In non-implant edentulous patients reduction of height and width of residual alveolar ridge and reduced attached KT compromise the denture-bearing area unambiguously leading to decrease in full denture stability and retention. Furthermore, in implant edentulous patients insufficient KT is associated with increased plaque accumulation, tissue inflammation, soft tissue recession, marginal bone loss and increased prevalence of peri-implantitis. The present study aimed to evaluate keratinized tissue gain and the wound contraction rate between apically positioned flap without and with free gingival graft strip over a 6-month follow up period. This research was designed as split mouth controlled clinical study included 17 patients having edentulous upper jaw with reduced width of keratinized tissue ( ≤ 4mm measured from middle of the crest to the buccal mucogingival junction or ≤ 2mm from occluso-buccal edge of the alveolar ridge to the mucogingival junction). In each patient, both surgical techniques, apically positioned flap without and with free gingival graft strip, were applied simultaneously. The change of keratinized tissue width and wound contraction rate were measured 30, 60 , 90 and 180 days after surgery
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Wound contraction rate
Timeframe: From enrollment to the 180 day