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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Evaluation of a new bioabsorbable barrier for recession therapy: a feasibility study.

BACKGROUND: The objective of this study was to evaluate the feasibility of a new polylactic acid bioabsorbable barrier in the treatment of gingival recession. METHODS: Twenty patients with buccal recession defects (Miller class I, II, and III; mean recession: 4.0 +/- 1.2 mm; range: 2.0 to 6.8 mm) participated. After thorough scaling and root surface conditioning with 10% tetracycline-HCl, a trapezoidal mucoperiosteal flap was prepared. A customized barrier was applied to cover the defect. Barriers adhered directly to tooth and bone and no sutures were used. The barrier was subsequently covered by a coronally positioned flap. Assessments of probing depths were performed by means of a controlled-force electronic probe, and recession was determined on stone models with a digital caliper at baseline and 12 months following therapy. RESULTS: Eight barriers showed limited exposure (1 to 2 mm) with minimal signs of gingival inflammation between 2 and 6 weeks following surgery. Comparing baseline measurements with outcomes at 12 months, significant root coverage and probing attachment gain were observed (P <0.0001, paired t test). Mean gingival recession was reduced to 0.4 +/- 0.5 mm, corresponding to a mean root coverage of 91.9%, and overall attachment gains amounted to 4.2 mm. A significant gain of keratinized tissue was found (2.9 +/- 0.7 mm), and mean probing depths were slightly reduced from 2.2 to 1.7 mm. CONCLUSIONS: The results of this study indicate favorable outcomes after using a new bioabsorbable barrier material for root coverage in recession-type defects.[1]

References

  1. Evaluation of a new bioabsorbable barrier for recession therapy: a feasibility study. Jepsen, S., Heinz, B., Kermanie, M.A., Jepsen, K. J. Periodontol. (2000) [Pubmed]
 
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