| ORIGINAL ARTICLE |
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| Year : 2022 | Volume
: 25
| Issue : 3 | Page : 258-263 |
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Fracture resistance of lab composite versus all-ceramic restorations in class II inlay cavity preparations: An in vitro study
Smridhi Bhanot1, Pardeep Mahajan1, Nitika Bajaj2, Prashant Monga1, Amit Sood1, Rishidev Yadav3
1 Department of Conservative Dentistry and Endodontics, Genesis Institute of Dental Sciences and Research, Ferozepur, Punjab, India
2 Department of Pediatric and Preventive Dentistry, Dashmesh Institute of Research and Dental Sciences, Faridkot, Punjab, India
3 Department of Conservative Dentistry and Endodontics, Hazaribag College of Dental Sciences and Hospital, Hazaribagh, Jharkhand, India
Correspondence Address:
Dr. Smridhi Bhanot
Department of Conservative Dentistry and Endodontics, Genesis Institute of Dental Sciences and Research, Ferozepur, Punjab
India
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/jcd.jcd_261_21
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Aim: The aim of this study was to evaluate and compare the fracture resistance of inlay preparations restored with indirect lab composite, conventional and translucent monolithic zirconia-based ceramics.
Materials and Methods: Fifty freshly extracted human maxillary premolars were selected for the study. Standardized inlay cavities were prepared and restored with indirect lab composite, conventional monolithic zirconia-based ceramic and translucent monolithic zirconia-based ceramic. After restoration each sample was subjected to axial compressive load with Universal testing machine. The force required to induce fracture was recorded in Newton (N).
Statistical Analysis Used: The data were analyzed using the one-way ANOVA test and Post hoc Bonferroni multiple comparison test.
Results: Results revealed that fracture resistance of prepared inlay cavities restored with conventional monolithic zirconia-based ceramics was found to be best followed by other groups. Group I > Group IV > Group V > Group III > Group II.
Conclusion: The fracture resistance of conventional monolithic zirconia-based ceramic inlays and translucent monolithic zirconia-based ceramic inlays were comparable with intact teeth but, indirect lab composite inlays showed lower fracture resistance than all.
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