Awareness of Clenching and Underweight are Risk Factors for Onset of Crowding in Young Adults: A Prospective 3-Year Cohort Study

Naoki Toyama, Daisuke Ekuni, Ayano Tabata, Kota Kataoka, Mayu Yamane-Takeuchi, Kohei Fujimori, Terumasa Kobayashi, Daiki Fukuhara, Koichiro Irie, Tetsuji Azuma, Yoshiaki Iwasaki, Manabu Morita

Research output: Contribution to journalArticle

Abstract

Bruxism is a parafunctional activity that can seriously affect quality of life. Although bruxism induces many problems in the oral and maxillofacial area, whether it contributes to the onset of malocclusion remains unclear. The purpose of this prospective cohort study was to investigate the association between the onset of malocclusion and awareness of clenching during the daytime in young adults. Among 1,092 Okayama University students who underwent normal occlusion at baseline, we analysed 238 who had undergone a dental examination and had complete data after 3 years (2013⁻2016). We also performed subgroup analysis to focus on the association between awake bruxism and the onset of crowding (n = 216). Odds ratios (ORs) were calculated using multivariate logistic regression analyses. The incidences of malocclusion and crowding were 53.8% and 44.5%, respectively. In multivariate logistic regression, awareness of clenching was a risk factor for crowding (OR: 3.63; 95% confidence interval [CI]: 1.08⁻12.17). Moreover, underweight (body mass index < 18.5 kg/m²) was related to the onset of malocclusion (OR: 2.34; 95%CI: 1.11⁻4.92) and crowding (OR: 2.52, 95%CI: 1.25⁻5.76). These results suggest that awareness of clenching during the daytime and underweight are risk factors for the onset of crowding in young adults.

Original languageEnglish
JournalInternational journal of environmental research and public health
Volume16
Issue number5
DOIs
Publication statusPublished - Feb 26 2019

Fingerprint

Malocclusion
Thinness
Bruxism
Young Adult
Cohort Studies
Odds Ratio
Confidence Intervals
Logistic Models
Tooth
Body Mass Index
Regression Analysis
Quality of Life
Prospective Studies
Students
Incidence

Keywords

  • bruxism
  • cohort study
  • malocclusion
  • underweight
  • young adults

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

Cite this

Awareness of Clenching and Underweight are Risk Factors for Onset of Crowding in Young Adults : A Prospective 3-Year Cohort Study. / Toyama, Naoki; Ekuni, Daisuke; Tabata, Ayano; Kataoka, Kota; Yamane-Takeuchi, Mayu; Fujimori, Kohei; Kobayashi, Terumasa; Fukuhara, Daiki; Irie, Koichiro; Azuma, Tetsuji; Iwasaki, Yoshiaki; Morita, Manabu.

In: International journal of environmental research and public health, Vol. 16, No. 5, 26.02.2019.

Research output: Contribution to journalArticle

@article{3bcf003a76114081ba044f285801aa7e,
title = "Awareness of Clenching and Underweight are Risk Factors for Onset of Crowding in Young Adults: A Prospective 3-Year Cohort Study",
abstract = "Bruxism is a parafunctional activity that can seriously affect quality of life. Although bruxism induces many problems in the oral and maxillofacial area, whether it contributes to the onset of malocclusion remains unclear. The purpose of this prospective cohort study was to investigate the association between the onset of malocclusion and awareness of clenching during the daytime in young adults. Among 1,092 Okayama University students who underwent normal occlusion at baseline, we analysed 238 who had undergone a dental examination and had complete data after 3 years (2013⁻2016). We also performed subgroup analysis to focus on the association between awake bruxism and the onset of crowding (n = 216). Odds ratios (ORs) were calculated using multivariate logistic regression analyses. The incidences of malocclusion and crowding were 53.8{\%} and 44.5{\%}, respectively. In multivariate logistic regression, awareness of clenching was a risk factor for crowding (OR: 3.63; 95{\%} confidence interval [CI]: 1.08⁻12.17). Moreover, underweight (body mass index < 18.5 kg/m²) was related to the onset of malocclusion (OR: 2.34; 95{\%}CI: 1.11⁻4.92) and crowding (OR: 2.52, 95{\%}CI: 1.25⁻5.76). These results suggest that awareness of clenching during the daytime and underweight are risk factors for the onset of crowding in young adults.",
keywords = "bruxism, cohort study, malocclusion, underweight, young adults",
author = "Naoki Toyama and Daisuke Ekuni and Ayano Tabata and Kota Kataoka and Mayu Yamane-Takeuchi and Kohei Fujimori and Terumasa Kobayashi and Daiki Fukuhara and Koichiro Irie and Tetsuji Azuma and Yoshiaki Iwasaki and Manabu Morita",
year = "2019",
month = "2",
day = "26",
doi = "10.3390/ijerph16050690",
language = "English",
volume = "16",
journal = "International Journal of Environmental Research and Public Health",
issn = "1661-7827",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "5",

