title: A three-year clinical trial using a glass ionomer cement for the bonding of orthodontic brackets.
abstract: Recent clinical studies measuring orthodontic bracket failure, when using glass ionomer cement as an adhesive, have reported a wide range of percentages of bracket failure. The present study recorded bracket failure over a 3-year period, longer than had been previously measured. Seventeen participants were randomly assigned to one of two treatment groups, either using glass ionomer cement or composite resin for bonding. In each group, brackets were bonded to incisors, canines, and premolars. Bracket failure was measured over the duration of comprehensive orthodontic treatment for all participants. Brackets bonded with the glass ionomer cement were more likely to fail (log-rank test; P < or = 0.022). This difference was clinically significant. At the present time, the disadvantage of extra bracket failures appears to outweigh potential advantages when considering glass ionomer cement for the routine bonding of orthodontic brackets.
authors.affiliation: Dept. of Dental Public Health Sciences Warren G. Magnuson Health Science Center, Seattle, WA 98195-9950, USA.
authors.forename: J R
authors.initials: JR
authors.lastname: Miller
authors.forename: L
authors.initials: L
authors.lastname: Mancl
authors.forename: G
authors.initials: G
authors.lastname: Arbuckle
authors.forename: J
authors.initials: J
authors.lastname: Baldwin
authors.forename: R W
authors.initials: RW
authors.lastname: Phillips
mesh_terms: D000269:Adhesives / Q000737:chemistry; D000293:Adolescent; D001641:Bicuspid; D002648:Child; D003188:Composite Resins / Q000737:chemistry; D003481:Cuspid; D001840:Dental Bonding; D003738:Dental Cements / Q000737:chemistry; D004868:Equipment Failure; D005260:Female; D005899:Glass Ionomer Cements / Q000737:chemistry; D006801:Humans; D007180:Incisor; D008297:Male; D008298:Maleates / Q000737:chemistry; D016910:Orthodontic Brackets; D019279:Resin Cements; D013997:Time Factors
chemical_list: D000269:Adhesives; D003188:Composite Resins; D003738:Dental Cements; D005899:Glass Ionomer Cements; D008298:Maleates; C097531:Rely a Bond system; D019279:Resin Cements; C040964:Ketac-Fil