STUDIES ON BLOOD GROUP SPECIFIC SUBSTANCE IN THE DENTAL HARD TISSUE -IDENTIFICATION OF A. B. O. BLOOD GROUPS FROM DENTAL HARD TISSUE LEFT STANDING UNDER VARIOUS CONDITIONS-

치아편조직의 혈형물질 검출에 관한 실험적 연구 -제매장조건하의 치아경조직에서 혈액형판정-

The author studied on the blood groups by the elution tests with teeth left standing under various conditions, and the following results were obtained. 1) The blood group identification with dental hard tissue proved to be possible. 2) In the cases of teeth left under various conditions-formalin fixation, standing in air, soil embedding and immersing in water-the identification of blood groups was possible in every case without any difference on difficulties. 3) The reaction of agglutination was somewhat more obvious in dentin substance than in enamel. 4) About 10 mg of dental hard tissue was recommendable for blood grouping.