Dixit Disha, Rastogi Pavitra, Lal Nand, Singhal Rameshwari
Department of Periodontology, Faculty of Dental Sciences, King George's Medical University, U.P., Lucknow, India.
J Oral Biol Craniofac Res. 2025 Jan-Feb;15(1):1-4. doi: 10.1016/j.jobcr.2024.11.003. Epub 2024 Nov 22.
For the clinician to conveniently perform an extensive oral examination, it is required to have a known normal range of maximum mouth opening (MMO). This study aims to establish a standard for calculating the normal range of mouth opening in the adult population of North India. The results of this research will have clinical implications for the treatment and diagnosis of diseases that affect the mouth opening in adults, either directly or indirectly.
To evaluate mean mouth opening in North Indian population and establish their correlation with age and gender.
662 adults from North Indian population, 317 males and 345 females in the age range of 18-80 years were evaluated on their consent. Maximum mouth opening was measured using calibrated vernier calliper scale. This study was conducted in the Department of Periodontology, Faculty of Dental Sciences, King George Medical University, Lucknow.
Males exhibited a higher mean MMO of 48.0 mm compared to females, who had a lower mean MMO of 45.1 mm among North Indian population of the country. In the statistical comparison of MMO between males and females within each age group, the results showed no significant differences.
Mouth opening of females is less than males in all age groups and it seems to decrease with age in all age groups in both males and females. The variability of MMO with age appears statistically similar for both genders.
为了使临床医生能够方便地进行全面的口腔检查，需要有一个已知的最大开口度（MMO）正常范围。本研究旨在建立印度北部成年人口开口度正常范围的计算标准。本研究结果将对直接或间接影响成人口腔开口度的疾病的治疗和诊断具有临床意义。
评估印度北部人群的平均开口度，并确定其与年龄和性别的相关性。
在获得同意后，对662名来自印度北部的成年人进行了评估，其中男性317名，女性345名，年龄在18 - 80岁之间。使用校准的游标卡尺测量最大开口度。本研究在勒克瑙乔治国王医科大学牙科学院牙周病学系进行。
在该国印度北部人群中，男性的平均最大开口度为48.0毫米，高于女性，女性的平均最大开口度为45.1毫米。在每个年龄组内男性和女性最大开口度的统计学比较中，结果显示无显著差异。
在所有年龄组中，女性的开口度均小于男性，并且在所有年龄组中，男性和女性的开口度似乎都随年龄增长而减小。最大开口度随年龄的变化在两性中在统计学上似乎相似。
