The normal range of maximum mouth opening and its correlation with height or weight in the young adult Chinese population
Background/purpose: Maximum mouth opening (MMO) is an important diagnostic reference for dental clinicians. However, the relationship between either body height or weight of the individual and their subsequent MMO has, up to now, been unclear. The purpose of this study was to measure the MMO of heal...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2017-03-01
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| Series: | Journal of Dental Sciences |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1991790216300873 |
| _version_ | 1818056913932255232 |
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| author | Xiao-Yan Li Cheng Jia Zi-Chuan Zhang |
| author_facet | Xiao-Yan Li Cheng Jia Zi-Chuan Zhang |
| author_sort | Xiao-Yan Li |
| collection | DOAJ |
| description | Background/purpose: Maximum mouth opening (MMO) is an important diagnostic reference for dental clinicians. However, the relationship between either body height or weight of the individual and their subsequent MMO has, up to now, been unclear. The purpose of this study was to measure the MMO of healthy young Chinese adults and to analyze the possible correlation of MMO with either height or weight.
Materials and methods: A total of 452 young Chinese adults, aged 20–35 years (238 males, 214 females) were selected for this cross-sectional study. We recorded the MMO, age, sex, height, and weight of the participants. Two standardized examiners performed the clinical oral assessments. Independent sample t tests were used to examine the difference in MMO relative to sex. Pearson's correlation and simple linear regression were used to estimate the correlation between MMO and either height or weight.
Results: The average MMO across the 452 participants was 52.02±5.09 mm, and the average MMO of males (54.18±5.21 mm) was significantly larger than that of females (49.62±3.69 mm; P<0.001). The mean MMO was moderately positively correlated with height (r=0.54; P<0.001) and weight (r=0.50; P<0.001). In the regression model, it was estimated that, for every 10 cm or 10 kg, MMO increased by about 3.6 mm or 1.8 mm, respectively.
Conclusion: With the limits of the present study, both height and weight were found to be significantly correlated with the MMO of Chinese young adults and may be significant predictors of MMO measurement. |
| first_indexed | 2024-12-10T12:36:24Z |
| format | Article |
| id | doaj.art-56b7cf8f11fd4ae3b8be220263f57615 |
| institution | Directory Open Access Journal |
| issn | 1991-7902 |
| language | English |
| last_indexed | 2024-12-10T12:36:24Z |
| publishDate | 2017-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Dental Sciences |
| spelling | doaj.art-56b7cf8f11fd4ae3b8be220263f576152022-12-22T01:48:39ZengElsevierJournal of Dental Sciences1991-79022017-03-01121565910.1016/j.jds.2016.09.002The normal range of maximum mouth opening and its correlation with height or weight in the young adult Chinese populationXiao-Yan Li0Cheng Jia1Zi-Chuan Zhang2Department of Stomatology, The Third Hospital of Hebei Medical University, Shijiazhuang, P.R. ChinaDepartment of Stomatology, The Third Hospital of Hebei Medical University, Shijiazhuang, P.R. ChinaDepartment of Stomatology, Bethune International Peace Hospital, Shijiazhuang, P.R. ChinaBackground/purpose: Maximum mouth opening (MMO) is an important diagnostic reference for dental clinicians. However, the relationship between either body height or weight of the individual and their subsequent MMO has, up to now, been unclear. The purpose of this study was to measure the MMO of healthy young Chinese adults and to analyze the possible correlation of MMO with either height or weight. Materials and methods: A total of 452 young Chinese adults, aged 20–35 years (238 males, 214 females) were selected for this cross-sectional study. We recorded the MMO, age, sex, height, and weight of the participants. Two standardized examiners performed the clinical oral assessments. Independent sample t tests were used to examine the difference in MMO relative to sex. Pearson's correlation and simple linear regression were used to estimate the correlation between MMO and either height or weight. Results: The average MMO across the 452 participants was 52.02±5.09 mm, and the average MMO of males (54.18±5.21 mm) was significantly larger than that of females (49.62±3.69 mm; P<0.001). The mean MMO was moderately positively correlated with height (r=0.54; P<0.001) and weight (r=0.50; P<0.001). In the regression model, it was estimated that, for every 10 cm or 10 kg, MMO increased by about 3.6 mm or 1.8 mm, respectively. Conclusion: With the limits of the present study, both height and weight were found to be significantly correlated with the MMO of Chinese young adults and may be significant predictors of MMO measurement.http://www.sciencedirect.com/science/article/pii/S1991790216300873adultsChineseheightmaximum mouth openingweight |
| spellingShingle | Xiao-Yan Li Cheng Jia Zi-Chuan Zhang The normal range of maximum mouth opening and its correlation with height or weight in the young adult Chinese population Journal of Dental Sciences adults Chinese height maximum mouth opening weight |
| title | The normal range of maximum mouth opening and its correlation with height or weight in the young adult Chinese population |
| title_full | The normal range of maximum mouth opening and its correlation with height or weight in the young adult Chinese population |
| title_fullStr | The normal range of maximum mouth opening and its correlation with height or weight in the young adult Chinese population |
| title_full_unstemmed | The normal range of maximum mouth opening and its correlation with height or weight in the young adult Chinese population |
| title_short | The normal range of maximum mouth opening and its correlation with height or weight in the young adult Chinese population |
| title_sort | normal range of maximum mouth opening and its correlation with height or weight in the young adult chinese population |
| topic | adults Chinese height maximum mouth opening weight |
| url | http://www.sciencedirect.com/science/article/pii/S1991790216300873 |
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