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   Offical Journal of The Academy of Osseointegration

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Volume 35 , Issue 2
March/April 2015

Pages 179-189

The Use of a Xenogeneic Collagen Matrix at the Time of Implant Placement to Increase the Volume of Buccal Soft Tissue

Stuart J. Froum, DDS/Ismael Khouly, DDS, MS, PhD/Dennis P. Tarnow, DDS/Scott Froum, DDS/Edwin Rosenberg, DMD/Patricia Corby, DDS, MS/Wayne Kye, DDS/Nicolas Elian, DDS/Robert Schoor, DDS/Sang-Choon Cho, DDS

PMID: 25738338
DOI: 10.11607/prd.2226

The purpose of this study was to evaluate the efficacy of Mucograft (MG; a porcine-derived purified collagen membrane) to increase the thickness and height of the buccal soft tissue when placed at the time of implant placement in patients with thin or deficient keratinized tissue (KT). The primary endpoint of the study was the change in thickness and height of the buccal KT. Secondary endpoints included stability of the midbuccal soft tissue level; clinician rating of color, texture, and contour of treatment site; probing pocket depths (PPDs); assessment of satisfaction outcome; and patient assessment of pain/discomfort. Thirty-two patients were enrolled and 31 patients completed the study. There were no statistically significant (SS) differences between the MG and control groups for height measures. There was no SS difference for KT thickness (P = .117) between the groups at the final measurement (3 months postsurgery). However, there was an SS difference (P = .009) in favor of the MG group when comparing the difference in presurgical KT thickness to that 3 months postsurgery. Thus, MG was successful (compared to the control) in increasing the buccal KT. There were no SS differences between the groups for any of the other endpoints, including color, texture, contour, and pain assessment at any visit or successful outcome between the treatment group and the control. More cases and longer follow-up of implants placed with MG are needed to verify the results of this randomized prospective study.

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