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document
Open flap debridement with or without intentional cementum removal : a 4-month follow-up . OBJECTIVES The aim of this study was to investigate the influence of cementum removal on periodontal repair . MATERIAL AND METHODS Forty subjects with chronic periodontitis and presenting , at least , two proximal sites in anterior teeth ( upper or lower ) with probing depth > or =5 mm were selected . After oral hygiene instructions and ultrasonic supragingival instrumentation , the subjects were randomly assigned for one of the following groups : CIC , scaled with Gracey curettes ; CIUS , scaled with ultrasonic device ; CDC , calculus deattachment with Gracey curettes and brushing with saline solution ; and CDUS , calculus deattachment with ultrasonic device and brushing with saline solution . Full-thickness flaps were reflected and the instrumentation was performed with a clinical microscope . Probing depth ( PD ) , relative gingival margin level ( RGML ) and relative attachment level ( RAL ) were registered at five experimental periods : baseline and 30 , 60 , 90 and 120 days postoperative . RESULTS All the approaches were able to markedly reduce the PD values from the baseline to the other evaluation periods ( p < 0.0001 ) . The increase in RGML values was statistically significant only for the CDUS group . There were no statistically significant differences between the baseline and postoperative values in all groups for the RAL changes . The changes in RAL were statistically significant only among the groups CDC and CDUS ( p < 0.0001 ) . CONCLUSION The conventional scaling and root planing and the calculus deattachment were effective in reducing the probing depth values , regardless of the instrumentation method .
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Intervention_Surgical
Open flap debridement with or without intentional cementum removal :
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Intervention_Surgical
cementum removal on periodontal repair .
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Intervention_Surgical
CIC , scaled with Gracey curettes ; CIUS , scaled with ultrasonic device
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Intervention_Surgical
CDC , calculus deattachment with Gracey curettes and brushing with saline solution
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Intervention_Surgical
CDUS , calculus deattachment with ultrasonic device and brushing with saline solution
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Intervention_Surgical
CDUS
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Intervention_Surgical
CDC
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Intervention_Surgical
CDUS
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Intervention_Surgical
conventional scaling and root planing and the calculus deattachment
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Outcome_Other
Probing depth ( PD ) , relative gingival margin level ( RGML ) and relative attachment level ( RAL )
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Outcome_Other
RGML values
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Outcome_Other
RAL changes .
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Outcome_Other
RAL
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Participant_Condition
Open flap debridement
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Participant_Condition
periodontal repair
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Participant_Sample-size
Forty
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Participant_Condition
chronic periodontitis
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Participant_Condition
presenting , at least , two proximal sites in anterior teeth ( upper or lower ) with probing depth > or =5 mm