Presence of bacteria in dentinal tubules.
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.
Kina
José Ricardo
JR
Division of Periodontics, Department of Surgery and Integrated Clinic, Dental School of Araçatuba, São Paulo State University, Araçatuba, SP, Brazil. kinajr@hotmail.com
Kina
Juliana
J
Kina
Eunice Fumico Umeda
EF
Kina
Mônica
M
Soubhia
Ana Maria Pires
AM
D001421:Bacteria, Anaerobic / Q000302:isolation & purification; D003804:Dentin / Q000382:microbiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010514:Periodontal Pocket / Q000382:microbiology*; D014092:Tooth Root / Q000382:microbiology*