Abstract

Background/purpose: Smile esthetics is a critical factor for evaluating orthodontic treatment outcomes. The effects of tooth extraction on smile esthetics and buccal corridor remain controversial and have not been adequately investigated. Therefore, in this systematic review and meta-analysis, we evaluated the aforementioned effects. Materials and methods: We searched clinical studies held in PubMed, MEDLINE, Embase, and the Cochrane Library up to May 2015, with no restriction. Study selection and data extraction were conducted by two reviewers independently. A random-effects model was used for conducting a meta-analysis to assess the mean difference between the esthetic score and the buccal corridor ratio of extraction and nonextraction groups. Results: Six eligible studies were included in this meta-analysis. No significant difference was observed in the esthetic score and the buccal corridor ratio between extraction and nonextraction groups. Conclusion: Tooth extraction does not affect smile esthetics or buccal corridor. However, additional detailed, large-scale, double-blinded, and randomized controlled trials are required for further evaluation.

Original languageEnglish
JournalJournal of Dental Sciences
DOIs
Publication statusAccepted/In press - Apr 2 2016

Fingerprint

Tooth Extraction
Cheek
Esthetics
Meta-Analysis
Orthodontics
PubMed
MEDLINE
Libraries
Randomized Controlled Trials

Keywords

  • Buccal corridor
  • Smile esthetics
  • Tooth extraction

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

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title = "Effects of tooth extraction on smile esthetics and the buccal corridor: A meta-analysis",
abstract = "Background/purpose: Smile esthetics is a critical factor for evaluating orthodontic treatment outcomes. The effects of tooth extraction on smile esthetics and buccal corridor remain controversial and have not been adequately investigated. Therefore, in this systematic review and meta-analysis, we evaluated the aforementioned effects. Materials and methods: We searched clinical studies held in PubMed, MEDLINE, Embase, and the Cochrane Library up to May 2015, with no restriction. Study selection and data extraction were conducted by two reviewers independently. A random-effects model was used for conducting a meta-analysis to assess the mean difference between the esthetic score and the buccal corridor ratio of extraction and nonextraction groups. Results: Six eligible studies were included in this meta-analysis. No significant difference was observed in the esthetic score and the buccal corridor ratio between extraction and nonextraction groups. Conclusion: Tooth extraction does not affect smile esthetics or buccal corridor. However, additional detailed, large-scale, double-blinded, and randomized controlled trials are required for further evaluation.",
keywords = "Buccal corridor, Smile esthetics, Tooth extraction",
author = "Cheng, {Hsin Chung} and Wang, {Yi Chun} and Tam, {Ka Wai} and Yen, {Ming Fang}",
year = "2016",
month = "4",
day = "2",
doi = "10.1016/j.jds.2016.04.003",
language = "English",
journal = "Journal of Dental Sciences",
issn = "1991-7902",
publisher = "中華牙醫學會",

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T1 - Effects of tooth extraction on smile esthetics and the buccal corridor

T2 - A meta-analysis

AU - Cheng, Hsin Chung

AU - Wang, Yi Chun

AU - Tam, Ka Wai

AU - Yen, Ming Fang

PY - 2016/4/2

Y1 - 2016/4/2

N2 - Background/purpose: Smile esthetics is a critical factor for evaluating orthodontic treatment outcomes. The effects of tooth extraction on smile esthetics and buccal corridor remain controversial and have not been adequately investigated. Therefore, in this systematic review and meta-analysis, we evaluated the aforementioned effects. Materials and methods: We searched clinical studies held in PubMed, MEDLINE, Embase, and the Cochrane Library up to May 2015, with no restriction. Study selection and data extraction were conducted by two reviewers independently. A random-effects model was used for conducting a meta-analysis to assess the mean difference between the esthetic score and the buccal corridor ratio of extraction and nonextraction groups. Results: Six eligible studies were included in this meta-analysis. No significant difference was observed in the esthetic score and the buccal corridor ratio between extraction and nonextraction groups. Conclusion: Tooth extraction does not affect smile esthetics or buccal corridor. However, additional detailed, large-scale, double-blinded, and randomized controlled trials are required for further evaluation.

AB - Background/purpose: Smile esthetics is a critical factor for evaluating orthodontic treatment outcomes. The effects of tooth extraction on smile esthetics and buccal corridor remain controversial and have not been adequately investigated. Therefore, in this systematic review and meta-analysis, we evaluated the aforementioned effects. Materials and methods: We searched clinical studies held in PubMed, MEDLINE, Embase, and the Cochrane Library up to May 2015, with no restriction. Study selection and data extraction were conducted by two reviewers independently. A random-effects model was used for conducting a meta-analysis to assess the mean difference between the esthetic score and the buccal corridor ratio of extraction and nonextraction groups. Results: Six eligible studies were included in this meta-analysis. No significant difference was observed in the esthetic score and the buccal corridor ratio between extraction and nonextraction groups. Conclusion: Tooth extraction does not affect smile esthetics or buccal corridor. However, additional detailed, large-scale, double-blinded, and randomized controlled trials are required for further evaluation.

KW - Buccal corridor

KW - Smile esthetics

KW - Tooth extraction

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