results: Altogether 42 studies were included in the analysis (28 with FC, 12 with PC and 2 with both types of restorations). For FC restorations the estimated annual failure rate was 0.72 (95%CI: 0.33-1.57), resulting in a 5-year survival rate of 96.4% (95%CI: 92.4-98.3). For PC restorations, the estimated annual failure rate was 0.62 (95%CI: 0.27-1.46), resulting in a 5-year survival rate of 96.9% (95%CI: 93.0-98.7). There was no significant difference between the groups regarding survival or technical complications, while significantly fewer biological complications were observed with PC compared to FC restorations (test for subgroup differences, p=0.01).
Conclusions: FC and PC restorations showed high 5-year survival rates but the teeth restored with FC restorations may be more prone to biological complications.
{"title":"EPA Consensus Project Paper: Anterior Full or Partial Coverage Single Tooth Restorations - A Systematic Review of Survival and Complication Rates.","authors":"J Hjerppe, F M Rus, J Pitta, S von Felten, M Özcan, G Pradíes","doi":"10.1922/EJPRD_2582Hjerppe25","DOIUrl":"https://doi.org/10.1922/EJPRD_2582Hjerppe25","url":null,"abstract":"<p><strong>Introduction: </strong>The aim of this systematic review was to assess the literature reporting on the failure rates, survival rates and complication rates and patient reported outcome measures (PROMs) of anterior full (FC) or partial (PC) coverage single tooth restorations after a mean observation period of at least 3 years.</p><p><strong>Methods: </strong>Systematic search was conducted using the electronic databases: MEDLINE, EMBASE and Cochrane library. Data regarding survival (restoration failure) and complication rates and PROMs were extracted and presented descriptively.</p><p><strong>Results: </strong>Altogether 42 studies were included in the analysis (28 with FC, 12 with PC and 2 with both types of restorations). For FC restorations the estimated annual failure rate was 0.72 (95%CI: 0.33-1.57), resulting in a 5-year survival rate of 96.4% (95%CI: 92.4-98.3). For PC restorations, the estimated annual failure rate was 0.62 (95%CI: 0.27-1.46), resulting in a 5-year survival rate of 96.9% (95%CI: 93.0-98.7). There was no significant difference between the groups regarding survival or technical complications, while significantly fewer biological complications were observed with PC compared to FC restorations (test for subgroup differences, p=0.01).</p><p><strong>Conclusions: </strong>FC and PC restorations showed high 5-year survival rates but the teeth restored with FC restorations may be more prone to biological complications.</p>","PeriodicalId":45686,"journal":{"name":"European Journal of Prosthodontics and Restorative Dentistry","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10194410","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 : 2023-08-31DOI: 10.1922/EJPRD_2508Alfahed12
B A Alfahed, A S Alayad
Objective: To evaluate the translucency and color difference of the individual layers of two multi-layered zirconia materials at different sintering temperatures and to compare them with lithium disilicate.
Methods: Multi-layered zirconia systems with four distinct layers were selected for this study: DD cube ONE ML (4Y-TZP), DD cubeX2 ML (5Y-TZP); and compared with IPS e.max CAD HT (LS2). Plate-shaped A2-shade specimens were obtained from LS2 and individual layers of both zirconia materials. Individual layers were then divided equally into three different sintering temperatures:1300°C, 1450°C, and 1600°C. The TP and ΔE were determined by a spectrophotometer. SEM images were taken. Data was analyzed using SPSS 24.0 software with a p-value ⟨0.05.
Results: A significant difference was found in TP and ΔE values amongst all types of ceramic materials. Different sintering temperatures yielded distinct TP and ΔE values when both zirconia materials were tested and compared with LS2. Finally, TP and ΔE values were different amongst the zirconia layers.
Conclusion: Sintering temperature, type of ceramic material and different zirconia layers significantly affected the optical properties.
Clinical significance: Multi-layered zirconia materials possess a unique gradient effect that could efficiently enhance the esthetics of monolithic zirconia restorations. However, the sintering condition should be optimized.
