The Prevalence of Malocclusion Requiring Early Orthodontic Treatment in 7-11 Years Old Children in Bojnurd, 2018
Malocclusion causes patientchr('39')s physical or emotional problems, tooth decay, gingivitis, etc. Risk of Malocclusion Assessment index determines the early orthodontic treatment need. The purpose of this study was to determine the prevalence of malocclusion required early orthodontic treatment in children 7-11 years old in Bojnurd in 2018.
A total of 616 students aged 7 to 11 years (271 boys and 345 girls) during mixed dentition in elementary schools in Bojnurd, who were selected by cluster sampling, were examined by two orthodontists. Those who were grade one or two were considered as no or low treatment need and those who were grade three, four and five were considered as treatment need by Risk of Malocclusion Assessment index. Collected Data were analyzed by Mann-Whitney, Kruskal-Wallis, Chi-square and Fisher tests in SPSS version 23, and the prevalence of malocclusion, required early orthodontic treatment, was determined. P-value <0.05 was considered as significant.
The prevalence of grade 1 and 2 of Risk of Malocclusion Assessment index was announced 14%. The prevalence of grade 3, 4, and 5 of Risk Of Malocclusion Assessment index were 77.7%, 8% and 0.3% respectively.
In this study, the prevalence of early orthodontic treatment need was 86.2%. According to the results, it can be concluded that the risk of malocclusion in children in Bojnurd is very high and planning to take preventive measures to reduce malocclusion in Bojnurd seems to be necessary.
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