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Perception of smile esthetics by laypeople of different ages

BACKGROUND: Age is a factor affecting smile esthetics. Three variables of smile esthetics associated with the maxillary anterior teeth and age-related changes have recently received considerable attention: (i) the incisal edge position of the maxillary central incisors, (ii) the maxillary gingival d...

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Autores principales: Sriphadungporn, Chompunuch, Chamnannidiadha, Niramol
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5357618/
https://www.ncbi.nlm.nih.gov/pubmed/28317085
http://dx.doi.org/10.1186/s40510-017-0162-4
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author Sriphadungporn, Chompunuch
Chamnannidiadha, Niramol
author_facet Sriphadungporn, Chompunuch
Chamnannidiadha, Niramol
author_sort Sriphadungporn, Chompunuch
collection PubMed
description BACKGROUND: Age is a factor affecting smile esthetics. Three variables of smile esthetics associated with the maxillary anterior teeth and age-related changes have recently received considerable attention: (i) the incisal edge position of the maxillary central incisors, (ii) the maxillary gingival display, and (iii) the presence of a black triangle between the maxillary central incisors. The aim of this study was to evaluate the influence of age on smile esthetic perception based on these three variables in a group of Thai laypeople. METHODS: The smiles were constructed from a photograph of a female smile. Smile photographs were altered in various increments using three variables: the incisal edge position of the maxillary incisors, gingival display, and a black triangle between the maxillary central incisors. The photographs were shown to a group of 240 Thai laypeople. The subjects were divided into two groups: a younger group, 15–29 years old (n = 120) and an older group, 36–52 years old (n = 120). Each subject was asked to score the attractiveness of each smile separately using a visual analog scale. RESULTS: Smile attractiveness scores concerning the incisal edge positions of the maxillary central incisors were similar between the two groups. However, upper lip coverage was rated as unattractive by the younger group. A gingival display of 0 and 2 mm was rated as most attractive by the younger group. Upper lip coverage and gingival display of 0 and 2 mm were considered attractive by the older group. Excessive gingival display (6 mm) was scored as unattractive by both groups. A black triangle ranging from 1 to 2.5 mm between the maxillary central incisors was scored differently between the two groups. The older group was more tolerant of the black triangle size. CONCLUSIONS: Age impacts smile perception based on maxillary gingival display and the presence of a black triangle between the maxillary central incisors, but not of the incisal edge position of the maxillary central incisors. Due to the variation in esthetic perception of each individual, participation between orthodontists and patients for decision-making and treatment planning is a crucial process to provide successful results.
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spelling pubmed-53576182017-03-31 Perception of smile esthetics by laypeople of different ages Sriphadungporn, Chompunuch Chamnannidiadha, Niramol Prog Orthod Research BACKGROUND: Age is a factor affecting smile esthetics. Three variables of smile esthetics associated with the maxillary anterior teeth and age-related changes have recently received considerable attention: (i) the incisal edge position of the maxillary central incisors, (ii) the maxillary gingival display, and (iii) the presence of a black triangle between the maxillary central incisors. The aim of this study was to evaluate the influence of age on smile esthetic perception based on these three variables in a group of Thai laypeople. METHODS: The smiles were constructed from a photograph of a female smile. Smile photographs were altered in various increments using three variables: the incisal edge position of the maxillary incisors, gingival display, and a black triangle between the maxillary central incisors. The photographs were shown to a group of 240 Thai laypeople. The subjects were divided into two groups: a younger group, 15–29 years old (n = 120) and an older group, 36–52 years old (n = 120). Each subject was asked to score the attractiveness of each smile separately using a visual analog scale. RESULTS: Smile attractiveness scores concerning the incisal edge positions of the maxillary central incisors were similar between the two groups. However, upper lip coverage was rated as unattractive by the younger group. A gingival display of 0 and 2 mm was rated as most attractive by the younger group. Upper lip coverage and gingival display of 0 and 2 mm were considered attractive by the older group. Excessive gingival display (6 mm) was scored as unattractive by both groups. A black triangle ranging from 1 to 2.5 mm between the maxillary central incisors was scored differently between the two groups. The older group was more tolerant of the black triangle size. CONCLUSIONS: Age impacts smile perception based on maxillary gingival display and the presence of a black triangle between the maxillary central incisors, but not of the incisal edge position of the maxillary central incisors. Due to the variation in esthetic perception of each individual, participation between orthodontists and patients for decision-making and treatment planning is a crucial process to provide successful results. Springer Berlin Heidelberg 2017-03-20 /pmc/articles/PMC5357618/ /pubmed/28317085 http://dx.doi.org/10.1186/s40510-017-0162-4 Text en © The Author(s). 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Research
Sriphadungporn, Chompunuch
Chamnannidiadha, Niramol
Perception of smile esthetics by laypeople of different ages
title Perception of smile esthetics by laypeople of different ages
title_full Perception of smile esthetics by laypeople of different ages
title_fullStr Perception of smile esthetics by laypeople of different ages
title_full_unstemmed Perception of smile esthetics by laypeople of different ages
title_short Perception of smile esthetics by laypeople of different ages
title_sort perception of smile esthetics by laypeople of different ages
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5357618/
https://www.ncbi.nlm.nih.gov/pubmed/28317085
http://dx.doi.org/10.1186/s40510-017-0162-4
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