E. Çelik, F. Cakici, Evren Sarıyılmaz, Ayça Tulga, E. B. Cakici, D. Dede, S. Polat
Introduction: Different usage areas of newly developed restorative materials have increased.. Objectives: The purpose of this study was to investigate usability of a newly produced resin nano-ceramic (RNC) as a post material, and how to increase bond strength of different post systems to root canal dentin. Material and methods: Crowns of eighty extracted maxillary central incisors were separated transversal-ly at cementoenamel junction. The specimens were then endodontically prepared. Post spaces were opened at a diameter of 1.8 mm with a length of 10 mm on the root, maintaining 4 mm of filling material in apical third. 40 RNC post and 40 fiber post samples were divided into 4 sub-groups ( n = 10), and different surface treatments were divided into control (Cnt), tribochemical coating (Tbc), and laser-irradiated (Lsr 1 and Lsr 2) groups. After adhesive cementation of posts to root canal dentin, the specimens were cut with 1 mm thicknesses. Push-out bond strength (PBS) tests were performed using a universal testing machine, and the results were analyzed using two-way analysis of variance and Tukey tests. Results: The highest PBS value for fiber post groups was observed in the Tbc group (6.51 MPa). The highest PBS values were observed in the Tbc group (6.22 MPa), particularly in the RNC post group, and this value was statistically different from the other groups ( p < 0.05). Conclusions: Tbc treatment of posts may be a suitable way for increasing the bond strength. The experimentally produced RNC posts showed PBS values close to the prefabricated fiber posts. Therefore, they could be an alternative restorative material for repairing endodontically treated teeth.
{"title":"Evaluation of bond strength of resin nano-ceramic as post material","authors":"E. Çelik, F. Cakici, Evren Sarıyılmaz, Ayça Tulga, E. B. Cakici, D. Dede, S. Polat","doi":"10.5114/JOS.2021.106589","DOIUrl":"https://doi.org/10.5114/JOS.2021.106589","url":null,"abstract":"Introduction: Different usage areas of newly developed restorative materials have increased.. Objectives: The purpose of this study was to investigate usability of a newly produced resin nano-ceramic (RNC) as a post material, and how to increase bond strength of different post systems to root canal dentin. Material and methods: Crowns of eighty extracted maxillary central incisors were separated transversal-ly at cementoenamel junction. The specimens were then endodontically prepared. Post spaces were opened at a diameter of 1.8 mm with a length of 10 mm on the root, maintaining 4 mm of filling material in apical third. 40 RNC post and 40 fiber post samples were divided into 4 sub-groups ( n = 10), and different surface treatments were divided into control (Cnt), tribochemical coating (Tbc), and laser-irradiated (Lsr 1 and Lsr 2) groups. After adhesive cementation of posts to root canal dentin, the specimens were cut with 1 mm thicknesses. Push-out bond strength (PBS) tests were performed using a universal testing machine, and the results were analyzed using two-way analysis of variance and Tukey tests. Results: The highest PBS value for fiber post groups was observed in the Tbc group (6.51 MPa). The highest PBS values were observed in the Tbc group (6.22 MPa), particularly in the RNC post group, and this value was statistically different from the other groups ( p < 0.05). Conclusions: Tbc treatment of posts may be a suitable way for increasing the bond strength. The experimentally produced RNC posts showed PBS values close to the prefabricated fiber posts. Therefore, they could be an alternative restorative material for repairing endodontically treated teeth.","PeriodicalId":35469,"journal":{"name":"Journal of Stomatology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71125165","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}
