A histologic evaluation of various stages of palatal healing following subepithelial connective tissue grafting procedures: a comparison of eight cases.

Abstract

BACKGROUND It is often necessary to procure tissue from the same area of the palate in cases where connective autogenous grafting procedures are warranted due to limitations caused by anatomical features. The purpose of this study was to determine whether the length of time between a first procurement and a second would have any bearing on the quality of tissue available for recipient sites. METHODS Eight patients requiring more than one grafting procedure underwent surgery at baseline and again at various intervals ranging from 6 weeks to 11 months. Specimens were taken from the palate and evaluated microscopically, and photographs were taken for purposes of visual comparison. RESULTS The 6.9- to 7.7-week specimens exhibited complete reepithelialization. The lamina propriae were composed of a cellular proliferation of fibroblasts with loosely arranged collagen deposition and an occasional thin vascular channel. However, remodeling of the wound appeared complete in the specimens removed at the 9-week interval and beyond. The lamina propria was, in general, composed of thick, dense, interlacing bundles of collagen. Small-caliber blood vessels were interspersed throughout the fibrous element. CONCLUSION Reharvesting of tissue performed earlier than at 9 weeks may result in poorer autogenous graft quality due to indications that remodeling of the connective tissue is still progressing and not as mature as specimens noted at weeks 9 to 47.

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@article{Soileau2006AHE, title={A histologic evaluation of various stages of palatal healing following subepithelial connective tissue grafting procedures: a comparison of eight cases.}, author={Kristi M Soileau and Robert B Brannon}, journal={Journal of periodontology}, year={2006}, volume={77 7}, pages={1267-73} }