Shear Bond Strength of Fixed Retainer Bonded with Different Types of Composites | ||
| Al-Azhar Assiut Dental Journal | ||
| Article 6, Volume 4, Issue 2, October 2021, Pages 151-157 PDF (1.47 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/aadj.2021.208207 | ||
| Author | ||
| Wesam El Dein R. Ali* | ||
| Department of Orthodontics, Faculty of Dental Medicine, (Assuit, boys), Al-Azhar University, Egypt. | ||
| Abstract | ||
| Aim: Aims of the study were to measure shear bond strength of different composite types used in bonding fixed retainer. Subjects and methods: The sample of this study consists of sixty extracted sound human premolar teeth that were divided into three wire groups and three fiber-reinforced composite groups. In wire and fiber-reinforced composite groups, one group is bonded with control conventional composite and two groups bonded using different types of flowable composites. Each sample was etched, bonded and then inserted into the universal testing machine. The resulted data were collected and then analyzed to obtain the mean values of shear bond strength of each sample. Results: In wire groups, the results demonstrated that the difference between groups was statistically non-significant (p value>0.05) as indicated by one way ANOVA. In FRC groups, the results demonstrated that the difference between groups was statistically significant (p value>0.05) as indicated by one way ANOVA. There was a statistically significant difference between conventional composite and Tetric-N flowable composite when used, respectively. Conclusion: In all FRC groups the results of shear bond strength were less than the results of wire groups. It was found that the FRC weakens instead of strengthens the fiber/composite complex. | ||
| Keywords | ||
| Shear bond strength; fixed retainer; composite; CBCT; fiber-reinforced composite; flowable composites | ||
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