Perception of midline deviations in smile esthetics by laypersons

To evaluate the esthetic perception of upper dental midline deviation by laypersons and if adjacent structures influence their judgment. An album with 12 randomly distributed frontal view photographs of the smile of a woman with the midline digitally deviated was evaluated by 95 laypersons. The fron...

Full description

Saved in:

Bibliographic Details
Published in:	Dental press journal of orthodontics Vol. 21; no. 6; pp. 51 - 57
Main Authors:	Ferreira, Jamille Barros, Silva, Licínio Esmeraldo da, Caetano, Márcia Tereza de Oliveira, Motta, Andrea Fonseca Jardim da, Cury-Saramago, Adriana de Alcantara, Mucha, José Nelson
Format:	Journal Article
Language:	English
Published:	Brazil Dental Press International 2016 Dental Press Editora
Subjects:	DENTISTRY, ORAL SURGERY & MEDICINE Esthetics - psychology Estética dentária Face - anatomy & histology Female Fotografia dentária Humans Mouth - anatomy & histology Original Orthodontics Ortodontia Perception Percepção Smiling - psychology Young Adult Esthetics, dental Ortodontia Fotografia dentária Percepção Perception Photography, dental Estética dentária Orthodontics
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	To evaluate the esthetic perception of upper dental midline deviation by laypersons and if adjacent structures influence their judgment. An album with 12 randomly distributed frontal view photographs of the smile of a woman with the midline digitally deviated was evaluated by 95 laypersons. The frontal view smiling photograph was modified to create from 1 mm to 5 mm deviations in the upper midline to the left side. The photographs were cropped in two different manners and divided into two groups of six photographs each: group LCN included the lips, chin, and two-thirds of the nose, and group L included the lips only. The laypersons performed the rate of each smile using a visual analog scale (VAS). Wilcoxon test, Student's t-test and Mann-Whitney test were applied, adopting a 5% level of significance. Laypersons were able to perceive midline deviations starting at 1 mm. Statistically significant results (p< 0.05) were found for all multiple comparisons of the values in photographs of group LCN and for almost all comparisons in photographs of group L. Comparisons between the photographs of groups LCN and L showed statistically significant values (p< 0.05) when the deviation was 1 mm. Laypersons were able to perceive the upper dental midline deviations of 1 mm, and above when the adjacent structures of the smiles were included. Deviations of 2 mm and above when the lips only were included. The visualization of structures adjacent to the smile demonstrated influence on the perception of midline deviation.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 Author contributions: Conception/design of the study: JBF, AFJM, JNM. Data acquisition, analysis or interpretation: JBF, LES, AFJM. Writing the article: JBF, MTOC, AFJM, AACS, JNM. Critical revision of the article: MTOC, AFJM, AACS, JNM. Final approval of the article: AFJM, AACS, JNM. Overall responsibility: AFJM.
ISSN:	2176-9451 2177-6709 2177-6709 2176-9451
DOI:	10.1590/2177-6709.21.6.051-057.oar