Document Detail


Comparing bond strengths of brackets on primary teeth with 3 different primers.
MedLine Citation:
PMID:  20483014     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: The purposes of this study were to: (1) examine the shear bond strengths (SBSs) of orthodontic brackets bonded to primary teeth with conventional, self-etching, and moisture-insensitive primers; and (2) evaluate the mode of bracket failure. METHODS: Seventy-eight human primary teeth were divided equally into 6 groups: (1) the enamel surface was etched, and a conventional primer was applied under dry conditions; (2) the enamel surface was dried, and a self-etching primer was applied; (3) the enamel surface was etched, and a moisture-insensitive primer was applied under dry conditions; (4-6) the same adhesives were used as those in groups 1 to 3, but before priming, each tooth was moistened. Metal brackets were bonded with adhesive. SBSs were measured using a universal testing machine, and the bracket/adhesive failure modes were evaluated with the adhesive remnant index. RESULTS: A notable drop in bond strength and a high incidence of bond failure at the enamel-adhesive interface were found in group 4. There was no significant difference in mean SBSs among the other groups. CONCLUSION: These adhesive systems under specific conditions enable us to use a primary tooth in the sectional bracket appliance as the anchor tooth, thus helping improve the outcome of early treatment for malocclusion.
Authors:
Rieko Ozoe-Ishida; Toshiya Endo; Shohachi Shimooka
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Pediatric dentistry     Volume:  32     ISSN:  0164-1263     ISO Abbreviation:  Pediatr Dent     Publication Date:    2010 Mar-Apr
Date Detail:
Created Date:  2010-05-20     Completed Date:  2010-06-10     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7909102     Medline TA:  Pediatr Dent     Country:  United States    
Other Details:
Languages:  eng     Pagination:  118-22     Citation Subset:  D; IM    
Affiliation:
Department of Orthodontic Dentistry, The Nippon Dental University School of Life Dentistry, Niigata, Japan. lieko@ngt.ndu.ac.jp
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MeSH Terms
Descriptor/Qualifier:
Acid Etching, Dental / methods
Curing Lights, Dental
Dental Alloys / chemistry
Dental Bonding / methods*
Dental Enamel / ultrastructure
Dental Stress Analysis / instrumentation
Ethanol / chemistry
Humans
Materials Testing
Methacrylates / chemistry
Orthodontic Brackets*
Phosphoric Acids / chemistry
Resin Cements / chemistry*
Shear Strength
Stress, Mechanical
Surface Properties
Tooth, Deciduous / ultrastructure*
Water / chemistry
Chemical
Reg. No./Substance:
0/Dental Alloys; 0/Methacrylates; 0/Phosphoric Acids; 0/Resin Cements; 0/Transbond Plus Self-Etching Primer; 0/Transbond XT; 0/Transbond moisture-insensitive primer; 64-17-5/Ethanol; 7664-38-2/phosphoric acid; 7732-18-5/Water

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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