{"title":"Curing depth and degree of conversion of different nano-hybrid composites","authors":"mohammad ali wannous, S. Abboud","doi":"10.5114/JOS.2021.108839","DOIUrl":"https://doi.org/10.5114/JOS.2021.108839","url":null,"abstract":"","PeriodicalId":35469,"journal":{"name":"Journal of Stomatology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71125395","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}
Betul Busra Ursavas, T. Bezgin, Mert Ocak, B. Bilecenoğlu, Ayşe Işıl Orhan
Introduction: In order to obtain a good prognosis in resin restorations, a strong adhesion not allowing leakage between tooth tissues and restoration should be provided. Effectiveness of universal adhesives on leakage in primary teeth compomer restorations has not been studied. Objectives: The objective of this study was to evaluate sealing ability of a universal adhesive used with different etching modes after 1- and 3-year of artificial aging in compomer restorations of primary teeth. Material and methods: Sixty-three extracted mandibular primary second molars were used in the study. Class II box cavities (3 mm × 3 mm × 1.5 mm) were prepared in each tooth. Then, teeth were divided into three groups ( n = 21), including total-etch, self-etch, and selective-etch modes. All teeth were restored with compomer (Dyract Extra, Dentsply; Konstanz, Germany) after universal adhesive (Prime & Bond Elect Universal, Denstsply; Milford, USA) application. Teeth were divided into three sub-groups ( n = 7) with the following three different aging protocols: 24 h water storage, 1-year aging, and 3-year aging with chewing simulator (Esetron Chewing Simulator; Ankara, Turkey). 50% silver nitrate solution was applied as a tracer, and its’ penetration was analyzed in mm3 using micro-computed tomography system (SkyScan 1275; Kontich, Belgium). Data was analyzed with Kruskal-Wallis H and Friedman tests. Results: One-year aging significantly increased the leakage in self-etch group of samples (0.197 ± 0.49 mm 3 ) compared to the total-etch (0.001 ± 0.000 mm 3 ) and selective-etch (0.001 ± 0.000 mm 3 ) groups ( p < 0.05). There was no diffe rence between the groups at baseline and after the 3-year artificial aging ( p > 0.05). Conclusions: Self-etch mode of adhesive revealed higher micro-leakage levels at all examination intervals; how-ever, the difference was only significant after the 1-year aging. It can be concluded that universal adhesives can be used with all etching modes in compomer restorations.
在树脂修复体中，为了获得良好的预后，需要在牙组织与修复体之间提供不渗漏的强附着力。通用粘接剂治疗乳牙复合修复体渗漏的效果尚未见研究。目的:本研究的目的是评估一种通用胶粘剂在人工老化1年和3年后不同蚀刻模式下对乳牙复合修复体的密封能力。材料与方法:采用63颗拔除的下颌初级第二磨牙进行研究。在每颗牙齿上制备3 mm × 3 mm × 1.5 mm的II类箱形腔。然后，将牙齿分为三组(n = 21)，包括全蚀、自蚀和选择性蚀模式。所有牙齿均使用comomer (Dyract Extra, Dentsply;康斯坦茨，德国)万能胶(Prime & Bond Elect universal, Denstsply;Milford, USA)申请。将牙齿分为3个亚组(n = 7)，采用以下3种不同的老化方案:24 h水储存，1年老化，3年老化使用咀嚼模拟器(Esetron咀嚼模拟器;安卡拉,土耳其)。用50%硝酸银溶液作为示踪剂，用微计算机断层扫描系统(SkyScan 1275;Kontich、比利时)。数据分析采用Kruskal-Wallis H和Friedman检验。结果:与全蚀组(0.001±0.000 mm 3)和选择性蚀组(0.001±0.000 mm 3)相比，自蚀组(0.197±0.49 mm 3)老化1年显著增加(p < 0.05)。人工衰老3年后各组间差异无统计学意义(p < 0.05)。结论:自蚀刻方式的胶粘剂在各检测间隔均显示出较高的微渗漏水平;然而，只有在1年后，这种差异才显着。结果表明，通用胶粘剂可用于各种蚀刻方式的复合材料修复。
