Document Detail

Clinical evaluation of bracket bonding using two different polymerization sources.
MedLine Citation:
PMID:  18298204     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To comparatively assess clinical failure rate of brackets cured with two different photopolymerization sources after nine months of orthodontic treatment. MATERIALS AND METHODS: The sample of this study comprised 30 patients who received comprehensive orthodontic treatment by means of fixed appliances. Using the same adhesive, 600 stainless steel brackets were directly bonded and light cured for 10 seconds with the light-emitting diode (LED) lamp or for 20 seconds with the conventional halogen lamp. A split-mouth design randomly alternated from patient to patient was applied. Failure rates were recorded for nine months and analyzed with Pearson chi2 test, and log-rank test at alpha = .05 level of significance. RESULTS: The overall failure rate recorded with the halogen unit (3.33%) was not significantly different from the failure rate for the LED lamp (5.00%). Significantly more failures were found in boys compared with girls, in the mandibular dental arch compared with the maxillary arch, and in posterior segments compared with anterior segments. However, no significant difference was found between the right and left segments. CONCLUSION: Both light-curing units showed sufficiently low bond failure rates. LED curing units are an advantageous alternative to conventional halogen sources in orthodontics because they enable a reduced chair-time bonding procedure without significantly affecting bond failure rate.
Nikolaos S Koupis; Theodore Eliades; Athanasios E Athanasiou
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Publication Detail:
Type:  Comparative Study; Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  The Angle orthodontist     Volume:  78     ISSN:  0003-3219     ISO Abbreviation:  Angle Orthod     Publication Date:  2008 Sep 
Date Detail:
Created Date:  2008-02-26     Completed Date:  2008-11-18     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370550     Medline TA:  Angle Orthod     Country:  United States    
Other Details:
Languages:  eng     Pagination:  922-5     Citation Subset:  D; IM    
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MeSH Terms
Acid Etching, Dental
Bicuspid / pathology
Composite Resins / chemistry
Dental Alloys / chemistry
Dental Arch / pathology
Dental Bonding / methods*
Dental Cements / chemistry*
Equipment Failure
Lighting / instrumentation*
Mandible / pathology
Maxilla / pathology
Orthodontic Appliance Design
Orthodontic Brackets*
Polymers / chemistry
Resin Cements / chemistry
Sex Factors
Stainless Steel / chemistry
Tooth Movement / instrumentation
Reg. No./Substance:
0/Composite Resins; 0/Dental Alloys; 0/Dental Cements; 0/Polymers; 0/Resin Cements; 0/Transbond XT; 0/Transbond XT Light Cure Adhesive Primer; 12597-68-1/Stainless Steel

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

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