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PERIO - Periodontal Practice Today
PERIO - Periodontal Practice Today 3 (2006), No. 2     15. June 2006
PERIO - Periodontal Practice Today 3 (2006), No. 2  (15.06.2006)

Page 79-86

Long-term Clinical Outcome after Reconstruction of Periodontal Defects using a Bovine-Derived Xenograft: a Retrospective Cohort Study
Tietmann, Christina/Bröseler, Frank
The present retrospective study evaluates the long-term results of reconstructive periodontal surgery using a bovine-derived bone mineral with or without a bio-resorbable collagen membrane. Teeth (241) in 54 patients were treated. Treatment was performed regardless of the patients' genetic predisposition, medical status or social habits. The patients had to follow a strict oral hygiene programme prior to periodontal surgery. One year after treatment, an overall reduction of the mean pocket probing depth (PPD) of 2.69 mm on average (from 6.88 ± 1.89 mm to 4.19 ± 1.40 mm) and an increase in clinical attachment level (CAL) of 3.14 mm on average (from 8.56 ± 2.39 mm to 5.42 ± 1.50 mm) could be shown. At two years from baseline, no statistical differences in PPD reduction were found compared to the one year's data. Within the limits of the present study, it can be concluded that periodontal surgical therapy by the use of bovine-derived bone mineral with or without a bio-resorbable collagen membrane in combination with a strict oral hygiene program results in significantly high PPD reduction and CAL gain. Thus this treatment appears to be a suitable treatment for severe periodontal defects, leading to predictable and stable results.

Keywords: Alveolar infrabony defects, deproteinised bovine-derived xenograft, collagen membrane, periodontal regeneration, clinical attachment level gain, pocket probing depth reduction