Two Techniques for Root Coverage With a Xenogeneic Collagen Matrix

Comparison of Two Surgical Techniques to Optimize the Treatment of Gingival Recessions Using a Gingival Graft Substitute.

Gingival recessions are often successfully treated by coronally advanced flap technique (CAF) associated with subepithelial connective tissue grafts (SCTG). Currently the xenogeneic collagen matrix (CM) has been used as a substitute for SCTG associated with CAF technique for root coverage. CAF technique was not developed for use with CM and has shown limited results when applied to the CM. The aim of this study was to compare and show the benefits of the extended flap technique (EFT) compared to CAF technique using CM for root coverage.

Inclusion Criteria:

• ages 25 to 50 years old
• bilateral gingival recession type Miller class I or II
• with 3 mm in height and less than 3mm of keratinized tissue
• non-molar teeth

Exclusion Criteria:

• diabetics
• pregnant women
• chronic use of medication
• periodontitis