Transmission electron microscopic characterization of hypersensitive human radicular dentin

Journal Article · Fri Jun 01 04:00:00 EDT 1990 · Journal of Dental Research; (USA)

DOI:https://doi.org/10.1177/00220345900690061401· OSTI ID:6716579

Yoshiyama, M; Noiri, Y; Ozaki, K; Uchida, A; Ishikawa, Y; Ishida, H ^[1]

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1. Tokushima Univ. School of Dentistry (Japan)

Transmission electron microscopy (TEM) and x-ray microanalysis (XMA) were used for the study of the ultrastructure of the lumens of dentinal tubules in superficial layers of dentin specimens obtained by use of a new biopsy technique from both hypersensitive and naturally desensitized areas of exposed root surfaces, in vivo. The TEM images showed clearly that the lumens of most of the tubules were occluded with mineral crystals in naturally desensitized areas, but such lumens were empty and surrounded with peritubular and intertubular dentin in hypersensitive areas. Moreover, electron-dense structures that lined peritubular dentin were observed in the empty lumens of dentinal tubules.

• OSTI ID: 6716579
• Journal Information: Journal of Dental Research; (USA), Journal Name: Journal of Dental Research; (USA) Vol. 69:6; ISSN 0022-0345; ISSN JDREA
• Country of Publication: United States
• Language: English

Related Subjects

550602* -- Medicine-- External Radiation in Diagnostics-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
ALKALINE EARTH METALS
ANIMALS
CALCIUM
CHEMICAL ANALYSIS
CHEMICAL COMPOSITION
CRYSTALS
DENTIN
DENTISTRY
DIGESTIVE SYSTEM
ELECTRON MICROPROBE ANALYSIS
ELEMENTS
MAMMALS
MAN
MEDICINE
METALS
MICROANALYSIS
ORAL CAVITY
PRIMATES
TEETH
VERTEBRATES