Influence of elemental composition on the stability of restorative structures in permanent teeth in children from different geographical areas of residence.

OBJECTIVE: Aim: To evaluate the correlation between the mineral composition of the hard tissues of the teeth and the percentage of defects and loss of various restorative materials in permanent teeth in children living in the lowland and mountainous geographical zones of Transcarpathian region. PATIENTS AND METHODS: Materials and Methods: 1050 permanent teeth of different groups filled with different materials were studied. An ultra-microscopic examination by the method of raster electron microscopy was carried out and the mineral composition of the teeth was evaluated. On the AZtecOne microanalytical accelerator complex with the X-MaxN20 detector. RESULTS: Results: Improbable differences in indicators were established in children living in lowland and mountainous areas of Zakarpattia region, when using glass ionomer cements both after 6 months (6.7%; 7.2%; p>0.05) and after 12 months. months (20.0%; 16.3%; p>0.05); with direct composite restorations after 6 months (4.4%; 6.0%; p>0.05) and after 12 months (9.6%; 11.1%; p>0.05); with indirect composite restorations after 6 months (2.1%; 4.0%; p>0.05) and after 12 months (10.5%; 10.0%; p>0.05). CONCLUSION: Conclusions: The reason for the higher percentage of fillings made of glass ionomer cements in the permanent teeth of children from mountainous areas is the significantly lower calcium content and their mineral composition (p>0.05).