The aim of this study was to evaluate the efficacy of collagen membrane fixation on final outcome of peri-implant osseous defect.
This clinical study comprised 20 consecutively treated patients divided into two groups. Group 1 was treated with delayed endosseous implants aided by autologous bone chips on the surface of the dental implant with buccal bone defect and covered by tack screw collagen membrane fixation and platelet-rich fibrin. However, group 2 was treated using the same protocol without any mean of collagen membrane fixation. The wound healing time follow-up was in the range of 4 weeks and 0–12 months regarding marginal bone level assessment. Data were collected, tabulated, and statistically analyzed.
The wound healing time for group 1 (tack screw collagen membrane fixation) was significantly faster than in group 2 (nonfixed membrane group) at baseline and after 3 weeks. After 1 year of loading the mean marginal bone loss for group 1 and group 2, statistically significant differences were observed between the two groups.
In case of peri-implant bony defect with guided bone regeneration, it is recommended to use fixation pins/screws to fix collagen membranes.
Department of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, Al-Azhar University, Cairo, Egypt
Correspondence to Salem A. Waly, PhD, Department of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, Al-Azhar University, Cairo 41912, Egypt Tel: +20 966 5609 43242; e-mail: firstname.lastname@example.org
Received July 15, 2017
Accepted July 20, 2017