Анализ возрастной динамики изменений костной ткани альвеолярной части нижней челюсти у женщин зрелого возраста

Abstract

Abstract Background: Osseous tissue age changes concern not only bone structures but also their density and mineral content. The aim of investigation – comparative analysis of the age changes of morphological indexes, density and mineral content of the osseous tissue of the alveolar part of the lower jaw in female individuals of mature age with preserved teeth row. Material and methods: 50 radiovisiograms of the individuals in age 22-35 years and 36-60 years were studied, which were taken in different Lviv polyclinics. The examination was made on the dental radiovisiograph SIEMENS with softwear TROPHY RADIOLOGY. Osseous tissue density was measured in standart units of grey. 8 minerals content(Ca, P, Na, Mg, K, Zn, Fe, Sr) was studied with atomic absorption spectral analysis of the 20 bone fragments of the jaws (postextractional material) with the usage of the dynamo ИВС-28 and spectrograph СТЭ-1. Numarical data were worked by variation statistic method. Results: Age rebuilding of the alveolar part of the lower jaw and also its density and mineral content age changes were determined in women of mature age. Alveolar part of the lower jaw relative height has different dynamic on the different dentomandibular segments level, but independent from its increase or decrease, osseous tissue density decreases significantly with age, as with five mineral elements content – calcium, phosphorus, magnesium, strontium and iron. Conclusions: Determined regularity of the age rebuilding and dynamic of the density and mineral content should be taken to consideration while preparing lower jaw to surgical or prosthetic manipulations, connected with different types of prosthetic treatment after teeth loss.