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International Journal of Periodontics & Restorative Dentistry
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Int J Periodontics Restorative Dent 21 (2001), No. 2     15. Mar. 2001
Int J Periodontics Restorative Dent 21 (2001), No. 2  (15.03.2001)

Page 161-169


Clinical Evaluation of Anorganic Bovine Bone Xenograft with a Bioabsorbable Collagen Barrier in the Treatment of Molar Furcation Defects
Houser, Bruce E. / Mellonig, James T. / Brunsvold, Michael A. / Cochran, David L. / Meffert, Roland M. / Alder, Marden E.
The purpose of this study was to compare Bio-Oss (BO), an anorganic bovine bone xenograft, in combination with Bio-Gide (BG), a bioabsorbable collagen barrier, to open-flap debridement (OFD) surgery in human mandibular Class II furcation defects. A total of 31 furcations (18 treatment, 13 control) in 21 patients were treated. There was a statistically significant improvement in most clinical indices for the BO/BG group, with minimal improvement noted for the OFD group. Vertical probing depth reduction of 2.0 mm and horizontal probing depth reduction of 2.2 mm were noted for the BO/BG group, with 0.3 mm and 0.2 mm reductions, respectively, noted for OFD. Hard tissue measurements showed 2.0 mm of vertical furcation bone fill for BO/BG and 0.5 mm for OFD. The BO/BG group had 3.0 mm of horizontal furcation bone fill, and the OFD group had 0.9 mm. The BO/BG group had a defect resolution of 82.7%; 42.5% was noted for the OFD group. There was a statistically significant difference between BO/BG and OFD in all soft and hard tissue measurements with the exception of attachment level, recession, and alveolar crest resorption.