title: An unusual staining of the tooth roots: a case report with histological and micro-analytical studies.
abstract: The discoloration of tooth roots is rare. We report here a 22-year-old Japanese woman with blackish-brown staining of the roots of the upper and lower third molars. Staining was found in the dentin and cementum. Electron probe X-ray microanalysis showed no significant difference in the composing elements between the stained tooth root and control tooth. Fluorescent bands coincided with staining in the dentin of the root and cementum along the incremental lines under confocal laser-scanning microscope.
authors.affiliation: Department of Oral Diagnosis, School of Dentistry, Iwate Medical University, Morioka, Japan. yfukukta@iwate-med.ac.jp
authors.forename: Y
authors.initials: Y
authors.lastname: Fukuta
authors.forename: Y
authors.initials: Y
authors.lastname: Takeda
authors.forename: Y
authors.initials: Y
authors.lastname: Fukuta
authors.forename: M
authors.initials: M
authors.lastname: Totsuka
authors.forename: Y
authors.initials: Y
authors.lastname: Yoshida
authors.forename: S
authors.initials: S
authors.lastname: Hayashi
authors.forename: J
authors.initials: J
authors.lastname: Niitsu
authors.forename: H
authors.initials: H
authors.lastname: Yamamoto
mesh_terms: D000328:Adult; D000900:Anti-Bacterial Agents / Q000009:adverse effects*; D003739:Dental Cementum / Q000473:pathology; D003804:Dentin / Q000473:pathology; D004577:Electron Probe Microanalysis; D005260:Female; D005453:Fluorescence; D006801:Humans; D018613:Microscopy, Confocal; D013752:Tetracycline / Q000009:adverse effects*; D014075:Tooth Discoloration / Q000209:etiology*; D014092:Tooth Root / Q000473:pathology*
chemical_list: D000900:Anti-Bacterial Agents; D013752:Tetracycline