EFFECT OF VENEERING LAYER THICKNESS ON CUSPAL DEFLECTION OF BI LAYERED FIBER REINFORCED RESIN COMPOSITE RESTORATIONS
Arisha, T., Elnawawy, M., Mohammed, H., Enab, T., Ali, A. (2023). EFFECT OF VENEERING LAYER THICKNESS ON CUSPAL DEFLECTION OF BI LAYERED FIBER REINFORCED RESIN COMPOSITE RESTORATIONS. EKB Journal Management System, 69(4), 3225-3230. doi: 10.21608/edj.2023.224352.2649
Tarek Adel Arisha; Mohamed samir Elnawawy; Huda Abed El-Haliem Mohammed; Tawakol Ahmed Enab; Ashraf Ibrahim Ali. "EFFECT OF VENEERING LAYER THICKNESS ON CUSPAL DEFLECTION OF BI LAYERED FIBER REINFORCED RESIN COMPOSITE RESTORATIONS". EKB Journal Management System, 69, 4, 2023, 3225-3230. doi: 10.21608/edj.2023.224352.2649
Arisha, T., Elnawawy, M., Mohammed, H., Enab, T., Ali, A. (2023). 'EFFECT OF VENEERING LAYER THICKNESS ON CUSPAL DEFLECTION OF BI LAYERED FIBER REINFORCED RESIN COMPOSITE RESTORATIONS', EKB Journal Management System, 69(4), pp. 3225-3230. doi: 10.21608/edj.2023.224352.2649
Arisha, T., Elnawawy, M., Mohammed, H., Enab, T., Ali, A. EFFECT OF VENEERING LAYER THICKNESS ON CUSPAL DEFLECTION OF BI LAYERED FIBER REINFORCED RESIN COMPOSITE RESTORATIONS. EKB Journal Management System, 2023; 69(4): 3225-3230. doi: 10.21608/edj.2023.224352.2649

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, Page 3225-3230  XML PDF (379.54 K)
Document Type: Original Article
DOI: 10.21608/edj.2023.224352.2649
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Authors
Tarek Adel Arisha email orcid 1; Mohamed samir Elnawawyorcid 2; Huda Abed El-Haliem Mohammedorcid 3; Tawakol Ahmed Enaborcid 4; Ashraf Ibrahim Aliorcid 5
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
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