目的:评价两种多层氧化锆材料在不同烧结温度下各层的透光性和色差,并与二硅酸锂进行比较。方法:采用四层氧化锆体系:DD cube ONE ML (4Y-TZP)、DD cube x2 ML (5Y-TZP);并与IPS e.max CAD HT (LS2)进行比较。从两种氧化锆材料的LS2和单个层中获得了片状a2阴影样品。然后将单个层平均分为三种不同的烧结温度:1300°C, 1450°C和1600°C。用分光光度计测定TP和ΔE。拍摄扫描电镜图像。数据分析采用SPSS 24.0软件,p值为⟨0.05。结果:不同类型陶瓷材料的TP值和ΔE值有显著差异。对两种氧化锆材料进行了测试,并与LS2进行了比较,结果表明不同的烧结温度产生了不同的TP值和ΔE值。最后,不同氧化锆层间的TP值和ΔE值存在差异。结论:烧结温度、陶瓷材料类型和氧化锆层数对光学性能有显著影响。临床意义:多层氧化锆材料具有独特的梯度效应,可有效提高整体氧化锆修复体的美观性。但烧结条件仍需优化。
{"title":"Influence of Layer and Sintering Temperature on the Optical Properties of Multilayered Zirconia Materials.","authors":"B A Alfahed, A S Alayad","doi":"10.1922/EJPRD_2508Alfahed12","DOIUrl":"https://doi.org/10.1922/EJPRD_2508Alfahed12","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the translucency and color difference of the individual layers of two multi-layered zirconia materials at different sintering temperatures and to compare them with lithium disilicate.</p><p><strong>Methods: </strong>Multi-layered zirconia systems with four distinct layers were selected for this study: DD cube ONE ML (4Y-TZP), DD cubeX2 ML (5Y-TZP); and compared with IPS e.max CAD HT (LS2). Plate-shaped A2-shade specimens were obtained from LS2 and individual layers of both zirconia materials. Individual layers were then divided equally into three different sintering temperatures:1300°C, 1450°C, and 1600°C. The TP and ΔE were determined by a spectrophotometer. SEM images were taken. Data was analyzed using SPSS 24.0 software with a p-value ⟨0.05.</p><p><strong>Results: </strong>A significant difference was found in TP and ΔE values amongst all types of ceramic materials. Different sintering temperatures yielded distinct TP and ΔE values when both zirconia materials were tested and compared with LS2. Finally, TP and ΔE values were different amongst the zirconia layers.</p><p><strong>Conclusion: </strong>Sintering temperature, type of ceramic material and different zirconia layers significantly affected the optical properties.</p><p><strong>Clinical significance: </strong>Multi-layered zirconia materials possess a unique gradient effect that could efficiently enhance the esthetics of monolithic zirconia restorations. However, the sintering condition should be optimized.</p>","PeriodicalId":45686,"journal":{"name":"European Journal of Prosthodontics and Restorative Dentistry","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10132980","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 : 2023-08-31DOI: 10.1922/EJPRD_2479Millar05
B J Millar, D Parmenter
Background: Pathological tooth wear is an increasing concern and may require intervention and occlusal rehabilitation. Often the treatment includes distalisaton of the mandible to restore the dentition in centric relation. Obstructive sleep apnoea (OSA) is another condition treated my mandibular repositioning but in this case by an advancement appliance. The authors have a concern that there could be a group of patients with both conditions where distalisation for their tooth wear management would be contrary to their OSA treatment. This paper aims to look at this potential risk.
Methods: A literature search was carried out using the following keywords (OSA or sleep apnoea or apnea or snoring or AHI or Epworth score) and for tooth surface loss (TSL or distalisation or centric relation or tooth wear or full mouth rehabilitation).
Results: No studies were identified which considered the effect of mandibular distalisation on OSA.
Conclusion: There is a theoretical risk that dental treatment involving distalisation may adversely affect patients at risk of OSA or worsening their condition due to the modification of airway patency. Further study is recommended.
