Bovine dental fluorosis: histologic and physical characteristics

Journal Article · Sat Apr 01 04:00:00 EST 1978 · Am. J. Vet. Res.; (United States)

OSTI ID:6498544

Shearer, T R; Kolstad, D L; Suttie, J W

Incisor teeth from 5- to 6-year-old Holstein-Friesian cattle maintained on a ration averaging 40 ppm F annually from 4 months of age were analyzed by a variety of histologic techniques. These techniques included photomicroscopy, microradiography, protein staining, and microhardness testing. The features of fluorotic enamel that were noted were: hypomineralized outer enamel, coronal cementum hyperplasia, disrupted subsurface pigment band, hypoplastic pits, puckered incremental lines, periodic radiolucent regions, positive protein staining, and decreased microhardness of the outer enamel. These results were similar to the lesions of dental fluorosis observed in other species, and explain the external appearance of fluorotic bovine teeth observed under field conditions.

• Research Organization: Univ. of Oregon Health Sciences Center, Portland
• OSTI ID: 6498544
• Journal Information: Am. J. Vet. Res.; (United States), Journal Name: Am. J. Vet. Res.; (United States) Vol. 39:4; ISSN AJVRA
• Country of Publication: United States
• Language: English

Related Subjects

560305* -- Chemicals Metabolism & Toxicology-- Vertebrates-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
BIOLOGICAL EFFECTS
CATTLE
DIGESTIVE SYSTEM
DOMESTIC ANIMALS
ELEMENTS
FLUORINE
HALOGENS
INJURIES
MAMMALS
NONMETALS
ORAL CAVITY
RUMINANTS
TEETH
VERTEBRATES