Abstract
Peri-implant health should consist of adequate bone thickness, and a band of keratinized mucosa of minimal width and thickness to avoid recession of peri-implant mucosa. The purpose of this study is to compare free gingival graft (FGG) and subepithelial connective tissue graft (SCTG) to increase keratinized mucosa around dental implants. 13 patients with 27 peri-implant sites that exhibit a band of keratinized tissue of less than 2 mm received either free gingival graft (n=17) or subepithelial connective tissue graft (n=10) to increase peri-implant keratinized mucosa. The results showed that the mean width of keratinized mucosa for sites received FGG was presurgery (T0=0.38 ± 0.6 mm), postsurgery (T1=5.09 ± 1.95 mm), final prosthesis (T2=4.88 ± 2.06 mm), and sites received SCTG was presurgery (T0=1.3 ± 0.35 mm), postsurgery (T1=5.3 ± 1.27 mm), final prosthesis (T2=3.5 ± 1.03 mm). In conclusion, FGG showed better outcome than SCTG when attempting to increase peri-implant keratinized mucosa for maintenance of peri-implant mucosal health.
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