Fracturestrength of veneers using different restorative material, s and techniques. In vitro study
Journal Title: IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) - Year 2018, Vol 17, Issue 11
Abstract
Aim of the study: The purpose of this study was to evaluate the fracture strength of the laminateveneers in maxillary anterior, fabricated from either composite (direct and indirect techniques) or ceramicCAD/CAM blocks. Materials and Methods: Forty sound human maxillary incisor teeth were used in this in vitro study. Teeth weredivided randomly into one control group and three experimental groups of ten teeth each; control group Group A: Restored withdirect composite veneer(IPSIMPRESS), Group B: Restored with indirect composite veneers (Tetric Ceram), Group C:Restored with zirconia CAD/CAM block. Standard preparations were done using Ceramic Veneer Set. Indirect laminate veneers were cemented with the Veneer Cement and all specimenswere stored in distilled water. The load was applied on theocclusal part of the veneer at 90˚tolong axis of the tooth using universal testingmachine. Results were analyzed with one-way ANOVA and LSD tests. Specimens were examined by stereomicroscope at a magnification of 20x to evaluate the mode of failure. Results: Control group showed higher mean of fracture strength with highly significant difference in comparison to the experimental groups (P<0.01). (Group C) showed higher mean of fracture strength with statistically significant difference in comparison to (Group A and Group B). On the other hand the difference between (Group A andGroup C) was statistically highly significant. Statistically non-significant difference was found among the twogroups restored with composite restoration. Conclusions: All veneers used in this study can be considered as acceptable treatment in the of choice in patients with normal biting force. Direct composite veneer is the most favorable technique in term of fracturestrength, while zirconia laminate veneers are least likely to fracture and most likely to completely debond.
Authors and Affiliations
Dr Anil K Tomer, Dr. Hysum Mushtaq, Dr. Leena Tomer, Dr Afnan Ajaz Raina, Dr Anila Krishna Saxena, Dr. Ayush Tyagi, Dr. Shivendra Ahlawat
Keywords
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- EP ID EP415477
- DOI 10.9790/0853-1711054247.
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