{"title":"In-vitro evaluation of micro-leakage of a universal adhesive used with different etching modes in compomer restorations","authors":"Betul Busra Ursavas, T. Bezgin, Mert Ocak, B. Bilecenoğlu, Ayşe Işıl Orhan","doi":"10.5114/jos.2021.111657","DOIUrl":"https://doi.org/10.5114/jos.2021.111657","url":null,"abstract":"Introduction: In order to obtain a good prognosis in resin restorations, a strong adhesion not allowing leakage between tooth tissues and restoration should be provided. Effectiveness of universal adhesives on leakage in primary teeth compomer restorations has not been studied. Objectives: The objective of this study was to evaluate sealing ability of a universal adhesive used with different etching modes after 1- and 3-year of artificial aging in compomer restorations of primary teeth. Material and methods: Sixty-three extracted mandibular primary second molars were used in the study. Class II box cavities (3 mm × 3 mm × 1.5 mm) were prepared in each tooth. Then, teeth were divided into three groups ( n = 21), including total-etch, self-etch, and selective-etch modes. All teeth were restored with compomer (Dyract Extra, Dentsply; Konstanz, Germany) after universal adhesive (Prime & Bond Elect Universal, Denstsply; Milford, USA) application. Teeth were divided into three sub-groups ( n = 7) with the following three different aging protocols: 24 h water storage, 1-year aging, and 3-year aging with chewing simulator (Esetron Chewing Simulator; Ankara, Turkey). 50% silver nitrate solution was applied as a tracer, and its’ penetration was analyzed in mm3 using micro-computed tomography system (SkyScan 1275; Kontich, Belgium). Data was analyzed with Kruskal-Wallis H and Friedman tests. Results: One-year aging significantly increased the leakage in self-etch group of samples (0.197 ± 0.49 mm 3 ) compared to the total-etch (0.001 ± 0.000 mm 3 ) and selective-etch (0.001 ± 0.000 mm 3 ) groups ( p < 0.05). There was no diffe rence between the groups at baseline and after the 3-year artificial aging ( p > 0.05). Conclusions: Self-etch mode of adhesive revealed higher micro-leakage levels at all examination intervals; how-ever, the difference was only significant after the 1-year aging. It can be concluded that universal adhesives can be used with all etching modes in compomer restorations.","PeriodicalId":35469,"journal":{"name":"Journal of Stomatology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71125905","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}
Pamela Flores-Jara, Carlos Liñán-Durán, R. León-Manco, Allison Chávez-Alayo
Introduction: Endodontic microsurgery is a treatment option if previous procedures have been unsuccessful. As a result, many patients may suffer from a high level of dental anxiety. Dental anxiety impacts different aspects of life, so it is important to measure it with psychometric scales to avoid its underestimation. Previous studies related to dental anxiety used visual analogue scale (VAS), which is a quick and simple non-verbal measurement instrument. Objectives: The aim of this study was to measure and compare pre- and post-endodontic microsurgery dental anxiety using VAS. Material and methods: Thirty-five patients, who met the inclusion criteria and were previously scheduled to undergo endodontic microsurgery, answered VAS related to dental anxiety before and after the procedure. Microsurgery was performed by postgraduate students and monitored by a clinical supervisor. VAS values were analyzed with descriptive statistics. Shapiro-Wilk test determined to use Wilcoxon rank-sum test. Confidence level of the study was 95% and p < 0.05. Results: Anxiety levels showed no significant change over the analyzed period. Pre- and post-endodontic microsurgery anxiety levels did not markedly change in relation to gender either. Nevertheless, women’s anxiety median values tended to decrease after the endodontic microsurgery. On the contrary, men tended to increase their anxiety levels after the procedure. Conclusions: Within the limits of the present study, there was not a statistically significant difference in the pre-and post-endodontic microsurgery anxiety values.
