Application of a new technique for lingual floor deepening associated with free gingival graft before rehabilitation with full arch hybrid prosthesis. Case report.

Abstract

This study reports a clinical case using a modified surgical approach for the deepening of the lingual floor combined with a free gingival graft (FGG). The aim was to optimize peri-implant soft tissue conditions in an edentulous mandibular patient, facilitating the placement of a full-arch implant-supported prosthesis. The importance of this study lies in the scarcity of publications addressing interventions for lingual floor deepening, especially in cases with high muscle insertions and lack of keratinized mucosa. The technique was applied to a 76-year-old patient who underwent tooth extractions, placement of Morse taper implants, and surgery with grafts harvested from the palate. The procedure increased the depth of the lingual sulcus and promoted the formation of keratinized mucosa around the implants, enhancing soft tissue stability. After healing, there was an average gain of 4 mm in height and 3 mm in thickness of the mucosa, improving lingual floor insertion and prosthesis adaptation. The patient reported greater functional comfort and ease of hygiene. It is concluded that the association between lingual floor deepening and FGG is effective in modifying soft tissues, promoting greater stability and longevity for implant-supported rehabilitation.