METHOD FOR MODIFIED INDEX ASSESSMENT OF DENTAL TISSUE RESISTANCE Russian patent published in 2014 - IPC A61B5/53 A61C19/04 A61B10/00 

FIELD: medicine.

SUBSTANCE: method involves measuring an enamel electrical conductivity and assessing a light-induced fluorescence of a dental tissue in the lesion. A current intensity within the lesion of no more than 0.2 mcA and the absence of the enamel glow testify to the enamel intactness with zero points assigned. The current intensity of 0.21 to 1.99 mcA and the enamel glow testify to the preclinical enamel changes with 0.1 points assigned. The current intensity of 2.0 to 3.99 mcA and the enamel glow testify to primary caries changes at the stage of dead spot with 0.4 points assigned. The current intensity of 4.0 to 5.99 mcA and the enamel glow testify to primary caries changes at the stage of dead spot with 0.7 points assigned. The current intensity of 6.0 to 7.99 mcA and the enamel glow testify to primary caries changes at the stage of deep white spot with 1 point assigned. A dental tissue resistance index (RIdt) is calculated by formula: RIdt=(F0×0+F1×0.1+F2×0.4+F3×0.7+F4×1)/n, wherein F0 is the number of teeth with the intact enamel; F1 is the number of teeth with the preclinical enamel changes ; F2 is the number of teeth with caries enamel changes at the stage of dead spot; F3 is the number of teeth with caries enamel changes at the stage of white spot; F4 is the number of teeth with caries enamel changes at the stage of deep white spot; n is the number of intact teeth having preclinical and early clinical changes. The index is calculated prior to and after the therapeutic-preventive course. A positive difference of the indices prior to and after the therapeutic course testifies to the adequacy of the conducted therapy. The above difference being zero or less testifies to the necessity of the recurrent course or changes in the therapy.

EFFECT: method provides assessing the dental tissues taking into account the preclinical and early changes.

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