Relationship of cheek tooth abrasion to fluoride-induced permanent incisor lesions in livestock.
Am J Vet Res
; 48(10): 1498-503, 1987 Oct.
Article
em En
| MEDLINE
| ID: mdl-3674560
ABSTRACT
Teeth from cattle, sheep, and horses that ingested various fluoride intakes and teeth from field studies of these species plus deer, elk, and bison were examined for abnormalities. Approximately 99,000 animals in 322 herds were examined for fluorosis. From field studies, 988 cattle of various ages and with different degrees of dental fluorosis were slaughtered and necropsied. The severity of fluoride-induced mottling, hypoplasia, and abnormal abrasion of paired permanent incisor teeth was correlated with abrasion of premolar and molar (cheek) teeth that form and mineralize at approximately the same age. Severe irregular wear of cheek teeth impaired mastication and resulted in poor utilization of feed and unthriftiness. Excessive amounts of fluoride during tooth formation and mineralization induce characteristic dental changes. Offspring from the fluoride-affected animals did not have discernible fluoride-induced lesions in the deciduous teeth.
Buscar no Google
Base de dados:
MEDLINE
Assunto principal:
Doenças dos Ovinos
/
Abrasão Dentária
/
Doenças dos Bovinos
/
Intoxicação por Flúor
/
Doenças dos Cavalos
/
Fluorose Dentária
Limite:
Animals
Idioma:
En
Revista:
Am J Vet Res
Ano de publicação:
1987
Tipo de documento:
Article