Izvorni znanstveni članak
Longitudinally Followed up Study of Maxillary Growth on Crossing from Mixed to Permanent Dentition
Asja Miličić
; Zavod za ortodonciju Stomatološkog fakulteta Zagreb, Zagreb, Hrvatska
Vesna Gaži-Čoklica
; Zavod za ortodonciju Stomatološkog fakulteta Zagreb, Zagreb, Hrvatska
Senka Rajić
; Zavod za ortodonciju Stomatološkog fakulteta Zagreb, Zagreb, Hrvatska
Mladen Šlaj
; Zavod za ortodonciju Stomatološkog fakulteta Zagreb, Zagreb, Hrvatska
Sažetak
Maxillary growth was assessed in a sample of 28 subjects with normal and 45 subjects with dysgnathic occlusion, longitudinally followed up during a two-year period. Four qualitative and 8 quantitative variables were observed. The subjects were examined on two occasions: during eruption of first premolars and two years later, during eruption of second permanent molars. The aim of the study was to determine the specificity of the growth in each of the groups and to point to major differences between them. Results of the study suggested the following conclusions: class II was most frequent in the dysgnathic group, with no changes between the two examinations; transversal shift of the mandible was more frequent and pronounced in the dysgnathic group, with an increasing frequency during the two-year period of observation; compactness and looseness undergoing dynamic changes were observed in both groups; compactness was more frequent in the dysgnathic group and increased in number with age, whereas looseness was slightly higher in the normal group and markedly decreased with age. Considering the sample as a whole, the width and height of the maxilla were on a slight increase. In the group of subjects with normal occlusion the same was also observed for the depth of overbite, and in the group of dysgnathic subjects for the anterior length. In the group with normal occlusion, the values of the following variables were statistically increased: widths on both examinations, and anterior length and height on the second examination. In the group of dysgnathic subjects, the values of the sum of incisors, incisal step and bite depth were higher on both examinations, and so were also posterior lengths on the initial examination.
Ključne riječi
mixed dentition; permanent dentition; maxillary growth
Hrčak ID:
99414
URI
Datum izdavanja:
15.9.1994.
Posjeta: 1.415 *