DENSITY ANALYSIS OF HARD TISSUES OF CERVICAL REGION OF PERMANENT TEETH OF DIFFERENT GROUPS

Abstract

Abstract. In the practice of clinical and experimental dentistry, numerous studies are devoted to the study of the dynamics of jaw bone tissue density in the age-related aspect and in various pathological conditions. At the same time, the determination of the mineral density of the hard tissues of the teeth is of practical use only in isolated cases.The aim of the study: fi nding out the features of the ratio of indicators of hard tissue density of permanent teeth of diff erent groups in the cervical region.Material and methods. In order to determine the density of the hard tissues of cervical region, radiographs of 320 intact permanent teeth (n=10 for each permanent dentition tooth), made on a Siemens dental radiovisiography device with Trophy Radiology software, were processed. The images were processed in the VixWin Pro program. The unit of measurement of tissue density is the conventional grayscale value (GSV). Tissue density in the cervical region was determined separately for enamel, cementum, and dentin, the diff erence between the established indicators was presented as a percentage.Results of the study. A signifi cant diff erence in the density of enamel, dentin and cementum of permanent teeth was established. It was found that in the cervical region of incisors, dentin has the highest density, cement has the lowest density; in canines, dentin has the highest density, enamel has the lowest density; in premolars, dentin has the highest density, cementum has the lowest density; in molars, enamel has the highest density, cementum has the lowest density. The enamel and dentin density indicators are the lowest in incisors, then gradually increase in canines and premolars, and reach the maximum value in molars. Cement density indicators are also the lowest in incisors, slightly higher in premolars, still increase in canines and reach the maximum value in molars.Conclusions. When using radiological methods to research the condition of the hard tissues of the teeth, it is the radiological biomarkers that can become an eff ective tool for studying the susceptibility or resistance of teeth to pathological lesions, in the cervical region in particular.