{"title":"Mandibular Distalisation for Tooth Wear in Patients Requiring Mandibular Protrusion for Sleep Apnoea.","authors":"B J Millar, D Parmenter","doi":"10.1922/EJPRD_2479Millar05","DOIUrl":"https://doi.org/10.1922/EJPRD_2479Millar05","url":null,"abstract":"<p><strong>Background: </strong>Pathological tooth wear is an increasing concern and may require intervention and occlusal rehabilitation. Often the treatment includes distalisaton of the mandible to restore the dentition in centric relation. Obstructive sleep apnoea (OSA) is another condition treated my mandibular repositioning but in this case by an advancement appliance. The authors have a concern that there could be a group of patients with both conditions where distalisation for their tooth wear management would be contrary to their OSA treatment. This paper aims to look at this potential risk.</p><p><strong>Methods: </strong>A literature search was carried out using the following keywords (OSA or sleep apnoea or apnea or snoring or AHI or Epworth score) and for tooth surface loss (TSL or distalisation or centric relation or tooth wear or full mouth rehabilitation).</p><p><strong>Results: </strong>No studies were identified which considered the effect of mandibular distalisation on OSA.</p><p><strong>Conclusion: </strong>There is a theoretical risk that dental treatment involving distalisation may adversely affect patients at risk of OSA or worsening their condition due to the modification of airway patency. Further study is recommended.</p>","PeriodicalId":45686,"journal":{"name":"European Journal of Prosthodontics and Restorative Dentistry","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10514679","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 : 2023-08-31DOI: 10.1922/EJPRD_2474Angelo08
E Angelo, A Guerra, R Vitti, L R M Martins
To evaluate the ethanol wet-bonding protocol with a universal adhesive in etch-andrinse and self-etch modes on microleakage and microtensile bond strength (μTBS) of resin composite to different dentin depth. Molars were distributed into groups according to protocol and dentin depth: universal adhesive (C - control), ethanol + universal adhesive (E), and phosphoric acid etch + ethanol + universal adhesive (PA+E). All protocols were applied to dentin at superficial, middle and deep depths. The specimens (n = 10) were submitted to microleakage and μTBS tests. Half of specimens were submitted to thermocycling (10,000 cycles; 5∘C/55∘C). Data were submitted to Spearman correlation (μTBS x microleakage) and three-way ANOVA (protocol, aging and depth), followed by Bonferroni post hoc test (α=0.05). PA+E group showed highest μTBS and lowest microleakage mean values in 24h. All groups presented similar μTBS mean values after thermocycling. The deep dentin showed less stable μTBS results. PA+E group presented highest microleakage mean values after thermocycling. Spearman's correlation showed a strong correlation between microleakage and μTBS. The PA+E group improved immediate adhesion and E group promoted a more stable μTBS in the long-term adhesion of universal adhesive. The aging for all protocols jeopardized the stability of the hybrid layer. The ethanol wet bonding technique associated with universal adhesive has enhanced the immediate result of the resin composite adhesion.
研究了通用粘结剂在蚀刻-冲洗和自蚀刻两种模式下对树脂复合材料与不同牙本质深度的微渗漏和微拉伸结合强度(μTBS)的影响。根据方案和牙釉质深度将磨牙分为三组:通用胶粘剂(C - control)、乙醇+通用胶粘剂(E)和磷酸蚀刻+乙醇+通用胶粘剂(PA+E)。所有方案均适用于牙本质的浅、中、深深度。10个试件分别进行微渗漏和μTBS试验。一半的标本进行热循环(10000次;5∘∘55 C / C)。数据进行Spearman相关(μTBS x微泄漏)和三向方差分析(方案、年龄和深度),然后进行Bonferroni事后检验(α=0.05)。PA+E组24h μTBS最高,微漏平均值最低。各组热循环后的μTBS平均值相近。牙本质深部的μTBS结果不太稳定。PA+E组热循环后微漏平均值最高。Spearman相关表明微泄漏与μTBS有较强的相关性。PA+E组改善了通用胶粘剂的即时粘附,E组促进了通用胶粘剂长期粘附时μTBS更稳定。所有协议的老化都破坏了混合层的稳定性。乙醇湿粘接技术与万能胶相结合,提高了树脂复合材料粘接的立竿见影效果。
{"title":"The Effect of Ethanol Associated with Universal Adhesive on Resin Composite Adhesion to Different Dentin Depths: A Long-Term In Vitro Study.","authors":"E Angelo, A Guerra, R Vitti, L R M Martins","doi":"10.1922/EJPRD_2474Angelo08","DOIUrl":"https://doi.org/10.1922/EJPRD_2474Angelo08","url":null,"abstract":"<p><p>To evaluate the ethanol wet-bonding protocol with a universal adhesive in etch-andrinse and self-etch modes on microleakage and microtensile bond strength (μTBS) of resin composite to different dentin depth. Molars were distributed into groups according to protocol and dentin depth: universal adhesive (C - control), ethanol + universal adhesive (E), and phosphoric acid etch + ethanol + universal adhesive (PA+E). All protocols were applied to dentin at superficial, middle and deep depths. The specimens (n = 10) were submitted to microleakage and μTBS tests. Half of specimens were submitted to thermocycling (10,000 cycles; 5∘C/55∘C). Data were submitted to Spearman correlation (μTBS x microleakage) and three-way ANOVA (protocol, aging and depth), followed by Bonferroni post hoc test (α=0.05). PA+E group showed highest μTBS and lowest microleakage mean values in 24h. All groups presented similar μTBS mean values after thermocycling. The deep dentin showed less stable μTBS results. PA+E group presented highest microleakage mean values after thermocycling. Spearman's correlation showed a strong correlation between microleakage and μTBS. The PA+E group improved immediate adhesion and E group promoted a more stable μTBS in the long-term adhesion of universal adhesive. The aging for all protocols jeopardized the stability of the hybrid layer. The ethanol wet bonding technique associated with universal adhesive has enhanced the immediate result of the resin composite adhesion.</p>","PeriodicalId":45686,"journal":{"name":"European Journal of Prosthodontics and Restorative Dentistry","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10495642","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 : 2023-08-31DOI: 10.1922/EJPRD_2463Jiang16
