Uptake and retention of fluoride by teeth of dogs of different ages
| Autor: | M. Saunders, S.M. Weidmann |
|---|---|
| Rok vydání: | 1969 |
| Předmět: |
Aging
Enamel paint Chemistry business.industry Nitrogen Dentistry Cell Biology General Medicine Mineralization (biology) stomatognathic diseases chemistry.chemical_compound Fluorides Dogs stomatognathic system Otorhinolaryngology visual_art Dentin visual_art.visual_art_medium Animals Calcium business Dental Enamel General Dentistry Fluoride Tooth |
| Zdroj: | Archives of oral biology. 14(4) |
| ISSN: | 0003-9969 |
| Popis: | Fluoride uptake and retention by teeth were studied in young and old groups of dogs, which had been given drinking water containing 150 ppm fluoride. A correlation was found between fluoride uptake and degree of mineralization of the dental structures. In young dogs significant amounts of fluoride were taken up by enamel and crown and root dentine. All these structures seemed incompletely mineralized compared with the corresponding tissues of old dogs, in which there was no significant increase of fluoride. In teeth of young dogs, the fluoride was not retained by enamel, in contrast to dentine after fluoride administration was discontinued. It is postulated that in enamel a superficial uptake occurs by ionic exchange, whereas in dentine some fluoride is incorporated more firmly by the formation of new tissue. This would account for its greater retention by dentine. These findings are discussed and related to the situation in man. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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