Joyce R C Dos S Siqueira,Rita M M Rodriguez,Nathalia de C Ramos,Marco A Bottino,João P M Tribst
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Tensile strength tests were conducted using a universal testing machine, with half of the specimens subjected to 2000 thermal cycles before testing. Finite element analysis was employed to assess tensile stress distribution. Results: Statistical analysis (two-way ANOVA and Tukey's test at a 95% confidence level) revealed significant effects of cement type (p = 0.006) and thermal aging (p = 0.001) on bond strength. Glass ionomer cement exhibited the highest immediate resistance, while all types of cement were adversely affected by thermal aging, resulting in decreased bond strength. Conclusion: Thermal aging significantly alters the properties of 3D printing resin and affects the bond strength of provisional cement with 3D-printed crowns. Despite the adverse effects of thermal aging, glass ionomer cement demonstrated the highest immediate resistance. Clinicians should carefully consider these findings when selecting provisional cements for 3D-printed crowns.","PeriodicalId":9007,"journal":{"name":"BioMed Research International","volume":"23 1","pages":"7205011"},"PeriodicalIF":2.6000,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Immediate and Long-Term Pull-Out Bond Strength of 3D-Printed Provisional Crowns.\",\"authors\":\"Joyce R C Dos S Siqueira,Rita M M Rodriguez,Nathalia de C Ramos,Marco A Bottino,João P M Tribst\",\"doi\":\"10.1155/2024/7205011\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Background: Over the past decade, 3D printing technology has revolutionized various fields, including dentistry. Provisional restorations play a crucial role in prosthetic rehabilitation, necessitating the evaluation of their bond strength with different provisional cement agents. Aims: This study is aimed at assessing the immediate and long-term bond strength of 3D-printed dental crowns using three provisional cement agents. Materials and Methods: Provisional crowns (N = 36) were manufactured using 3D modeling software and cemented in dentin analogues (G10 Nema resin). After the crowns' fabrication, they were randomly divided into three groups (n = 12) for cementation with Relyx Temp 3M ESPE, Provicol-VOCO, and Meron-VOCO. Tensile strength tests were conducted using a universal testing machine, with half of the specimens subjected to 2000 thermal cycles before testing. Finite element analysis was employed to assess tensile stress distribution. Results: Statistical analysis (two-way ANOVA and Tukey's test at a 95% confidence level) revealed significant effects of cement type (p = 0.006) and thermal aging (p = 0.001) on bond strength. Glass ionomer cement exhibited the highest immediate resistance, while all types of cement were adversely affected by thermal aging, resulting in decreased bond strength. Conclusion: Thermal aging significantly alters the properties of 3D printing resin and affects the bond strength of provisional cement with 3D-printed crowns. Despite the adverse effects of thermal aging, glass ionomer cement demonstrated the highest immediate resistance. 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引用次数: 0
摘要
背景:在过去的十年中,3D 打印技术给包括牙科在内的各个领域带来了革命性的变化。临时修复体在修复过程中起着至关重要的作用,因此有必要对其与不同临时粘接剂的粘接强度进行评估。目的:本研究旨在评估使用三种临时粘接剂的 3D 打印牙冠的即刻和长期粘接强度。材料和方法:使用三维建模软件制作临时牙冠(N = 36),并与牙本质类似物(G10 Nema 树脂)粘接。牙冠制作完成后,随机分为三组(n = 12),分别使用 Relyx Temp 3M ESPE、Provicol-VOCO 和 Meron-VOCO进行粘接。使用万能试验机进行拉伸强度测试,其中一半试样在测试前进行了 2000 次热循环。采用有限元分析评估拉伸应力分布。结果统计分析(95% 置信度下的双向方差分析和 Tukey 检验)显示,水泥类型(p = 0.006)和热老化(p = 0.001)对粘接强度有显著影响。玻璃离子聚合物水门汀表现出最高的即刻耐受性,而所有类型的水门汀都受到热老化的不利影响,导致粘结强度下降。结论:热老化会明显改变 3D 打印树脂的特性,并影响临时粘接剂与 3D 打印牙冠的粘接强度。尽管热老化会产生不利影响,但玻璃离子聚合物水泥的即刻耐受性最高。临床医生在为 3D 打印牙冠选择临时粘接剂时应仔细考虑这些发现。
Immediate and Long-Term Pull-Out Bond Strength of 3D-Printed Provisional Crowns.
Background: Over the past decade, 3D printing technology has revolutionized various fields, including dentistry. Provisional restorations play a crucial role in prosthetic rehabilitation, necessitating the evaluation of their bond strength with different provisional cement agents. Aims: This study is aimed at assessing the immediate and long-term bond strength of 3D-printed dental crowns using three provisional cement agents. Materials and Methods: Provisional crowns (N = 36) were manufactured using 3D modeling software and cemented in dentin analogues (G10 Nema resin). After the crowns' fabrication, they were randomly divided into three groups (n = 12) for cementation with Relyx Temp 3M ESPE, Provicol-VOCO, and Meron-VOCO. Tensile strength tests were conducted using a universal testing machine, with half of the specimens subjected to 2000 thermal cycles before testing. Finite element analysis was employed to assess tensile stress distribution. Results: Statistical analysis (two-way ANOVA and Tukey's test at a 95% confidence level) revealed significant effects of cement type (p = 0.006) and thermal aging (p = 0.001) on bond strength. Glass ionomer cement exhibited the highest immediate resistance, while all types of cement were adversely affected by thermal aging, resulting in decreased bond strength. Conclusion: Thermal aging significantly alters the properties of 3D printing resin and affects the bond strength of provisional cement with 3D-printed crowns. Despite the adverse effects of thermal aging, glass ionomer cement demonstrated the highest immediate resistance. Clinicians should carefully consider these findings when selecting provisional cements for 3D-printed crowns.
期刊介绍:
BioMed Research International is a peer-reviewed, Open Access journal that publishes original research articles, review articles, and clinical studies covering a wide range of subjects in life sciences and medicine. The journal is divided into 55 subject areas.