Invasion of bacteria into dentinal tubules. Experiments in vivo and in vitro.

摘要: Penetration of bacteria into the tubules intact dentin exposed by fracture was compared in vitro pairs teeth, one which each pair mounted with an intrapulpal hydrostatic pressure equivalent to 30 mm Hg. The teeth were incubated at 37°C for 21 days. Intra-pair comparisons vivo made bacterial invasion dentinal beneath ground surfaces and fractured or acid-treated surfaces, 1 week. It found that outward fluid flow due may mechanically hinder growth tubules. Of greater importance as obstruction blocking outer apertures grinding debris. This barrier, however, seemed be removed after some days this would allow ingrowth vital dentin. is concluded have been left unprotected are covered plaque should treated ...