Three-dimensional measurement of enamel loss caused by bonding and debonding of orthodontic brackets.
A mechanical computerized three-dimensional scanner with a resolution of 1 micron was used to assess loss of enamel caused by orthodontic bonding and debonding. A total of 2646 measurements was performed on six human premolars. The results showed an average loss of enamel of 7.4 microns. The range was between 1 and 52 microns, which may account for discrepancies with earlier studies that measured only a few points per tooth surface.
van Waes
H
H
Clinic for Orthodontics and Pediatric Dentistry, University of Zürich, Switzerland.
Matter
T
T
Krejci
I
I
D000134:Acid Etching, Dental / Q000009:adverse effects; D001641:Bicuspid / Q000648:ultrastructure; D017438:Bisphenol A-Glycidyl Methacrylate / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry; D001840:Dental Bonding / Q000009:adverse effects*; D017005:Dental Debonding / Q000009:adverse effects*; D003743:Dental Enamel / Q000648:ultrastructure*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008855:Microscopy, Electron, Scanning; D016910:Orthodontic Brackets / Q000009:adverse effects; D010756:Phosphoric Acids / Q000008:administration & dosage; D014072:Tooth Abrasion / Q000209:etiology*
D003188:Composite Resins; D010756:Phosphoric Acids; D017438:Bisphenol A-Glycidyl Methacrylate