P Jiang, M A Atherton, B J Millar
Introduction: Air turbine dental drill noise contains high-frequency components that are of concern for patients and dental staff. Meanwhile, verbal communication between the dentist and patient is essential. Conventional active noise-cancelling headphones are ineffective for dental drill noise and simply suppress all sound and hinder communication.
Method: A compact passive earplug device was designed specifically to attenuate broadband high-frequency noise ranges from 5 to 8 kHz employing an array of quarter wavelength (QW) resonators. This device was 3D printed and tested against white noise to enhance the objectivity of analysis, using a calibrated ear and cheek simulator to effectively measure its performance.
Results: The results showed that the resonators produced an average reduction of 27 dB across the targeted frequency range. When compared with two proprietary passive earplugs, this developed passive device prototype was able to attenuate an average of 9 dB more across the target frequency range whilst delivering louder speech signals of 14 dB more. The results also show that using an array of resonators exhibits an accumulated effect of individual resonator performance.
Conclusions: This low-cost passive device could have a place in the dental clinic to reduce unwanted drill noise equivalent to the white noise high frequency spectra tested.
{"title":"A Passive Noise Attenuation Earplug Designed to Minimise Unwanted Air Turbine Driven High-Speed Dental Drill Noise.","authors":"P Jiang, M A Atherton, B J Millar","doi":"10.1922/EJPRD_2463Jiang16","DOIUrl":"https://doi.org/10.1922/EJPRD_2463Jiang16","url":null,"abstract":"<p><strong>Introduction: </strong>Air turbine dental drill noise contains high-frequency components that are of concern for patients and dental staff. Meanwhile, verbal communication between the dentist and patient is essential. Conventional active noise-cancelling headphones are ineffective for dental drill noise and simply suppress all sound and hinder communication.</p><p><strong>Method: </strong>A compact passive earplug device was designed specifically to attenuate broadband high-frequency noise ranges from 5 to 8 kHz employing an array of quarter wavelength (QW) resonators. This device was 3D printed and tested against white noise to enhance the objectivity of analysis, using a calibrated ear and cheek simulator to effectively measure its performance.</p><p><strong>Results: </strong>The results showed that the resonators produced an average reduction of 27 dB across the targeted frequency range. When compared with two proprietary passive earplugs, this developed passive device prototype was able to attenuate an average of 9 dB more across the target frequency range whilst delivering louder speech signals of 14 dB more. The results also show that using an array of resonators exhibits an accumulated effect of individual resonator performance.</p><p><strong>Conclusions: </strong>This low-cost passive device could have a place in the dental clinic to reduce unwanted drill noise equivalent to the white noise high frequency spectra tested.</p>","PeriodicalId":45686,"journal":{"name":"European Journal of Prosthodontics and Restorative Dentistry","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10127190","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 : 2023-08-31DOI: 10.1922/EJPRD_2445Teixeira10
A B V Teixeira, H C Aguiar, J D C Tardelli, A C Dos Reis
This study aims to identify dental materials and their effectiveness in preventing caries in patients after chemotherapy and radiotherapy for the head and neck. The electronic search was performed in PubMed, Science Direct, Embase and Scopus. All 653 articles found passed through a double-blinded screening process. The exclusion of articles by reading titles and abstracts selected 16 articles for full reading, of which 4 were included into the study. A risk of bias analysis for non-randomized and randomized articles was performed using respectively the ROBINS I and ROB II tools. The data extraction suggested that the casein phosphopeptide-amorphous calcium phosphate (CPP-ACP), in association with fluorine, is able to form harder surfaces compared to the control group, the intraoral fluoride-releasing system (IFRS) effectiveness is similar to the fluorine in gel and a mouthwash composed of natural enzymes (Oral7) did not demonstrate effectiveness in the prevention dental caries. New randomized controlled clinical trials are necessary to evaluate the effectiveness of prevention when applying dental materials in patients after treatment of head and neck cancer.
