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In 1957, the term of mucogingival surgery is introduced by Friedman in order to indicate “the surgical procedures aimed to preserve keratinized gingival tissue, remove aberrant frenulum or muscle attachments, and increase vestibular depth” (1). During the following years the promotion of periodontal health and the improvement of patient’s aesthetic become mucogingival surgery’s targets together with the preservation or creation of keratinized gingival tissue (2). However, only in 2012 Zucchelli introduced a more complete definition, including among the objectives of mucogingival surgery also the increased gingival height and thickness around prosthetic elements or implants (3). In general there were two schools of thought: the first, subsequently denied, believed the presence of a sufficient keratinized gingiva is necessary for the periodontal health Review Article

The use of a xenogenic collagen matrix (Mucograft®) in the treatment of the implant site: a literature review