EFFECT OF VENEERING LAYER THICKNESS ON CUSPAL DEFLECTION OF BI LAYERED FIBER REINFORCED RESIN COMPOSITE RESTORATIONS | ||
| Egyptian Dental Journal | ||
| Volume 69, Issue 4 - Serial Number 5, October 2023, Pages 3225-3230 PDF (379.54 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/edj.2023.224352.2649 | ||
| Authors | ||
| Tarek Adel Arisha* 1; Mohamed samir Elnawawy2; Huda Abed El-Haliem Mohammed3; Tawakol Ahmed Enab4; Ashraf Ibrahim Ali5 | ||
| 1Clinical Demonstrator, Department of Conservative Dentistry, Faculty of Dentistry, Mansoura University, Mansoura, Egypt | ||
| 2Clinical Assistant Professor, Department of Conservative Dentistry, Faculty of Dentistry, Mansoura University, Egypt | ||
| 3Lecturer, Department of Conservative Dentistry, Faculty of, Dentistry, Mansoura University, Egypt | ||
| 4Professor, Department of Production and Mechanical Design, Faculty of Engineering, Mansoura University, Egypt | ||
| 5Assistant Professor, Department of Conservative Dentistry, Faculty of Dentistry, Mansoura University, Mansoura, Egypt. | ||
| Abstract | ||
| Objectives: To evaluate the effect of veneering layer thickness on cuspal deflection of bi-layered fiber-reinforced resin composite restorations. Materials and methods: Two different resin composite restoration systems Short flowable bulk-fill fiber reinforced resin composite (SFRC) (Ever x flow and Essentia universal) and Flowable bulk fill resin composite (FBF) (SDR Flow+ and Neo Spectra ST) were used in this study. 60 premolars were classified into two groups A and B (n= 30) according to the restorative system used. Each group was classified into three subgroups one, two, and three according to the veneering layer thickness (n=10) (0.5 / 1 / 1.5 mm). The specimens were fixed under ZEISS, Stereo zoom Microscope (50 x) was attached to the camera. Three measurements were taken for each specimen, before restoration/ within 5 and 15 minutes. All collected data were tabulated, and subjected to statistical analysis using SPSS software. Results: A three-way ANOVA test was used to determine the effect of study variables (composite type, thickness, and time point) and their interaction on the cuspal deflection values (at p < 0.05), which revealed that none of the study variables had a significant effect on the cuspal deflection results (p > 0.05). Additionally, the interactions of all variables were not significant (p < 0.05). Conclusion: Within the limitations of this study, it is possible to conclude that neither the type of resin composite nor the veneering layer thickness affected the cuspal deflection result. | ||
| Keywords | ||
| SFRC; FBF; polymerization shrinkage stresses; cusp deflection | ||
|
Statistics Article View: 343 PDF Download: 232 |
||
