Document Detail

Influence of optical properties of esthetic brackets (color, translucence, and fluorescence) on visual perception.
MedLine Citation:
PMID:  22464528     Owner:  NLM     Status:  In-Data-Review    
INTRODUCTION: The aims of this study were to evaluate the optical properties of esthetic brackets and determine their influence on visual perception.
METHODS: Eighty esthetic brackets of 16 commercial brands were tested. The color and translucency of the brackets, as well as the color of the maxillary central incisors of 40 subjects, were measured with a spectrophotometer. The fluorescence of the brackets was determined by duly calibrated appraisers. The color differences between the brands of brackets and the teeth were calculated. Data were analyzed by using 1-way analysis of variance; the Scheffé multiple comparison test was used to establish the difference between brands of brackets, (α = 0.05).
RESULTS: The color parameters L ∗ a ∗ b ∗ of nontranslucent brackets ranged from 49.4 to 86.0, -1.6 to 3.0, and 1.9 to 14.6, respectively. The direct transmission of light ranged from 0.0% to 38.8% transmittance. No bracket showed fluorescence. The color and translucency, as well as the color difference, of the brackets were influenced by brand (P <0.01).
CONCLUSIONS: The optical properties of esthetic brackets have a direct influence on visual perception; translucent brackets and the nontranslucent InVu (TP Orthodontics, LaPorte, Ind) brackets were less visually perceptible.
Hibernon Lopes Filho; Lúcio E G Maia; Marcus Vinicius A Araújo; Antônio Carlos O Ruellas
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics     Volume:  141     ISSN:  1097-6752     ISO Abbreviation:  Am J Orthod Dentofacial Orthop     Publication Date:  2012 Apr 
Date Detail:
Created Date:  2012-04-02     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8610224     Medline TA:  Am J Orthod Dentofacial Orthop     Country:  United States    
Other Details:
Languages:  eng     Pagination:  460-7     Citation Subset:  D; IM    
Copyright Information:
Copyright © 2012 American Association of Orthodontists. Published by Mosby, Inc. All rights reserved.
Postgraduate student, Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
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