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Musculoskeletal disorders (MSD) occupy a leading place among the diseases affecting the dental health of children. The composition and properties of the oral fl uid are an appropriate refl ection of the various processes in the body and can help to study the pathogenesis of tooth decay associated with MSD.The aim of the study – to determine mineral ingredients composition of saliva in children with MSD and to identify its relationship with dental caries.Materials and Methods. 90 5-year old children were examined and divided into three groups of 30 persons in each: fi rst – children with dental caries and MSD; the second – children with dental caries, MSD and undifferentiated connective tissue disease (UCTD); the third – children with dental caries without somatic pathology (comparison group). The deft values and levels of caries prevalence were evaluated. Mineral components of the saliva were determined by photometric method.Results and Discussion. The deft value was (6.17±0.52) in children with MSD, (8.00±0.50) in children with MSD and UCTD and (4.37±0.47) in children of the comparison group. In children with MSD total calcium level in the saliva was 33.80 % lower compared to that in comparison group and 25.53 % higher than in children with MSD and UCTD. The concentration of inorganic phosphorus in the saliva of children with MSD was 29.73 % lower compared to that in comparison group and 15.71 % higher than in children with MSD and UCTD. The same pattern has shown the magnesium level. Alkaline phosphatase activity in the saliva of both groups of children with MSD was lower than in comparison group.Conclusions. In the saliva of children with dental caries and MSD the defi ciencies of total calcium, inorganic phosphorus and magnesium, as well as reduced activity of alkaline phosphatase were revealed.

Вміст мінеральних компонентів у ротовій рідині дітей дошкільного віку з патологією опорно-рухового апарату