期刊
JOURNAL OF PERIODONTOLOGY
卷 81, 期 8, 页码 1108-1117出版社
AMER ACAD PERIODONTOLOGY
DOI: 10.1902/jop.2010.090698
关键词
Collagen; connective tissue; gingival recession; tissue regeneration; transplantation
资金
- Geistlich Pharma [10812-008]
Background: For root coverage therapy, the connective tissue graft (CTG) plus coronally advanced flap (CAF) is considered the gold standard therapy against which alternative therapies are generally compared. When evaluating these therapies, in addition to traditional measures of root coverage, subject-reported, qualitative measures of esthetics, pain, and overall preferences for alternative procedures should also be considered. This study determines if a xenogeneic collagen matrix (CM) with CAF might be as effective as CTG+CAF in the treatment of recession defects. Methods: This study was a single-masked, randomized, controlled, split-mouth study of dehiscence-type recession defects in contralateral sites; one defect received CTG+CAF and the other defect received CM+CAF. A total of 25 subjects (8 male, 17 female; mean age: 43.7 +/- 12.2 years) were evaluated at 6 months and 1 year. The primary efficacy endpoint was recession depth at 6 months. Secondary endpoints included traditional periodontal measures, such as width of keratinized tissue and percentage of root coverage. Subject-reported values of pain, discomfort, and esthetic satisfaction were also recorded. Results: At 6 months, recession depth was on average 0.52 mm for test sites and 0.10 mm for control sites. Recession depth change from baseline was statistically significant between test and control, with an average of 2.62 mm gained at test sites and 3.10 mm gained at control sites for a difference of 0.4 mm (P = 0.0062). At 1 year, test percentage of root coverage averaged 88.5%, and controls averaged 99.3% (P = 0.0313). Keratinized tissue width gains were equivalent for both therapies and averaged 1.34 mm for test sites and 1.26 mm for control sites (P = 0.9061). There were no statistically significant differences between subject-reported values for esthetic satisfaction, and subjects' assessments of pain and discomfort were also equivalent. Conclusion: When balanced with subject-reported esthetic values and compared to historical root coverage outcomes reported by other investigators, CM+CAF presents a viable alternative to CTG+CAF, without the morbidity of soft tissue graft harvest. J Periodontol 2010;81:1108-1117.
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