Original scientific paper
Longitudinal analysis of the development of eugnathia and dysgnathia from the period of primary dentition to permanent dentition
Mario Legović
; Ambulanta za Ordodoncijiu Doma zdravlja Poreč, Hrvatska
Aldo Cehić
; Ambulanta za Ordodoncijiu Doma zdravlja Poreč, Hrvatska
Abstract
The development of eugnathia and dysgnathiia from the deciduous dentition period to the permanent dentition period, was observed in 366 examinees (190 boys and 176 girls) from the Poreč commune. Initially, the children were examined at the age of 4.5— 5.5 years, whereas the control visit occurred at the age of 12.5 — 13.5 years. No orthodontic procedures were performed in the children during the mentioned time interval. In the deciduous dentition, orthodontic anomalies were detected in 43.7% of the examinees (39.5% and 48.3% of the boys and girls, respectively), whereas in the permanent dentition such anomalies were found in 63.7% of the children examined (61.05% and 66.5% of the boys and girls, respectively). Besides a striking increase in the total number of anomalies (20%, t = 3.6, p < 0.05), a marked increase was also registered in the number of the compression (13%, t = 3.6, p < 0.05) and other anomaliies (8.5%, t = 4.4, p < 0.05), whereas the number of the open bite anomalies decreased by 21.6% (t = 8.6, p < 0.05).
During the study interval, no significant changes occurred in the incidence of the prognathic anomaliies, over bite and cross bite. Concerning the Angle’s classes, during the period of mixed dentition, the incidence of classes I, II and 111 increased by 6%, 5.2% and 0.8%, respectively.
Keywords
Analysis; orthodontic anomalies
Hrčak ID:
105145
URI
Publication date:
15.3.1986.
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