Different surgical techniques have been proposed for root coverage, showing varying results especially in areas of deep recessions. The aim of this study is to evaluate the effectiveness of the newly forming bone technique (NFB)as an alternative treatment for Miller class I or II deep recessions, requiring regeneration of lost periodontal tissues. Sample should be comprised of patients aged 18-45 years, both genders, presenting at least one site with marginal tissue recession \>4mm. Patients will be randomly assigned to either one of the groups, based on treatment technique: newly forming bone (NFB) or subepithelial connective tissue graft (SCTG). Clinical examinations will be performed by a single blinded examiner at baseline, 1, 3, 6 and 9 months after surgery. Intra-group analysis will be performed by one way analysis of variance for repeated measures. Inter-group analysis will be performed by unpaired t-test for each of evaluation periods.
Both gender patients presenting Miller class I or II recession defects \>4mm were selected. Patients were randomly assigned to treatment groups: newly forming bone graft (NFBG) or subepithelial connective tissue graft (SCT). Patients were treated in the period of February 2008 and March 2008 and monitored during 9 months.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
15
A granulation tissue will be obtained 21-25 days after the creation of an alveolar socket and grafted to receptor site.
A subepithelial connective tissue graft will be used for the treatment of Miller class I or II deep recessions.
School of Dentistry at Bauru-USP, Discipline of Periodontics
Bauru, São Paulo, Brazil
Percentage of Root Coverage
Percentage of root coverage determined by: \[area covered\]/\[total area to be covered\] x 100 (in %)
Time frame: Baseline, 9 months post-operatively
Gain of Clinical Attachment Level
Investigation of clinical attachment level, probing depth and reduction of recession depth
Time frame: 9 months post-operatively
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