Zelante F, de Campos C M, Simões W
Oral Surg Oral Med Oral Pathol. 1980;49(1):75-8. doi: 10.1016/0030-4220(80)90033-x.
Microorganisms were absent in the remaining pulp stumps of twenty teeth which had been exposed to caries and contaminated at the pulpal chamber level. We have demonstrated that microorganisms are not carried to the deepest areas of the pulp when the basic procedure is strict antisepsis applied to the living pulp stump. A sterile and living pulp stump wound contributes to an adequate biologic sealing of the apical foramen. Of all the isolated microorganisms, the alpha hemolytic Streptococcus was most frequently found in all examined cases, in pure or mixed cultures, demonstrating once again he prodominance of that type of microorganism when pulpal injury occurs.
在20颗因龋齿而暴露且牙髓腔被污染的牙齿的剩余牙髓残端中未发现微生物。我们已经证明，当对活的牙髓残端采取严格的消毒基本程序时，微生物不会被带到牙髓的最深处。无菌且有活力的牙髓残端伤口有助于根尖孔的充分生物性封闭。在所有分离出的微生物中，α溶血性链球菌在所有检查病例中最常被发现，无论是纯培养还是混合培养，这再次证明了牙髓损伤时该类微生物的优势地位。
