Natural head position and growth of the facial part of the skull.

The aim of this study was to determine any correlation between natural head position and cranio-cervical growth direction and if natural head position influences facial growth direction. One hundred sixty (160) cephalometric radiographs were examined and cranio-cervical inclinations determined (angles: NS-Ver, NS-OPT, NS-CVT). On the basis of the NS-ML angle, radiographs were divided into two groups: mandibular anteriorotation and posteriorotation.

The effect of oral health education on dental plaque development and the level of caries-related Streptococcus mutans and Lactobacillus spp.

The aim of this study was to determine the influence of oral hygiene instruction (OHI) on oral hygiene status and on the reduction of inducing bacteria (Streptococcus mutans and Lactobacillus spp.) in 30 subjects (12 males and 18 females) with an age range from 10 to 14 years. The patients were instructed on how to carry out effective oral hygiene close to brackets and ligatures, and in the use of dental floss for cleaning spaces around brackets, between the teeth and under archwires.

[Characteristics of fungi and attempts of their elimination from the oral cavity in children treated with orthodontic appliances].

Microbiological evaluation of oral cavity was performed in 112 children, aged 6-18 years, with retrogenic defects (group I) and other defects (group II). The material for microbiological investigation consisted of contents of oral cavity cultured on the Sabouraud broth. Isolated abacterial strains of fungi were differentiated according to their morphological and biochemical properties.

[Qualitative and quantitative assessment of occlusion in a selected group of children].

The occlusion of 102 children from the Province of Krosno was assessed by means of the diagnostic principles of Orlik-Grzybowska and a scoring system of Masztalerz. The complex of morphological-functional features proper for age was found in 30.39% of children, while malocclusion was diagnosed in 69.

[Physical development and teeth age of children aged 7-10 years].

The reported stomatological and paediatric examinations were carried out in 876 children aged 7-10 years. In the studied material accelerated eruption of permanent teeth coexisted with excessive body mass or height, and delayed eruption was related to below normal body mass and height.