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

University of Sao Paulo

Status: Unknown

Conditions: Xenograft Model; Gingival Recession; Gingival Recession, Generalized

Treatments: Procedure: extended fla technique for Root coverage with Porcine collagen Matrix; Procedure: tunnel technique for Root coverage with Porcine collagen Matrix

Study type: Interventional

Funder types: Other

Identifiers

NCT03619096

CAAE:65396417000005419

Details and patient eligibility

About

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..

Enrollment: 20 estimated patients

Sex: All

Ages: 18 to 70 years old

Volunteers: Accepts Healthy Volunteers

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

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Single Group Assignment

Masking: Triple Blind

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20 participants in 2 patient groups, including a placebo group

Test Group (tunnel technique)

Active Comparator group

Description:

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

Treatment:

Procedure: tunnel technique for Root coverage with Porcine collagen Matrix

Control Group (extended flap technique)

Placebo Comparator group

Description:

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

Treatment:

Procedure: extended fla technique for Root coverage with Porcine collagen Matrix