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Scanning electron microscopic study of giant tubule content in bovine dentin
Author(s) -
DYNGELAND TROND,
FOSSE GISLE
Publication year - 1987
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.1600-0722.1987.tb01385.x
Subject(s) - tubule , odontoblast , anatomy , chemistry , dentin , matrix (chemical analysis) , dentinal tubule , proximal tubule , collagen fibril , materials science , composite material , biology , kidney , endocrinology , chromatography
— Incisal segments of unerupted permanent incisors from l/Z‐l l/2‐yr‐old calves were fractnred along an axiomesiodistal plane exposing the organic components within the giant tubule lumina situated in this plane. Along the lining wall of the pulpal vasclurized giant tub & portion, large flattened cells and a few odontoblasts were situated in shallow depressions. Just incisal to the vascular loop numerous cells were seen, both along the giant tubule wall and enclosed within a loosely textured collagsnous matrix. Further incisally, the number and size of the cells decreased, and they were embedded in a compact nnmineraPized collagenous matrix that completely filled out the giant tubule lumina. This matrix consisted of fibrils regularly arranged in separate bundles whose orientation was mainly longitudinal. The initial origins of the giant tubes were filled with coarse Fmhrils being about three times thicker than those of the luminal matrix and those of the circumpulpal dentin proper.