Study of oral breathing habit in relation to malocclusion

Abstract

Background: Many years of research have shown that facial growth is unbalanced in people with oral breathing habits due to soft tissue dysfunction. No research on this topic has been conducted in Mongolia, which is the basis for this study. Aim: To study the pattern of respiration in relation to malocclusion. Materials and Methods: The survey was conducted using a population-based, randomized, retrospective survey model using SPSS 21.0 software based on data from 2,000 people collected under the MonTimeLine project, which covers 8 provinces in 4 regions and 6 districts of Ulaanbaatar, according to Mongolian geographical zoning. Results: A total of 702 people were sampled, of which 219 (31.2%) were men and 483 (68.8%) were women, with the majority being women. Comparing the respiratory status of the respondents with open bite, 13.6% of the mouth breathers and 4.6% of the nasal breathers have an open bite. If we compare the respiratory status with the molar relation, 53.1% of the mouth breathers had C1, 37% had C2, 9.9% had C3, while 64.3% of nasal breathers had C1, 25.7% had C2 and 10% had C3. Conclusion: A comparative study of the results of the study and the use of the chi-square test showed that the respiratory status was statistically significant with open bite (p=0.001) and the molar relation (p=0.017).