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Volume 18 , Issue 6
November/December 1998
Pages 573-585

Use of Biodegradable Polylactic Acid Barrier Materials in the Treatment of Grade II Periodontal Furcation Defects in Humans--Part I: A Multicenter Investigative Clinical Study

Vernino/Ringeisen/Wang/Derhalli/Rapley/Nechamkin/Brekke

PMID: 10321172
DOI: 10.11607/prd.00.0295

This study evaluated two bioresorbable polylactic acid barriers (Epi-Guide and Guidor) to determine if design differences were of therapeutic significance in the treatment of Grade II furcation defects in humans. Forty patients with bilaterally matched, Grade II furcation defects in maxillary or mandibular first or second molars were treated in a multicenter study. Comprehensive initial periodontal therapy, follwed by defect debridement and root preparation, preceded randomized membrane placement. Data collected from all three investigative centers were pooled and analyzed using an analysis of variance appropriate for a counterbalancing design. Both barrier types produced measurable improvements of clinical probing values. Barrier exposure scores taken through the eighth week postoperative revealed that Epi-Guide was less likely to become exposed than Guidor. The findings of this study, which was conducted over a 12-month period, demonstrated that Epi-Guide and Guidor were comparable as measured by clinical probing determinations.

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