In vivo and in vitro study of /sub 90/Sr in developing rat molar enamel

Journal Article · Mon Dec 01 00:00:00 EST 1980 · J. Dent. Res.; (United States)

OSTI ID:5502118

White, B A; Deaton, T G; Bawden, J W

The uptake patterns of /sub 90/Sr in developing rat molar enamel were studied in vivo and in vitro. Autoradiographic methods were used that preclude loss or translocation of tracers associated with water-soluble compounds in the sections. In eight-day-old rats injected with the tracer, /sub 90/Sr uptake in the enamel was significantly less than for dentin and bone, particularly at early sacrifice times. The uptake pattern of 90Sr was somewhat different from that previously observed for /sub 45/Ca. The in vitro experiments indicated that the viable intact enamel organ limits uptake of /sub 90/Sr by enamel in both the secretory and maturation phases of enamel formation.

• OSTI ID: 5502118
• Journal Information: J. Dent. Res.; (United States), Vol. 59:12
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BONE TISSUES
RADIONUCLIDE KINETICS
DENTIN
ENAMELS
STRONTIUM 90
UPTAKE
TEETH
ONTOGENESIS
AUTORADIOGRAPHY
IN VITRO
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BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
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DIGESTIVE SYSTEM
EVEN-EVEN NUCLEI
INTERMEDIATE MASS NUCLEI
ISOTOPES
MAMMALS
NUCLEI
ORAL CAVITY
RADIOISOTOPES
RODENTS
STRONTIUM ISOTOPES
TISSUES
VERTEBRATES
YEARS LIVING RADIOISOTOPES
560152* - Radiation Effects on Animals- Animals