This study compared the gain of periodontal attachment after concomitant one-stage removal of bacterial biofilms and subgingival calculus with a two-stage procedure removing subgingival calculus 6 weeks after the initial removal of soft subgingival bacterial biofilms.
The concomitant removal of subgingival calculus and soft bacterial biofilms in a one-stage procedure might impair periodontal healing in deep infrabony pockets due to the mechanical disruption of demineralized bone sections at the bottom of periodontal lesions. This randomized controlled clinical trial therefore aims at comparing the resulting attachment gain 6 months after one-stage antiinfective periodontal therapy comprising the concomitant subgingival removal of soft bacterial biofilms and calculus with a two-stage approach removing subgingival calculus only 6 weeks after the initial removal of soft subgingival bacterial biofilms.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
44
Removal of subgingival bacterial biofilms and subgingival calculus from periodontal lesions
Dept. of Periodontology, University Hospital Wuerzburg
Würzburg, Germany
Change in Clinical Attachment Loss
Difference in millimeter (mm) in the distance between the cemento-enamel-junction and the probable bottom of the periodontal pocket recorded at baseline and at the end of the study in periodontal pockets with a baseline pocket depth ≥ 6 mm
Time frame: 168 days (24 weeks)
Change in Bleeding on Probing
Difference in the mean percentage of probed periodontal probing sites in teeth with initial pocket depth ≥ 6 mm displaying bleeding on probing between baseline and end of the study.
Time frame: 168 days (24 weeks)
Change in Probing Pocket Depth
Difference in probing pocket depth between baseline and end of study in teeth with a baseline periodontal probing pocket depth ≥ 6 mm
Time frame: 168 days (24 weeks)
Change in Gingival Index (GI)
Measuring the mean difference in Gingival Index (GI) scores between baseline and end of the study
Time frame: 168 days (24 weeks)
Change in Plaque Index
Measuring the difference in the extent of supragingival plaque coverage according to the criteria set by Silness and Loe between baseline and end of study
Time frame: 168 days (24 weeks)
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