{"title":"Prevention of Caries in Cancer Patients: A Systematic Review on the Effectiveness of Dental Materials.","authors":"A B V Teixeira, H C Aguiar, J D C Tardelli, A C Dos Reis","doi":"10.1922/EJPRD_2445Teixeira10","DOIUrl":"https://doi.org/10.1922/EJPRD_2445Teixeira10","url":null,"abstract":"<p><p>This study aims to identify dental materials and their effectiveness in preventing caries in patients after chemotherapy and radiotherapy for the head and neck. The electronic search was performed in PubMed, Science Direct, Embase and Scopus. All 653 articles found passed through a double-blinded screening process. The exclusion of articles by reading titles and abstracts selected 16 articles for full reading, of which 4 were included into the study. A risk of bias analysis for non-randomized and randomized articles was performed using respectively the ROBINS I and ROB II tools. The data extraction suggested that the casein phosphopeptide-amorphous calcium phosphate (CPP-ACP), in association with fluorine, is able to form harder surfaces compared to the control group, the intraoral fluoride-releasing system (IFRS) effectiveness is similar to the fluorine in gel and a mouthwash composed of natural enzymes (Oral7) did not demonstrate effectiveness in the prevention dental caries. New randomized controlled clinical trials are necessary to evaluate the effectiveness of prevention when applying dental materials in patients after treatment of head and neck cancer.</p>","PeriodicalId":45686,"journal":{"name":"European Journal of Prosthodontics and Restorative Dentistry","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10132471","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 : 2023-08-31DOI: 10.1922/EJPRD_2415Silva06
A Silva, E Soares, G Abuna, R Vitti, M Sinhoreti
The aim of this study was to verify the effect of finishing and polishing procedures and glaze application on biaxial strength and surface properties of milled feldspathic ceramic blocks. Forty disc-shaped samples (14 mm diameter, 1.2 mm thickness) were divided in four groups (n = 10): C (control): no finishing and polishing; FP: finishing and polishing; G: glaze; and GFP: finishing and polishing + glaze. The specimens were subject to surface gloss (glossmeter) and roughness (profilometer) tests followed by biaxial flexural strength (universal testing machine) and Vickers hardness (microhardness tester) tests. The surface morphological analysis was performed by scanning electron microscopy (n = 3). Data were submitted to normality tests with Shapiro-Wilk, and one-way ANOVA followed by Tukey's post hoc test (α = 0.05). Group C showed the lowest gloss. For the hardness test, groups C, FP, and GFP obtained the highest values without significant differences between them. Regarding the biaxial strength test, group C showed the lowest mean value. Both finishing and polishing methods (FP and GFP) showed surface properties similar or better than the control, and with higher biaxial strength.
