★ ★
HOME    mypage        Japanese    Academic Library Association of Niigata    Feedback  

新潟県地域共同リポジトリ >
The Nippon Dental University School of Life Dentistry at Niigata >
10 学術雑誌論文 = Journal Article >
10 査読済論文 = Postprint >


Files in This Item:

File Description SizeFormat
Abe_99(1)_83-87_a.pdf278KbAdobe PDF
Title :Effects of tooth bleaching on shear bond strength of brackets rebonded with a self-etching adhesive system
Authors :Abe, Ryota
Endo, Toshiya
Shimooka, Shohachi
Publisher :Springer
Issue Date :Jan-2011
Journal Title :Odontology : Official journal of the Society of the Nippon Dental University
Volume :99
Issue :1
Start Page :83
End Page :87
ISSN :1618-1247
Abstract :The purpose of this study was to ascertain the effects of tooth bleaching on the shear bond strength of orthodontic brackets rebonded with a self-etching adhesive system. A total of 39 premolars were collected and divided into three equal groups: in group 1 bracket bonding was performed without bleaching treatment; Specimens in group 2 were bonded immediately after bleaching; and group 3 teeth were bleached, then immersed in artificial saliva and left for 7 days before bonding. The shear bond strength was measured, with the bonding/debonding procedures repeated once after the first debonding, and the bracket/adhesive failure modes were evaluated by the adhesive remnant index after each debonding. Excepting the mean shear bond strength for group 2 after the first debonding, the overall mean values reached the minimum clinical requirement of 6MPa. The mean values at the first and second debondings were significantly higher in groups 1 and 3 than in group 2. Between groups 1 and 3, significant differences were noted at the first debonding, but not at the second debonding. Group 2 showed significant differences in mean shear bond strength between the first and second debondings. Bond failure at the enamel-adhesive interface occurred more frequently in group 2 than in groups 1 and 3 after the first debonding. The bracket-rebonding procedure can recover the reduced shear bond strength caused by immediate bonding after bleaching to a clinically acceptable level, but not to the prebleaching level.
Keywords :Tooth bleaching
Shear bond strength
Orthodontic bracket
Self-etching adhesive system
Type Local :Journal Article
Language :eng
URI :http://hdl.handle.net/10623/28381
Appears in Collections:10 査読済論文 = Postprint

Please use this identifier to cite or link to this item: http://hdl.handle.net/10623/28381

・The copyright of the materials in this repository belongs to the authors or the publishers (academic societies).

・In the case of journal articles, this repository's version might be slightly different in layout and words from the published version.

・Displayed or downloaded materials can only be used for personal use, quotation, etc. as is prescribed in Copyright Act.