Correlations of linear sizes of molars with cephalometric indicators of practically healthy men of the northern region of Ukraine

Abstract

The question of the relationship between the metric characteristics of cranial structures and odontometric parameters, and the possibility of building models based on them, which can later find their practical application in dental practice, remain a pressing problem of modern medical science. The purpose of the study is to establish the features of the relationship between the linear dimensions of molars with the cephalometric parameters of the brain and facial skull of practically healthy men in the northern region of Ukraine. 32 practically healthy residents of the northern region of Ukraine (from Kyiv, Zhytomyr, Sumy and Chernihiv regions) underwent computed tomography followed by odontometry of molars and cephalometry. The correlations between odontometric and cephalometric parameters were assessed using Spearman’s nonparametric statistics in the licensed package “Statistica 6.1”. The peculiarities of the correlations of the studied characteristics of molars with the indicators of the cerebral skull are established – multiple, only direct reliable (r = 0.35-0.57) and unreliable (r = 0.30-0.35) average correlation force (18.7% on the upper jaw, of which the relative majority with vestibular-lingual and mesio-distal dimensions and 24.1% on the lower jaw, of which the relative majority with the height of the teeth, their crowns and the length of the tooth roots); as well as with the indicators of the facial skull – mostly direct reliable (r = 0.35-0.51) and unreliable medium strength (r = 0.30-0.37) correlations, in most cases of a single nature (6.0% on the upper jaw and 6.6% on the lower jaw, almost uniformly with the height of the teeth, their crowns, root length, vestibular-lingual and mesio-distal dimensions). The results of correlation analysis of craniofacial structures are necessary for the correct construction of mathematical models, which can later find their practical application in dental practice and forensic medicine.

Features correlations of the sizes of molars with cephalometric indicators of men of the western region of Ukraine

“…Our results for men from the southern region of Ukraine differ from similar studies of the relationship between the size of molars with cephalometric indicators of men from the northern region of Ukraine [19], which confirms the need to take into account regional characteristics.…”

Correlations of linear sizes of molars with cephalometric indicators of practically healthy men of the southern region of Ukraine

“…The obtained results of qualitative and quantitative analysis of correlations of computer-tomographic sizes of M with cephalometric indicators and indices of practically healthy men from the southern administrative-territorial region of Ukraine have many numerical differences from the results received at the analysis of correlations of computer-tomographic sizes of M with cephalometric indicators and indices of practically healthy men from the northern region of Ukraine [17].…”