Evaluation of the relationship between body mass index (BMI) with malocclusion in adolescents who were referred to the dentistry department of Tabriz university of medical science

Abstract

Purpose: The Purpose of this thesis is to Evaluation the relationship between body mass index (BMI) with malocclusion in adolescents who were referred to the dentistry department of Tabriz university of medical science.

Method and Materials: The present study is a retrospective type of study which conducted on a group of 154 adolescents of 10-18 years old age from both sexes who had attended the Department of Orthodontics at Tabriz University of Medical Sciences with good general health and no systemic disease or hospitalization. Statistical analysis done using the SPSS17 software and p-value p<0.05 considered.

Results: The average BMI was generally 18.32 ± 3.71 with the lowest of 13.17 and the highest of 29.40. The average of BMI percent was 45.78 ± 34.31. dental OCC was reported in 44 (34.4%) patients Class I, 60 (46.9%) were Class II and 24 (18.8%) were classified as Class III. skeletal OCC was reported in 40 (31.3%) patients Class I, 56 (43.8%) were Class II, and 32 (25%) were classified as Class III. to compare these indicators in different categories skeletal OCC and dental OCC, nonparametric test of Kruskal- Wallis was used. The highest mean BMI was reported in class III with an average of 19.04 ± 3.61 and the lowest in class II with an average of 18.04 ± 3.36. The highest mean BMI percent was in Class III with an average of 37.68 ± 50.66 and the lowest in Class I with an average of 34.19 ± 44.13. the highest BMI of skeletal OCC was in Class III with an average of 18.94 ± 3.5 and the lowest in Class I with an average of 17.27 ± 3.64. The highest and lowest mean BMI percent was reported in the same way with averages of 53.81 ± 37.27 and 33.4 ± 30.49, respectively.it was evaluated by Chi-square test.

Conclusion: The results of our study revealed that class II malocclusion was the most prevalent concern between studied subjects. The lowest pattern belonged to class III. Moreover, our study showed that the highest amount of the BMI mean in both dental and skeletal malocclusions associated with class III patients. Meanwhile the lowest rate of malocclusion was related to the class II patients.. While concerning the BMI percentage, the highest percent related to class III (like dental malocclusion) and the lowest was for class I.