METHOD FOR DETERMINATION OF DEGREE OF MARGINAL ADAPTATION OF COMPOSITE HERMETIC TO HARD TOOTH TISSUES Russian patent published in 2010 - IPC A61C19/04 

FIELD: medicine.

SUBSTANCE: invention refers to medicine and is intended for determination of marginal adaptation of composite hermetic to hard tooth tissues. After composite hermetic sealing of fissures, dental deposit is removed thoroughly. A tooth is saliva-isolated with cotton swabs. An investigated tooth surface is thoroughly air-dried. A passive electrode is fixed in the oral cavity. A microdrop of electrolyte - 10% calcium chloride is applied on a tooth surface. An active electrode is applied on a point on the hermetic-tooth interface. Electric current of power - 3-5 V is passed. If the electrical conduction of hard tooth tissues is 0-1 mcA, complete marginal adaptation of the hermetic is diagnosed. If said value exceeds 1 mcA, disordered marginal adaptation of hermetic to hard tooth tissues is diagnosed.

EFFECT: method allows for early determination of loss of sealing of coating, improves accuracy of determination of degree of marginal adaptation of composite hermetic to hard tooth tissues.

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