Article:

It has been shown that thin mucosal tissues may be an important factor in crestal bone loss etiology. Thus, it is possible that mucosal tissue thickening with allogenic membrane might reduce crestal bone loss. Purpose: The purpose of this study was to evaluate how implants with traditional connection maintain crestal bone level after soft tissue thickening with allogenic membrane. After 1-year follow-up, implants in group A had 1.65 1 0.08-mm bone loss mesially and 1.81 1 0.06 mm distally. Group B had 0.31 1 0.05 mm mesially and 0.34 1 0.05 mm distally. C group implants experienced bone loss of 0.44 1 0.06 mm mesially and 0.47 1 0.07 mm distally. Differences between A and B, and A and C were significant both mesially and distally, whereas differences between B and C were not significant mesially and distally