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ORIGINAL RESEARCH Table of Contents   
Year : 2010  |  Volume : 21  |  Issue : 4  |  Page : 557-563
Comparison of the regenerative potential of an allograft used alone and that in conjunction with an immunosuppressive drug in the treatment of human periodontal infrabony defects: A clinical and radiological study

1 Department of Periodontology, National Dental College and Hospital, Derabassi, India
2 Department of Conservative Dentistry and Endodontics, National Dental College and Hospital, Derabassi, India
3 Department of Periodontology, Surendera Dental College, Shri Ganganager, Rajasthan, India
4 Department of Periodontology, Seema Dental College, Rishikesh, India

Correspondence Address:
Shivani Dhawan
Department of Periodontology, National Dental College and Hospital, Derabassi
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0970-9290.74220

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Background: Experimentation confirmed the conclusion that bone allografts, like other tissue and organ allografts, are immunogenic. These immune responses cause resorption of allograft, thus lowering the bone formation capacity of the graft. An attempt has been made in this study to prevent immune reactions and achieve enhanced regeneration of allograft-demineralized freeze-dried bone matrix by incorporating it with an immunosuppressive drug Cyclosporine-A (CsA) in the treatment of human periodontal infrabony defects. Materials and Methods: Fifteen patients showing clinical evidence of almost bilateral infrabony defects requiring bone grafting procedures were selected. In each patient, the infrabony defect of one side of the arch was designated as Group A (control site) and the infrabony defect of the contralateral side of the same arch was designated as Group B (test site). Results: On comparative evaluation of the two groups (by Student t-test), the mean values of reduction in probing depth (P=0.81 NS ) and gain in clinical attachment level (P=1.00 NS ) of Group B were found to be greater than that of Group-A, but the differences were statistically non-significant. The mean linear bone fill (P=0.010 ** ) of Group B was also detected to be higher than that of Group A, and the difference was found to be statistically significant. Conclusion: Increase in linear bone fill in Group B signifies the role of CsA in augmenting the regenerative potential of allograft by eliminating immune reactions.

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