Published April 1975
| Version v1
Journal article
Isotopic study of the comparative uptake and release of ions by deciduous and permanent dental enamel
Description
A comparative study of the uptake and release of calcium, orthophosphate, strontium and sodium from decidus and permanent dental enamel has been made using radioactive techniques. The rates of uptake and release of orthophosphate, strontium and sodium were observed to be greater in deciduous than in permanent enamel. However, for calcium, the rate of uptake was observed to be greater in the deciduous than in the permanent enamel but the rate of release was observed to be smaller in the deciduous enamel. These results in conjunction with the findings of Tetteh (1974) suggest that most of the calcification in the early stages of development of dental enamel is by a hetero-ionic exchange. (author)
Abstract (French)
Dans une etude comparative de l' absorption et de la decharge de calcium d'orthophosphate, de strontium et de sodium, par l' email dental du type caduc et du type permanent, en employant des techniques radioactives, on a remarque que les evaluations de l' absorption et de la decharge d'orthophosphate, de strontium et de sodium, etaient plus grandes dans l' email caduc que dans l' email permanent. Cependant, pour le calcium, l'evaluation de l' absorption etait plus grande dans l' email caduc que dans l' email permanent, mais celle de la decharge etait plus petite dans l' email caduc. De concert avec les decouvertes de Tetteh (1974), ces resultats suggerent que la plus grande partie de la calcification dans les premiers stades de developpement de l'email des dents s'effectue par un echange hetero-ionique. (auteur)Additional details
Publishing Information
- Journal Title
- Ghana J. Sci.
- Journal Volume
- 15
- Journal Issue
- 1
- Series
- Ghana J. Sci.
- Journal Page Range
- 3-11
INIS
- Country of Publication
- Ghana
- Country of Input or Organization
- Ghana
- INIS RN
- 8324700
- Subject category
- S63: RADIATION, THERMAL, AND OTHER ENVIRONMENTAL POLLUTANT EFFECTS ON LIVING ORGANISMS AND BIOLOGICAL MATERIALS;
- Descriptors DEI
- CALCIUM 45; CARIES; DATA; DIET; ION EXCHANGE; PHOSPHORUS 32; SODIUM 22; STRONTIUM 89; TEETH; UPTAKE
- Descriptors DEC
- BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; CALCIUM ISOTOPES; DAYS LIVING RADIOISOTOPES; DIGESTIVE SYSTEM; DISEASES; EVEN-ODD NUCLEI; INFORMATION; INTERMEDIATE MASS NUCLEI; ISOTOPES; LIGHT NUCLEI; NUCLEI; ODD-ODD NUCLEI; ORAL CAVITY; PATHOLOGICAL CHANGES; PHOSPHORUS ISOTOPES; RADIOISOTOPES; SODIUM ISOTOPES; STRONTIUM ISOTOPES; YEARS LIVING RADIOISOTOPES