The Impact of Peri-implant Soft Tissue Properties on Patient-reported and Clinically Assessed Outcomes

"KM will be evaluated. The alveolar mucosa will be stained with Lugol's solution, by means of a cotton swab. A cotton roll will be soaked in the solution and gently applied on the mucosa around the implant. Since Lugol's solution is selective to the glycogen present in AM, the muco-gingival junction as the borderline between the blue-stained alveolar mucosa and KM can be easily identified.~A manual periodontal probe with 1 mm markings will measure the distance from the peri-implant margin and the muco-gingival junction.~Mucosal thickness (MT) will be measured after topical application of the anesthetics. MT will be evaluated inserting a 27G needle with a rubber stop 1 mm below the peri-implant mucosal margin at the mid-buccal aspect, until the abutment is engaged. The needle will be removed and the distance between the rubber stop and the point of the needle will be measured with a manual periodontal probe."