Fluoride distribution in dentine and cementum in human permanent teeth with vital and non-vital pulps.
Twenty-two selected permanent teeth [11 with vital pulps and 11 with non-vital (necrotic) pulps] were obtained from patients aged from 20 to 73 yr in Nagoya, Japan. Fluoride (F) profiles in tooth samples were examined by using an abrasive micro-sampling technique. F levels in the pulpal dentine were significantly higher in vital than non-vital teeth for each age group, although there were observed increases of F with age. In the cementum the F levels were strongly related to age and there were few differences in profiles and levels of F between vital and non-vital teeth. It was concluded that vital pulp is an important factor for the pulpal dentine to absorb fluoride.
Department of Operative Dentistry, School of Dentistry, Aichi-Gakuin University, Nagoya, Japan.
M
M
Mukai
M
M
Ikeda
T
T
Yanagihara
G
G
Hara
K
K
Kato
K
K
Ishiguro
H
H
Nakagaki
C
C
Robinson
D000328:Adult; D000368:Aged; D000375:Aging; D003739:Dental Cementum / Q000737:chemistry*; D003782:Dental Pulp / Q000378:metabolism / Q000502:physiology*; D003788:Dental Pulp Diseases / Q000378:metabolism; D003804:Dentin / Q000737:chemistry*; D005459:Fluorides / Q000032:analysis* / Q000493:pharmacokinetics; D006801:Humans; D008875:Middle Aged; D010758:Phosphorus / Q000032:analysis
D010758:Phosphorus; D005459:Fluorides