Abstract
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.
MeSH terms
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Acid Etching, Dental / adverse effects
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Bicuspid / ultrastructure
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Bisphenol A-Glycidyl Methacrylate / chemistry
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Composite Resins / chemistry
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Dental Bonding / adverse effects*
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Dental Debonding / adverse effects*
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Dental Enamel / ultrastructure*
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Humans
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Image Processing, Computer-Assisted
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Microscopy, Electron, Scanning
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Orthodontic Brackets* / adverse effects
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Phosphoric Acids / administration & dosage
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Tooth Abrasion / etiology*
Substances
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Composite Resins
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Phosphoric Acids
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Bisphenol A-Glycidyl Methacrylate