Özet:

Objective: The aim of this study was to evaluate clinical effects of quadrant-wise non-surgical periodontal treatment in patients with stage-III grade-B and grade-C periodontitis. Methods: Forty-five non-smoker individuals who were systemically healthy, including 15 peri- odontally healthy, 15 stage-III grade-B periodontitis participant, and 15 stage-III grade-C peri- odontitis participant, were involved in this study. At baseline, plaque index, gingival index, probing depth, clinical attachment level, and bleeding on probing were evaluated for all participants, and in periodontitis groups, probing depth measurements were categorized as intermediate (4-6 mm) and deep (>6 mm), and the percentages of all categorized probing depths were calcu- lated. Quadrant-wise non-surgical periodontal treatment was performed in both periodontitis groups, and clinical measurements were performed again 1 and 3 months after quadrant-wise non-surgical periodontal treatment. Results: At baseline, periodontitis was higher in stage-III grade-C group than stage-III grade-B group (P < .05), whereas plaque index, gingival index, bleeding on probing, and clinical attach- ment level were similar between 2 groups (P > .05). All clinical parameters improved from base- line to 1 and 3 months in all periodontitis groups (P > .05). The reduction of percentage of the regions with probing depth of 4-6 mm from baseline to 3 months was higher in stage-III grade-B group than stage-III grade-C group (P < .05). As compared to the stage-III grade-B group at 1 and 3 months, the percentage of sites with probing depth ≥ 5 mm and BOP+(%) was higher in the stage-III grade-C group (P < .05). Conclusion: According to residual probing depth and deep periodontal pockets, the clinical response of quadrant-wise non-surgical periodontal treatment was superior in stage-III grade-B periodontitis group than stage-III grade-C periodontitis group, and there was a need for peri- odontal surgical treatment after quadrant-wise non-surgical periodontal treatment in the stage- III grade-C periodontitis group Keywords: Dental scaling, periodontitis, root planing

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