Two Different Surgical Techniques for the Treatment of Multiple Gingival Recessions With Porcine Collagen Matrix

Two Different Surgical Techniques for the Treatment of Multiple Gingival Recessions With Porcine Collagen Matrix

Clinical Comparison Between Two Surgical Techniques for the Treatment of Multiple Gingival Recessions With Porcine Collagen Matrix

The gold standard for gingival recession treatment is the coronal repositioning of the flap associated with the subepithelial connective tissue graft. The porcine collagen matrix (PCR) has been used as a substitute for subepithelial connective tissue graft in periodontal plastic surgery and has achieved similar results. The PCR use has the advantage of avoiding possible pre and postoperative complications , as well as overcome the limitations presented by autograft . The different surgical techniques used for root coverage seek predictability and success . For this, besides the type of incision placements flap and graft are the most important because the healing benefits and outcome . The aim of this study is to compare two surgical techniques for root coverage and evaluate which one provides better clinical outcomes and less morbidity . 20 adults , nonsmoking patients , showing multiple bilateral gingival recessions , class I or II Miller located in canine, first and second premolars are selected. Both techniques use the PCR as a graft . However, in one Quadrant partial flap will be held together with relaxing incisions through an intrasulcular incision, PCR will be positioned 1 mm apical to the cementoenamel junction (CEJ) and the flap will be positioned 1 mm coronal CEJ. In the opposite quadrant periosteal envelope that does not use relaxing incisions, avoiding any scars, will be performed with the PCR. The clinical parameters (gingival recession height and width, keratinized tissue thickness and width) will be evaluated 2 weeks after basic periodontal therapy and after 6 and 12 months to surgical procedures..

Split Mouth clinical trial, comparing two different techniques. One side, the tunnel technique will be performed and on the other side, extended flap will be performed. Both surgical techniques will use Porcine Collagen Matrix.

The participants and the outcomes Assessor are masked about the surgical technique that was performed. The surgical technique ir randomized in accordance with the arch side of each patient, so the investigator will open a envelope just before starting the incisions to know which technique will be performed.

It Will be performed root coverage of multiple recessions using porcine collagen matrix with a tunnel Technique

It Will be performed root coverage of multiple recessions using porcine collagen matrix with a extended flap technique

Extended flap technique for root coverage for multiple gingival recessions, using porcine collagen matrix

Root Coverage is measured by the difference between Gingival Recession Hight at baseline and 12 months

Inclusion Criteria: -bilateral multiple gingival recession type Miller class I or II with at least one tooth with 3 mm of gingival recession height Exclusion Criteria: diabetics pregnant women chronic use of medication periodontitis smokers