Abstract
The primary goal was to compare the amount of keratinized tissue width (KTW) gain after free gingival graft (FGG) procedures around implants and teeth after 6 and 12months of healing. Patients with mucogingival defects (<2mm of KT) around teeth and implants underwent a gingival augmentation procedure by means of a FGG. Clinical measurements were performed with an individual stent to determine keratinized tissue width (KTW), length (KTL), graft shrinkage (GS) and gingival margin position (GMP) at 2weeks, 6weeks, 3months, 6months and 12months after surgery. Twenty-nine patients (35 sites) participated in this prospective study. After surgery, KTW decreased and GS increased significantly in both treatment groups during the whole follow-up period, but the biggest changes were observed at 6weeks. When comparing both treatment groups, implant sites showed significantly more reduction in KTW and more GS. Thus, at 12months, KTW and GS reduced 2.03±2.1mm and 36.74±38.2% in the teeth group and 2.91±12.03mm and 61.8±36.25% around implants, respectively. A significantly greater reduction in KTW and more GS might be expected at implant sites.
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