Gingival Recession, Gingival Recession, Generalized, Xenograft Model
Conditions
Keywords
Gingival recession, porcine collagen matrix, multiple gingival recessions, tunnel technique
Brief summary
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..
Interventions
PROCEDUREtunnel technique for Root coverage with Porcine collagen Matrix
Tunnel technique for root coverage for multiple gingival recessions, using porcine collagen matrix
PROCEDUREextended fla technique for Root coverage with Porcine collagen Matrix
Extended flap technique for root coverage for multiple gingival recessions, using porcine collagen matrix
Sponsors
University of Sao Paulo
Study design
Allocation
RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)
Masking description
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.
Intervention model description
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.
Eligibility
Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
Yes
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in gingival recession height (mm) | baseline, 6, and 12 months | Gingival recession height will be measured at baseline, 6 months, and 12 months. The primary outcome will be the change in gingival recession height from baseline to 12 months. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Keratinized tissue width and thickness (mm) | baseline, 6, and 12 months | Keratinized tissue width and thickness will be measured at baseline, 6 months, and 12 months. |
Countries
Brazil
Contacts
PRINCIPAL_INVESTIGATORArthur Belem Novaes JR
University of Sao Paulo
Outcome results
None listed