}

TY - JOUR

T1 - Awareness of Clenching and Underweight are Risk Factors for Onset of Crowding in Young Adults

T2 - A Prospective 3-Year Cohort Study

AU - Toyama, Naoki

AU - Ekuni, Daisuke

AU - Tabata, Ayano

AU - Kataoka, Kota

AU - Yamane-Takeuchi, Mayu

AU - Fujimori, Kohei

AU - Kobayashi, Terumasa

AU - Fukuhara, Daiki

AU - Irie, Koichiro

AU - Azuma, Tetsuji

AU - Iwasaki, Yoshiaki

AU - Morita, Manabu

PY - 2019/2/26

Y1 - 2019/2/26

N2 - Bruxism is a parafunctional activity that can seriously affect quality of life. Although bruxism induces many problems in the oral and maxillofacial area, whether it contributes to the onset of malocclusion remains unclear. The purpose of this prospective cohort study was to investigate the association between the onset of malocclusion and awareness of clenching during the daytime in young adults. Among 1,092 Okayama University students who underwent normal occlusion at baseline, we analysed 238 who had undergone a dental examination and had complete data after 3 years (2013⁻2016). We also performed subgroup analysis to focus on the association between awake bruxism and the onset of crowding (n = 216). Odds ratios (ORs) were calculated using multivariate logistic regression analyses. The incidences of malocclusion and crowding were 53.8% and 44.5%, respectively. In multivariate logistic regression, awareness of clenching was a risk factor for crowding (OR: 3.63; 95% confidence interval [CI]: 1.08⁻12.17). Moreover, underweight (body mass index < 18.5 kg/m²) was related to the onset of malocclusion (OR: 2.34; 95%CI: 1.11⁻4.92) and crowding (OR: 2.52, 95%CI: 1.25⁻5.76). These results suggest that awareness of clenching during the daytime and underweight are risk factors for the onset of crowding in young adults.

AB - Bruxism is a parafunctional activity that can seriously affect quality of life. Although bruxism induces many problems in the oral and maxillofacial area, whether it contributes to the onset of malocclusion remains unclear. The purpose of this prospective cohort study was to investigate the association between the onset of malocclusion and awareness of clenching during the daytime in young adults. Among 1,092 Okayama University students who underwent normal occlusion at baseline, we analysed 238 who had undergone a dental examination and had complete data after 3 years (2013⁻2016). We also performed subgroup analysis to focus on the association between awake bruxism and the onset of crowding (n = 216). Odds ratios (ORs) were calculated using multivariate logistic regression analyses. The incidences of malocclusion and crowding were 53.8% and 44.5%, respectively. In multivariate logistic regression, awareness of clenching was a risk factor for crowding (OR: 3.63; 95% confidence interval [CI]: 1.08⁻12.17). Moreover, underweight (body mass index < 18.5 kg/m²) was related to the onset of malocclusion (OR: 2.34; 95%CI: 1.11⁻4.92) and crowding (OR: 2.52, 95%CI: 1.25⁻5.76). These results suggest that awareness of clenching during the daytime and underweight are risk factors for the onset of crowding in young adults.

KW - bruxism

KW - cohort study

KW - malocclusion

KW - underweight

KW - young adults

UR - http://www.scopus.com/inward/record.url?scp=85062397017&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85062397017&partnerID=8YFLogxK

U2 - 10.3390/ijerph16050690

DO - 10.3390/ijerph16050690

M3 - Article

C2 - 30813621

AN - SCOPUS:85062397017

VL - 16

JO - International Journal of Environmental Research and Public Health

JF - International Journal of Environmental Research and Public Health

SN - 1661-7827

IS - 5

ER -