title: [Changes in the enamel surface after calculus removal].
abstract: A clinical trial examined the effect of calculus removal on the enamel surface using a Gracey curette 5/6, an ultrasound unit, and three air scalers with five different tips, in terms of the rate of surface lesions and the extent and depth of the defects. A total of 140 teeth were copied to assess and measure the surface lesions. The hand-held instrument did not damage the tooth surface. For calculus removal with automatic instruments surface lesions were observed to be a function of the type of equipment and the tip configuration used, with sharp-edged instruments causing the more severe destruction. Therefore automatic calculus removal instruments should not be used for routine tooth cleaning. They should be reserved for first-time removal of old, hard, and very tough calculus.
authors.forename: H C
authors.initials: HC
authors.lastname: Plagmann
authors.forename: M
authors.initials: M
authors.lastname: Wartenberg
authors.forename: T
authors.initials: T
authors.lastname: Kocher
mesh_terms: D000328:Adult; D000368:Aged; D003728:Dental Calculus / Q000628:therapy*; D003743:Dental Enamel / Q000473:pathology*; D003754:Dental High-Speed Equipment / Q000009:adverse effects*; D012534:Dental Scaling / Q000009:adverse effects* / Q000295:instrumentation; D005260:Female; D006801:Humans; D008297:Male; D008855:Microscopy, Electron, Scanning; D008875:Middle Aged; D013499:Surface Properties; D014464:Ultrasonic Therapy / Q000009:adverse effects
vernacular_title: Schmelzoberflächenveränderungen nach Zahnsteinentfernung.