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Volume 24 , Issue 1
January/February 2009

Pages 8187


Efficacy of Vascularized Periosteal Membranes in Providing Soft Tissue Closure at Grafted Human Maxillary Extraction Sites

Ronaldo B. Santana, DDS, MScD, DSc/Carolina M. L. de Mattos, DDS


PMID: 19344029

Purpose: Soft tissue closure is mandatory for optimal healing of extraction sites treated via guided bone regeneration. The objective of this study was to evaluate the efficacy of a flap design based on the extension of palatal tissues to obtain and maintain soft tissue coverage over grafted extraction sockets. Materials and Methods: Adult patients (n = 22) with at least two teeth indicated for extraction were treated. After atraumatic extraction, control sockets were filled with a composite graft (1:1) containing demineralized freeze-dried bone allografts and Bio-Oss. Experimental sockets were treated identically, except that an Atrisorb absorbable barrier membrane was also placed over the graft material before flap closure, which was obtained, in all sockets, by the coronal extension of a vascularized pedicle dissected from the periosteal aspect of the palate. Results: Primary tension-free wound closure was achieved at all treated sites. Exfoliation of the graft material during healing was not observed in either treatment group. High levels of soft tissue closure were maintained throughout the study period for both treatment groups, and membrane exposure was observed in only 7% of treated sites. Conclusion: On the basis of this study it appears that the reported technique was an adequate method of achieving and maintaining complete soft tissue coverage and promoting healing by primary intention in grafted extraction sockets in humans. Int J Oral Maxillofac Implants 2009;24:8187. Key words: bone graft, dental implants, guided bone regeneration


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