{"title":"Finishing and Polishing Procedures and Glaze Application on Physical Properties of a Fine-Structure Feldspathic Ceramic.","authors":"A Silva, E Soares, G Abuna, R Vitti, M Sinhoreti","doi":"10.1922/EJPRD_2415Silva06","DOIUrl":"https://doi.org/10.1922/EJPRD_2415Silva06","url":null,"abstract":"<p><p>The aim of this study was to verify the effect of finishing and polishing procedures and glaze application on biaxial strength and surface properties of milled feldspathic ceramic blocks. Forty disc-shaped samples (14 mm diameter, 1.2 mm thickness) were divided in four groups (n = 10): C (control): no finishing and polishing; FP: finishing and polishing; G: glaze; and GFP: finishing and polishing + glaze. The specimens were subject to surface gloss (glossmeter) and roughness (profilometer) tests followed by biaxial flexural strength (universal testing machine) and Vickers hardness (microhardness tester) tests. The surface morphological analysis was performed by scanning electron microscopy (n = 3). Data were submitted to normality tests with Shapiro-Wilk, and one-way ANOVA followed by Tukey's post hoc test (α = 0.05). Group C showed the lowest gloss. For the hardness test, groups C, FP, and GFP obtained the highest values without significant differences between them. Regarding the biaxial strength test, group C showed the lowest mean value. Both finishing and polishing methods (FP and GFP) showed surface properties similar or better than the control, and with higher biaxial strength.</p>","PeriodicalId":45686,"journal":{"name":"European Journal of Prosthodontics and Restorative Dentistry","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10198929","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 : 2023-08-31DOI: 10.1922/EJPRD_2454Muniz10
I A F Muniz, D E S Campos, I L A Ribeiro, W F Rodrigues, S D da Silva, A U D Batista, P R F Bonan
Objective: The antimicrobial effect of prosthetic materials treated with chitosan was systematically reviewed.
Methods: The searches were carried out on PubMed/Medline, Scopus, ISI Web of Science, LILACS, Embase, and Open Grey with searches performed in March 2022. Selection of in vitro studies, data extraction and risk of bias analysis were performed following the PRISMA guidelines and registered at the Open Science Framework. The evaluated prosthetic materials corresponded to PMMA and tissue conditioner, treated with chitosan.
Results: After evaluating the eligibility criteria, 11 articles were included for the qualitative synthesis. The evaluated prosthetic materials corresponded to PMMA (n=8) and tissue conditioner (n=3). All studies performed the incorporation of chitosan in the tissue conditioner (n=3). Regarding PMMA, the use of chitosan as a denture cleanser was the most used (n=3), followed by incorporation (n=2), multilayers coating onto PMMA (n=2) and denture adhesive for PMMA (n=1). Chitosan has antimicrobial activity and is effective in the treatment of prosthetic materials in most studies, but it depends on some factors, such as the treatment method, the type and characteristics of the chitosan, the microorganism evaluated, and its form of organization.
Conclusion: Chitosan showed highly antimicrobial activity and was effective when used in prosthetic materials.
目的:系统综述壳聚糖处理修复体材料的抗菌效果。方法:检索PubMed/Medline、Scopus、ISI Web of Science、LILACS、Embase和Open Grey,检索时间为2022年3月。体外研究的选择、数据提取和偏倚风险分析按照PRISMA指南进行,并在开放科学框架注册。评估的假体材料对应于PMMA和组织调节剂,经壳聚糖处理。结果:经评定合格标准后,纳入11篇文献进行定性综合。评估的假体材料对应于PMMA (n=8)和组织调节剂(n=3)。所有研究均在组织调理剂中掺入壳聚糖(n=3)。对于PMMA,使用壳聚糖作为义齿清洁剂最多(n=3),其次是掺入(n=2), PMMA多层涂层(n=2)和PMMA义齿粘接剂(n=1)。壳聚糖具有抗菌活性,在大多数研究中都是有效的,但这取决于一些因素,如处理方法、壳聚糖的类型和特性、所评价的微生物及其组织形式。结论:壳聚糖具有良好的抗菌活性,可用于修复材料。
{"title":"Antimicrobial Activity in Chitosan-Treated Prosthetic Materials: A Systematic Review.","authors":"I A F Muniz, D E S Campos, I L A Ribeiro, W F Rodrigues, S D da Silva, A U D Batista, P R F Bonan","doi":"10.1922/EJPRD_2454Muniz10","DOIUrl":"https://doi.org/10.1922/EJPRD_2454Muniz10","url":null,"abstract":"<p><strong>Objective: </strong>The antimicrobial effect of prosthetic materials treated with chitosan was systematically reviewed.</p><p><strong>Methods: </strong>The searches were carried out on PubMed/Medline, Scopus, ISI Web of Science, LILACS, Embase, and Open Grey with searches performed in March 2022. Selection of in vitro studies, data extraction and risk of bias analysis were performed following the PRISMA guidelines and registered at the Open Science Framework. The evaluated prosthetic materials corresponded to PMMA and tissue conditioner, treated with chitosan.