[1] Currently, it is generally used to obtain root coverage following gingival recession, which was a later development by Burt Langer in the early 1980s.
Because the connective tissue for the graft is transplanted without the superficial epithelium from the donor site, it is termed subepithelial.
[1] Others, including Broome and Taggert[4] and Donn[5] also described the use of SECT grafts for increasing the zone of keratinized tissue.
Of the various ways of preparing the graft recipient site, Edel described using two vertical incisions, mesial and distal to the teeth at which the zone of keratinized tissue was intended to be widened.
Langer later described the SECT as a method by which to augment concavities and irregularities of the alveolar ridge following traumatic extractions, advanced periodontitis or developmental defects.