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Effect of surgical and non‐surgical periodontal treatment on periodontal status and subgingival microbiota
Author(s) -
Pedrazzoli V.,
Kilian M.,
Karring T.,
Kirkegaard E.
Publication year - 1991
Publication title -
journal of clinical periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.456
H-Index - 151
eISSN - 1600-051X
pISSN - 0303-6979
DOI - 10.1111/j.1600-051x.1991.tb00096.x
Subject(s) - scaling and root planing , dentistry , medicine , gingival and periodontal pocket , periodontitis , bleeding on probing , bevel , quadrant (abdomen) , bacteroides , periodontal surgery , chronic periodontitis , orthodontics , surgery , biology , structural engineering , bacteria , engineering , genetics
Abstract The purpose of this study was to evaluate, on a short‐term basis, the clinical and microbiological effects of a single course of scaling and root planing as compared with those obtained by flap surgery in patients with moderate to advanced periodontitis. 11 patients participated in the study. Using a split‐mouth design, one quadrant of the mouth was treated with reverse bevel flap surgery, whereas the contralateral one was subjected to a single course of scaling and root planing. 2 approximal sites on single‐rooted teeth with a pocket depth ≥ 5 mm were monitored clinically and microbiologically for 16 weeks after active treatment. Both techniques resulted in a gain of probeable attachment levels, a reduction in bleeding on probing and a reduced mean pocket depth, although 31.2% of the sites in the scaling and root planing group still had 6–7 mm deep pockets at 8 and 16 weeks after treatment. Both techniques reduced median relative proportions and frequencies of detection of black‐pigmented Bacteroides species. A highly statistically significant increase ( p < 0.01) in median proportions of oral streptococci was recorded only for surgery within the 1 st month post‐operatively. No correlation was found between residual pocket depth and any of the microbiological parameters considered in the study, suggesting that residual pocket depth does not exert a significant influence on bacterial subgingival recolonisation after therapy. The results from this study suggest that surgery can be as effective as scaling and root planing in favoring the establishment of micro‐organisms compatible with periodontal health, although this effect is limited to the 1st month after therapy.