Guided Tissue Regeneration in Mucogingival Surgery

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Abstract
The use of expanded polytetrafluoroethylene (ePTFE) membranes in the treatment of mucogingival problems such as gingival recession, has been recently described. The major issues raised dealt with creating and maintaining space under the membrane and designing a flap that could be coronally positioned and at the same time capable of maintaining a good blood supply. The authors proposed the use of a trapezoidal flap and some technical space-making solutions, such as the use of a suturing technique and different metal structures to support the membranes. J Periodontol 1993; 64:1184–1191.