The normal range of maximum mouth opening and its correlation with age, gender, height, and weight in Turkish children

ObjectiveThe aim is to measure the maximum mouth opening (MMO) of healthy children between the ages 4 and 18 years.MethodsSix hundred seventy-four children between ages 4 and 18 years were included in the study. Individuals with dentofacial anomaly, temporomandibular joint disease, infection, trauma, and rheumatic disease were not included in the study. The MMO of the participants was measured with a vernier caliper. Demographic information such as weight, height, and age was recorded.ResultsThe MMO was calculated to be 46.62 mm in boys and 45.96 mm in girls. The MMO value increased with increasing age. However, no difference was observed in terms of gender in the same age group.ConclusionIn this study, normal MMO values between the ages 4 and 18 years were determined. It is to have differences in age group and society-based examinations. For this reason, it is important to know the normal values of each society in terms of age groups.