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Appearance of chemically treated root canal walls in the scanning electron microscope
Author(s) -
KOSKINEN KARI P.,
MEURMAN JUKKA H.,
STENVALL HANNELE
Publication year - 1980
Publication title -
european journal of oral sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.802
H-Index - 93
eISSN - 1600-0722
pISSN - 0909-8836
DOI - 10.1111/j.1600-0722.1980.tb01260.x
Subject(s) - dentinal tubule , bone decalcification , dentin , scanning electron microscope , chemistry , sodium hypochlorite , distilled water , root canal , dissolution , pulp (tooth) , saline , dentistry , nuclear chemistry , anatomy , materials science , chromatography , composite material , biology , medicine , organic chemistry , endocrinology
– The dissolving effects of seven endodontic solutions on unprepared root canal walls of young intact human premolars were evaluated with the scanning electron microscope. After incubation at 37°C in distilled water or isotonic saline for 10 min the predentinal surfaces showed no changes as compared with untreated controls. The demineralizers Decal® and Largal Ultra® had little effect on the organic tissues but caused some decalcification where mineralized dentin was exposed. Nelex® caused concentration‐dependent coagulation of the residual pulp tissue, making typical ring structures on the surfaces. Sodium hypochlorite at 2.5% and 5.0% dissolved most of the predentin, exposing the globular appearance of the mineralizing front. Salvizol® produced small globules on otherwise intact surfaces. Dissolution of both the organic and inorganic tissue of the root canal wall would require the combined use of two of the solutions studied.