title: [Investigations of centrifugal penetration of the tooth root hard substances by hydrogen peroxide].
abstract: After application of hydrogen peroxide into the root canal of extracted teeth of patients between the ages of 18 and 30 years the antiseptic could be detected on the root surface by means of iodometry and in tooth cross sections in dentine and cementum by means of staining reaction (benzidine-peroxidase solution). Out of the root canals which were apically not passable and coronally closed the first traces of the instilled 5% hydrogen peroxide appeared after 14 min 45 sec on the root surface. In the dentine a mean penetration depth of hydrogen peroxide up to 1.28 mm (apical root area), 1.45 mm (middle root third) and 1.95 mm (coronal root area) could be measured. Best results were obtained after rinsing/suction treatment of the root canal, especially in combination with low-frequency ultrasound.
authors.affiliation: Zentrums für Zahn-, Mund- und Kieferheilkunde, Friedrich-Schiller-Universität Jena.
authors.forename: J
authors.initials: J
authors.lastname: Hille
authors.forename: E
authors.initials: E
authors.lastname: Glockmann
authors.forename: G
authors.initials: G
authors.lastname: Lange
mesh_terms: D000293:Adolescent; D000328:Adult; D003739:Dental Cementum / Q000187:drug effects / Q000502:physiology; D003806:Dentin Permeability; D006801:Humans; D006861:Hydrogen Peroxide / Q000494:pharmacology / Q000627:therapeutic use*; D012388:Root Canal Irrigants / Q000494:pharmacology / Q000627:therapeutic use*
chemical_list: D012388:Root Canal Irrigants; D006861:Hydrogen Peroxide
vernacular_title: Untersuchungen zur zentrifugalen Durchdringung der Zahnwurzelhartsubstanzen durch Wasserstoffperoxide.