Document Detail


The effects of buccal corridor spaces and arch form on smile esthetics.
MedLine Citation:
PMID:  15775949     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: An attractive, well-balanced smile is a paramount treatment objective of modern orthodontic therapy. The purpose of this study was to determine the effects of buccal corridor spaces (BCS) and arch form on smile esthetics as perceived by laypeople, general dentists, and orthodontists. MATERIAL: Photographs of 20 women treated by 2 orthodontists were collected: 1 group had narrow tapered or tapered arch forms, and the other had normal to broad arch forms. Photographs of 10 untreated women served as a control sample. All photographs showed the subjects smiling. The photographs were digitized and evaluated for BCS. Then, photographs with BCS were altered to eliminate the dark triangular areas, and those without BCS were altered by the addition of dark triangular areas at the lateral aspects of the smile. The altered photographs were randomized into a survey with the 30 original photographs. Three groups of raters (dentists, orthodontists, and laypeople) used a visual analogue scale to rate the photographs. RESULTS: There was no significant difference in smile scores related to BCS for all samples and for all viewers. Dentists rated broader arch forms as more esthetic than untreated arch forms. Orthodontists rated broader arch forms as more esthetic than narrow tapered arch forms and untreated arch forms. Lay people showed no preference of arch form. CONCLUSIONS: This study demonstrates that the presence of BCS does not influence smile esthetics. However, there are differences in how dentists, orthodontists, and laypeople evaluate smiles and in what arch form each group prefers.
Authors:
Dustin Roden-Johnson; Ronald Gallerano; Jeryl English
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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:  127     ISSN:  0889-5406     ISO Abbreviation:  Am J Orthod Dentofacial Orthop     Publication Date:  2005 Mar 
Date Detail:
Created Date:  2005-03-18     Completed Date:  2005-04-04     Revised Date:  2005-12-06    
Medline Journal Info:
Nlm Unique ID:  8610224     Medline TA:  Am J Orthod Dentofacial Orthop     Country:  United States    
Other Details:
Languages:  eng     Pagination:  343-50     Citation Subset:  D; IM    
Affiliation:
Department of Orthodontics, Dental Branch, University of Texas Health Science Center at Houston, 6516 M.D. Anderson Boulevard, Houston, TX 77030, USA. Dustin.D.Roden-Johnson@uth.tmc.edu
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Analysis of Variance
Attitude of Health Personnel
Cheek / anatomy & histology*
Dental Arch / anatomy & histology*
Dentists / psychology
Esthetics, Dental*
Female
Humans
Photography, Dental
Public Opinion
Smiling*
Comments/Corrections
Comment In:
Am J Orthod Dentofacial Orthop. 2005 Nov;128(5):557   [PMID:  16286197 ]

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


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