Combination treatment using decalcified freeze-dried bone allograft with guided tissue regeneration in human periodontal defects: Two case reports
The purpose of this paper is to illustrate the potential benefits achievable using the principles of GTR combined with the use of DFDBA. Two cases are presented to demonstrate the different indication of these procedures.
In case 1, a 17-year-old black woman was referred for treatment of tooth 46. At the initial examination, pocket-depth measurements ranged from 2 to 10 mm. Following placement of the graft material, the barrier membrane was positioned and sutured to completely cover the osseous defect and bone graft, overlapping the adjacent alveolar bone by 3 to 4 mm. Four months after surgery, probing depth associated with tooth 46 was significantly reduced when compared to presurgical measurements (2 mm versus 10 mm mesiofacially, 2 mm versus 9 mm mesiolingually, and 2 mm versus 6 mm lingually, respectively).
In case 2, a 59-year-old man was referred for placement of a dental implant in the area of tooth 43. A 10-mm Screw-Vent implant was placed with approximately 8 mm exposed facially. DFDBA was placed over the exposed implant surface and covered with a GTAM barrier. At six months, the implant was firm, with no mobility, and showed good indication of osseointegration. The results achieved in these cases demonstrate that regenerative surgical therapy, based on the principles of GTR, can be predictable and successful. New bone formation was achieved around both tooth structure and dental implant. [E.L.H.]
Uyeda, G.T., A.R.Vernino, and J.W. Brand, Int J Periodont Restor Dent, 14:355, 1994