Evaluation of anti-calculus efficacy. An SEM method of evaluating the effectiveness of pyrophosphate dentifrice on calculus formation.
A double-blind, cross-over study was carried out to assess the anti-calculus effectiveness of a pyrophosphate containing cleaning gel. 2 groups of 30 heavy calculus formers were followed up comparing conventional clinical scoring systems (Volpe-Manhold-Index and Marginal-Line-Calculus-Index) and micromorphologic SEM criteria of calculus formation and inhibition. The results indicated that after a 3-month period, there was a significant reduction of calculus formation compared to a placebo gel. The proposed SEM calculus index (SEMCI) objectively reflects the reduction of supragingival calculus formation.
Department of Conservative Dentistry, Medical Academy Erfurt, Germany.
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Gaengler
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A
Kurbad
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Weinert
D000328:Adult; D003728:Dental Calculus / Q000473:pathology / Q000517:prevention & control*; D003802:Dentifrices; D011756:Diphosphates / Q000008:administration & dosage / Q000627:therapeutic use*; D004311:Double-Blind Method; D004338:Drug Combinations; D005260:Female; D005459:Fluorides / Q000008:administration & dosage / Q000627:therapeutic use*; D005782:Gels; D006801:Humans; D007180:Incisor / Q000648:ultrastructure; D008297:Male; D008855:Microscopy, Electron, Scanning; D008875:Middle Aged; D010710:Phosphates / Q000008:administration & dosage / Q000627:therapeutic use*; D010919:Placebos; D011188:Potassium / Q000008:administration & dosage / Q000627:therapeutic use*; D017680:Potassium Compounds; D016628:Replica Techniques
D003802:Dentifrices; D011756:Diphosphates; D004338:Drug Combinations; D005782:Gels; D010710:Phosphates; D010919:Placebos; D017680:Potassium Compounds; C012980:fluorophosphate; C035389:tetrapotassium pyrophosphate; C003319:sodium pyrophosphate; D005459:Fluorides; D011188:Potassium