Authors: Z. Emrullai, S. Cerkezi, M. Zhuzelova, M. Nakova

UDC: 616.716.1/.4-007-089.23(497.752)

DOI: To be acquired

Keywords: Prevalence, epidemiological research, sagittal abnormality, class III anomaly.

ABSTRACT

Malocclusions are a frequent occurrence and have been a research subject of many authors’, since they present not only a serious health problem, but also social, aesthetic and psychological. We would like to present the inclusion of orthodontic anomalies in sagittal with particular emphasis on Class III, as well as the existence or non-existence of the statistical significance between ethnic groups, age, gender and their place of residence. Considering the fact that different ethnicities live in the town of Gostivar, and the fact that data on the frequency of various abnormalities with particular emphasis on Grade III are very scarce or they do not even exist, therefore, we included about 822 students in our research, aged 7 to 14 years from all three major ethnicities. During the detailed examination, data has been recorded in individual cartons designed only for this study and for each student we made 5 extra-oral and intraoral digital photographs. The prevalence of Class III abnormalities in our research was with a result of 5.84%. The presentation of Class III prevalence in relation to Class I is for x2 = 62.89 and p < 0.000, compared to Class II subclass 1 for x2 = 20.17 and p < 0.001 and Class II Subclass 2 for x2 = 6.11 and p < 0.05 (p = 0.01) it is with a statistically significant difference. Analyzing the predicted role of gender, ethnicity, age, and residence as independent variables in relation to Class III abnormality as a dependent variable, for Chi-Squer = 5.55 and p < 0.05 (p = 0.02) there was an important significance between gender, ethnicity, and place of residence as independent variables. Male surveyors’ have lower risk of developing abnormalities in class III sagittal is by 0.49 times compared to female subjects by Exp (B) = 0.49. We can say that the male sex affects protectively the anomalies of class III sagittal, for p < 0.05 of course with a significant difference.