</p><p><strong>Results: </strong>After evaluating the eligibility criteria, 11 articles were included for the qualitative synthesis. The evaluated prosthetic materials corresponded to PMMA (n=8) and tissue conditioner (n=3). All studies performed the incorporation of chitosan in the tissue conditioner (n=3). Regarding PMMA, the use of chitosan as a denture cleanser was the most used (n=3), followed by incorporation (n=2), multilayers coating onto PMMA (n=2) and denture adhesive for PMMA (n=1). Chitosan has antimicrobial activity and is effective in the treatment of prosthetic materials in most studies, but it depends on some factors, such as the treatment method, the type and characteristics of the chitosan, the microorganism evaluated, and its form of organization.</p><p><strong>Conclusion: </strong>Chitosan showed highly antimicrobial activity and was effective when used in prosthetic materials.</p>","PeriodicalId":45686,"journal":{"name":"European Journal of Prosthodontics and Restorative Dentistry","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10197307","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 : 2023-08-31DOI: 10.1922/EJPRD_2478Sahin08
Z Sahin, N E Ozer, C Yιkιcι, M A Kιlιçarslan
INTRODUCTION The aim of the study was to evaluate the mechanical characteristics of resin composites produced by additive and subtractive manufacturing. METHODS Six composite resin materials produced by subtractive (Vita Enamic-VE, Cerasmart-CE, Lava Ultimate-LU) and additive manufacturing (Varseo Smile Crown plus-VSC, Saremco Print Crowntec-SPC, Formlabs 3B Permanent crown-FLP) were selected. The three-point bending test was performed, and surface hardness of test specimens was measured. RESULTS The flexural strength values of CE, SPC and LU test groups were found to be statistically higher when compared to VE, FLP and VSC test groups (p⟨0.0033). The modulus of elasticity values of the test specimens was listed as VE>LU>CE>SPC>FLP>VSC. The FLP group [35.11(4.46)] had the lowest surface hardness values, whereas the VE group [252.50 (21.5)] had the highest values. Other groups were listed as LU⟩CE⟩SPC⟩VSC in terms of surface hardness. CONCLUSIONS According to the ISO 6872:2015, the flexural strengths of all resin composites were found to be acceptable for single unit fixed restorations. However, the VSC group's flexural strength is suitable for inlay, onlay, veneer restorations or single-unit anterior fixed dental prostheses. Also, VSC may not be a suitable choice for posterior restorations due to its low flexural strength.
{"title":"Mechanical Characteristics of Composite Resins Produced by Additive and Subtractive Manufacturing.","authors":"Z Sahin, N E Ozer, C Yιkιcι, M A Kιlιçarslan","doi":"10.1922/EJPRD_2478Sahin08","DOIUrl":"https://doi.org/10.1922/EJPRD_2478Sahin08","url":null,"abstract":"INTRODUCTION The aim of the study was to evaluate the mechanical characteristics of resin composites produced by additive and subtractive manufacturing. METHODS Six composite resin materials produced by subtractive (Vita Enamic-VE, Cerasmart-CE, Lava Ultimate-LU) and additive manufacturing (Varseo Smile Crown plus-VSC, Saremco Print Crowntec-SPC, Formlabs 3B Permanent crown-FLP) were selected. The three-point bending test was performed, and surface hardness of test specimens was measured. RESULTS The flexural strength values of CE, SPC and LU test groups were found to be statistically higher when compared to VE, FLP and VSC test groups (p⟨0.0033). The modulus of elasticity values of the test specimens was listed as VE>LU>CE>SPC>FLP>VSC. The FLP group [35.11(4.46)] had the lowest surface hardness values, whereas the VE group [252.50 (21.5)] had the highest values. Other groups were listed as LU⟩CE⟩SPC⟩VSC in terms of surface hardness. CONCLUSIONS According to the ISO 6872:2015, the flexural strengths of all resin composites were found to be acceptable for single unit fixed restorations. However, the VSC group's flexural strength is suitable for inlay, onlay, veneer restorations or single-unit anterior fixed dental prostheses. Also, VSC may not be a suitable choice for posterior restorations due to its low flexural strength.","PeriodicalId":45686,"journal":{"name":"European Journal of Prosthodontics and Restorative Dentistry","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10132478","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}