Premium
Stability of Clinical and Radiographic Results After Guided Tissue Regeneration in Infrabony Defects
Author(s) -
Eickholz Peter,
Krigar DianaMaria,
Kim TiSun,
Reitmeir Peter,
Rawlinson Andrew
Publication year - 2007
Publication title -
journal of periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.036
H-Index - 156
eISSN - 1943-3670
pISSN - 0022-3492
DOI - 10.1902/jop.2007.060097
Subject(s) - medicine , dentistry , radiography , periodontitis , nuclear medicine , surgery
Background: The aim of this 5‐year follow‐up study was to evaluate clinically and radiographically the long‐term results after guided tissue regeneration (GTR) therapy of infrabony defects using non‐resorbable and bioabsorbable barriers. Methods: Thirty‐one patients with periodontitis and 50 infrabony defects that had been treated using GTR were recruited. Eleven defects were treated with non‐resorbable expanded polytetrafluoroethylene membranes and 39 defects with bioabsorbable barriers. At baseline and 6 and 60 ± 3 months after surgery, clinical parameters and standardized radiographs were obtained. During surgery and 60 ± 3 months thereafter, the distance from the cemento‐enamel junction to the base of the bony defect (vertical probing bone level [PBL‐V]) was measured. Bone gain was evaluated using digital subtraction radiography. Results: At 6 and 60 ± 3 months after GTR, there was a statistically significant ( P <0.001) reduction of probing depth (6 months: 4.31 ± 1.76 mm; 60 months: 3.95 ± 1.62 mm) and vertical clinical attachment level gains (CAL‐V) (6 months: 3.34 ± 1.66 mm; 60 months: 2.97 ± 1.53 mm). From 6 to 60 months after GTR, three infrabony defects exhibited CAL‐V loss >2 mm, and a small, statistically not significant mean CAL‐V loss of 0.39 ± 1.60 mm was observed. From baseline to 60 ± 3 months, a significant PBL‐V gain of 1.78 ± 2.67 mm ( P <0.001) and increase in bone density were observed ( P = 0.003). Conclusion: The CAL‐V gain achieved after GTR in infrabony defects using both non‐resorbable and bioabsorbable barriers was stable after 5 years in 47 of 50 defects.