Shear bond strengths produced by composite and compomer light cured orthodontic adhesives.
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Date
1997-05Author
Rock, WP
Abdullah, MS
Type
ArticleLanguage
enMetadata
Show full item recordAbstract
OBJECTIVES:
To test the shear bond strengths obtained when orthodontic brackets were bonded ex vivo using a composite resin and a compomer orthodontic adhesive.
METHODS:
Specimens were tested in a special jig made to fit an Instron testing machine. After debonding, the adhesive remaining on bracket bases and enamel surfaces was mapped.
RESULTS:
Bond strengths ranged from 8 to 23 MPa with the composite resin producing higher strengths than the compomer for similar combinations of variables. Bond strength was increased by longer curing and a longer debond interval and was higher for brackets with mesh bases than undercut bases. More compomer remained on the enamel surface after debonding than did the composite resin.
CONCLUSION:
The compomer produced bond strengths within the range considered to be clinically acceptable in other studies. If it was clinically successful as an orthodontic adhesive a compomer would confer the advantage that fluoride release would help to minimize the onset of early caries around bonded brackets.
URI
http://hinari-gw.who.int/whalecomwww.ncbi.nlm.nih.gov/whalecom0/pubmed/9175353http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/30630
Citation
J Dent. 1997 May-Jul;25(3-4):243-9Publisher
University of Nairobi School of medicine,University of Nairobi School of Dentistry, University of Birmingham, UK
Collections
- Faculty of Health Sciences (FHS) [10377]