Objective: The objective of this study is to evaluate the fracture resistance of newer restorative materials that could serve as an alternate to crown coverage.
Materials And Methods: Forty extracted human mandibular molar teeth were selected for this study and were divided into four groups ( = 10). All the teeth in the experimental groups (Group 2-4) were subjected to access cavity preparation with roughly 1.5 mm of tooth structure remaining throughout the circumference. Group 1: Intact teeth used as control. Group 2: Access cavities reinforced with biodentine. Group 3: Inner circumference of access cavities reinforced with polyethylene fiber and nano-hybrid composite. Group 4: Access cavities were reinforced with fiber reinforced composite. All the teeth were subjected to fracture resistance using universal testing machine.
Results: The results of the study were evaluated statistically using one-way ANOVA and Tukey test. Group 2 demonstrated the least mean values of fracture resistance and was significantly different from the control and other experimental groups. Statistically significant difference among Groups 1, 3, and 4 was not found.
Conclusion: Within the limitation of this study, it can be concluded that fiber reinforced composite and polyethylene fibers with nanohybrid composite could serve as an alternate to crown coverage.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5564247 | PMC |
| http://dx.doi.org/10.4103/0972-0707.212248 | DOI Listing |
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