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Year : 2014  |  Volume : 3  |  Issue : 2  |  Page : 75-79

Human gingival response to methacrylate and silorane-based composite restoratives

1 Department of Restorative Dental Sciences, King Khalid University, College of Dentistry, Abha, Saudi Arabia
2 Department of Preventive Dental Sciences, King Khalid University, College of Dentistry, Abha, Saudi Arabia; Department of Oral Medicine and Periodontology, Faculty of Dentistry, Suez Canal University, Ismailia, Egypt
3 Department of Restorative Dental Sciences, King Khalid University, College of Dentistry, Abha Saudi Arabia; Department of Conservative Dentistry, Mansoura University, Mansoura, Egypt
4 Department of Oral Pathology, Mansoura University, Mansoura, Egypt
5 Department of Diagnostic Sciences, Texas A and M University, Baylor College of Dentistry, Dallas, Texas, USA

Correspondence Address:
Khalid M Abdelaziz
Department of Restorative Dental Sciences, College of Dentistry, King Khalid University, PO Box 3263, Abha 61471, Saudi Arabia

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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2278-0521.134853

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Objective: The clinical acceptance of restorative material normally depends on its biological safety. This in vivo study considered the clinical and histological gingival response to methacrylate and silorane-based composites. Materials and Methods: Sixty patients with sub-gingival tooth defects were treated in two groups (n = 30) with Tetric N-Ceram and Filtek P90 composite restoratives with minimal finishing procedures. An additional 10 patients with pre-existing gingival inflammation and no cervical tooth defects served as control. The gingiva in contact was assessed clinically and histologically at 2, 4 and 8 week intervals. Results: A significant time-dependent gingival response was noted in both test groups (t-test, P < 0.05). Inflammatory cell infiltrates, cellular degeneration, epithelial hyperplasia, keratinization, and erosion were found in selected gingival biopsies. Conclusion: The results confirmed that minimally finished subgingival composite restorations contribute to significant histopathological changes to the contacting gingival tissues. However, the silorane-based composite elicited less severe gingival inflammatory symptoms in comparison to the methacrylate-based resin system.

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