Document Detail


Enamel demineralization and bracket bond strength when etching with acid and /or Er:YAG laser.
MedLine Citation:
PMID:  22624760     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Background:  Enamel etching for brackets is usually done with phosphoric acid. Er:YAG lasers have been recently used for this purpose with conflicting results. The effects of lasers on tooth demineralization and the effects of different combinations of laser treatments and bonding agents were evaluated in this study. Methods:  The enamel contents of fluorine, calcium oxide and phosphorus pentoxide (P(2) O(5) ) were analysed using acid etching, laser treatment or both. The tensile bond strength of metallic and ceramic brackets using Transbond(®) XT and Fuji Ortho(®) LC were also tested, using acid etching, laser treatment or a combination of both. Results:  All treatments reduced the contents of fluorine, P(2) O(5) and calcium oxide, and acid reduced P(2) O(5) levels more than laser. The bond strength with laser was weaker than with acid, and stronger when combining both. When using laser, the best adhesive was the Fuji Ortho(®) LC. The combination of laser and acid produced the best results when using Transbond(®) XT. Conclusions:  The demineralization promoted by laser was lower than the one produced with acid. Laser treatment produced lower tensile stress strength than acid, but still enough to produce clinically efficient retention. The combination of laser and acid produced the best retention results.
Authors:
Mf Lasmar; Vgs Reher; R Lalloo; P Reher
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-4-4
Journal Detail:
Title:  Australian dental journal     Volume:  57     ISSN:  1834-7819     ISO Abbreviation:  -     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-5-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370612     Medline TA:  Aust Dent J     Country:  -    
Other Details:
Languages:  ENG     Pagination:  190-195     Citation Subset:  -    
Copyright Information:
© 2012 Australian Dental Association.
Affiliation:
Director of the Division of Sports Dentistry of the Brazilian Dental Association, Minas Gerais, Brazil. Former MSc student at UFMG, Belo Horizonte, Brazil. Lecturer in Dentistry, School of Dentistry and Oral Health, Griffith University, Gold Coast, Queensland, Australia. Professor for Rural, Remote and Indigenous Oral Health (Colgate Chair), School of Dentistry and Oral Health, Griffith University, Gold Coast, Queensland, Australia. Professor for Oral and Maxillofacial Surgery, Deputy Head of School, School of Dentistry and Oral Health, Griffith University, Gold Coast, Queensland, Australia.
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