不同性别成年人最大开口度差异及与身高、体重的相关性

Abstract

Abstract: Abstract: Objective To study sex difference of maximum mouth opening(MMO) in adults and its correlations with height and weight. Methods 142 adults aged 18-26 were randomly selected. The vertical distance between the incisal edges of central incisors with the same name of maxillary and mandibular under maximum mouth opening status was measured with digital vernier caliper. All operations were performed by the same physician. The sex difference of MMO was analyzed by independent sample t test and one-way ANOVA. The correlation of MMO with height and weight was estimated by Pearson correlation analysis, followed by simple linear regression models being established. Results The MMO of those subjects selected in this study was (53.11±5.61)mm and the MMO of males (56.56±5.08)mm was significantly larger than that of females (49.55±3.54)mm，P﹤0.00. The Pearson correlation coefficients of MMO with height and weight were 0.67 and 0.71 separately. The regression equation: MMO=0.49H-30.92、MMO=0.30W+33.57. Conclusions Sex has a significant influence on the MMO values of adults. There are significant correlations between height and weight.

Key words: 【Key words】 maximum mouth opening, sex, adults, height, weight

CLC Number:

R322.4+1

References

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The sex difference of maximum mouth opening in adults and its correlation with height and weight

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