Kina José Ricardo, Kina Juliana, Kina Eunice Fumico Umeda, Kina Mônica, Soubhia Ana Maria Pires
Division of Periodontics, Department of Surgery and Integrated Clinic, Dental School of Araçatuba, São Paulo State University, Araçatuba, SP, Brazil.
J Appl Oral Sci. 2008 May-Jun;16(3):205-8. doi: 10.1590/s1678-77572008000300008.
This study demonstrated that a significant number of bacteria is present in the radicular dentinal tubules of periodontally diseased human teeth. Ten periodontally diseased teeth were prepared and stained by Brown and Brenn technique for histological examination. Bacteria were detected in all teeth. It is suggested that bacteria may invade dentinal tubules exposed to periodontal pocket and are very hard to be eliminated by conventional mechanical and chemical periodontal therapy. Contaminated dentinal tubules of periodontally diseased teeth can thus act as active bacterial reservoirs to promote recolonization of mechanically treated root surfaces, which could interfere with the periodontal healing and progression of the disease.
这项研究表明，在患有牙周病的人类牙齿的根管牙本质小管中存在大量细菌。制备了十颗患有牙周病的牙齿，并采用布朗和布伦染色技术进行染色，以进行组织学检查。在所有牙齿中均检测到了细菌。有人认为，细菌可能侵入暴露于牙周袋的牙本质小管，并且很难通过传统的机械和化学牙周治疗方法清除。因此，患有牙周病的牙齿中受污染的牙本质小管可作为活跃的细菌储存库，促进机械处理过的牙根表面的再定植，这可能会干扰牙周愈合和疾病进展。
