Changes in dental arches dimensions of 3 to 6 year old children

Taís Cristina dos Santos DINELLI, Lídia Parsekian MARTINS, Ary dos Santos PINTO

Two hundred and thirty ive children enrolled in kindergarden of Araraquara public school system were evalueted and cast models were obtained. For this purpose a special apparatus was confeccioned with utility wax and exam stick following the dental arch form. After an year same children were evaluated again in order to observe possible changes in the primary dental arches. Using the cast models some measurements were acquired by a tridimensional digitalizer, MicroScribe-3DX, on the irst and after one year cast models. Second molars, irst molars and canine width, arch perimeter, arch length and primate space were evaluated. Gender dimorphism, arch type and inger or paciier sucking habits were also considered. It was concluded that the transverse measurements showed a signiicant increase in primary dentition, while the perimeter, arch length and primate spaces were stable. The irst and second molars width presented gender dimorphism, with higher values in the females. Considering the perimeter, arch length and primate spaces there were no signiicant differences according to gender. The arch length dimensions were not different between Baume Type I and II arches, althougth Baume Type I arch width were larger than Type II. Finger and paciier sucking habits had no effect on primary dentition dimensions during the observed period of one year.

Keywords: Primary dentition. Malocclusion. Dimensions changes - kindergarden.

Saturday, April 27, 2024 13:53