{"title":"Dental anxiety before and after endodontic microsurgery","authors":"Pamela Flores-Jara, Carlos Liñán-Durán, R. León-Manco, Allison Chávez-Alayo","doi":"10.5114/JOS.2021.104696","DOIUrl":"https://doi.org/10.5114/JOS.2021.104696","url":null,"abstract":"Introduction: Endodontic microsurgery is a treatment option if previous procedures have been unsuccessful. As a result, many patients may suffer from a high level of dental anxiety. Dental anxiety impacts different aspects of life, so it is important to measure it with psychometric scales to avoid its underestimation. Previous studies related to dental anxiety used visual analogue scale (VAS), which is a quick and simple non-verbal measurement instrument. Objectives: The aim of this study was to measure and compare pre- and post-endodontic microsurgery dental anxiety using VAS. Material and methods: Thirty-five patients, who met the inclusion criteria and were previously scheduled to undergo endodontic microsurgery, answered VAS related to dental anxiety before and after the procedure. Microsurgery was performed by postgraduate students and monitored by a clinical supervisor. VAS values were analyzed with descriptive statistics. Shapiro-Wilk test determined to use Wilcoxon rank-sum test. Confidence level of the study was 95% and p < 0.05. Results: Anxiety levels showed no significant change over the analyzed period. Pre- and post-endodontic microsurgery anxiety levels did not markedly change in relation to gender either. Nevertheless, women’s anxiety median values tended to decrease after the endodontic microsurgery. On the contrary, men tended to increase their anxiety levels after the procedure. Conclusions: Within the limits of the present study, there was not a statistically significant difference in the pre-and post-endodontic microsurgery anxiety values.","PeriodicalId":35469,"journal":{"name":"Journal of Stomatology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71124300","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}
A. Shokri, S. Lari, Faezeh Yousefi, Shoeib Fathi, Naser Mohammad gholi Mezerji
{"title":"Pharyngeal airway volume among different vertical skeletal patterns using cone-beam computed tomography","authors":"A. Shokri, S. Lari, Faezeh Yousefi, Shoeib Fathi, Naser Mohammad gholi Mezerji","doi":"10.5114/JOS.2021.109141","DOIUrl":"https://doi.org/10.5114/JOS.2021.109141","url":null,"abstract":"","PeriodicalId":35469,"journal":{"name":"Journal of Stomatology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71125244","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}
{"title":"Evaluation of efficiency of low-level laser on relapse after orthodontic treatment: a randomized controlled clinical trial","authors":"O. A. Ayach, R. Hadad, O. Hamadah","doi":"10.5114/JOS.2021.108838","DOIUrl":"https://doi.org/10.5114/JOS.2021.108838","url":null,"abstract":"","PeriodicalId":35469,"journal":{"name":"Journal of Stomatology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71125514","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}
Zofia Juszka, Wojciech Marchewka, Aleksandra Smolana, K. Szczeklik, Katarzyna Olszewska-Turek, B. Loster, J. Loster
{"title":"Assessment of stress load among Polish and English dental students’ divisions in Poland","authors":"Zofia Juszka, Wojciech Marchewka, Aleksandra Smolana, K. Szczeklik, Katarzyna Olszewska-Turek, B. Loster, J. Loster","doi":"10.5114/JOS.2021.109185","DOIUrl":"https://doi.org/10.5114/JOS.2021.109185","url":null,"abstract":"","PeriodicalId":35469,"journal":{"name":"Journal of Stomatology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71125572","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}
D. Pietraszewska, L. Postek-Stefańska, Danuta Ilczuk-Rypuła
{"title":"Oral health condition, status of hygiene and food habits in children undergoing anticancer therapy","authors":"D. Pietraszewska, L. Postek-Stefańska, Danuta Ilczuk-Rypuła","doi":"10.5114/JOS.2021.109184","DOIUrl":"https://doi.org/10.5114/JOS.2021.109184","url":null,"abstract":"","PeriodicalId":35469,"journal":{"name":"Journal of Stomatology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71125968","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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