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Long-term fluoride release of visible light-activated composites in vitro: a correlation with in situ demineralisation data.
- Source :
-
Caries research [Caries Res] 1993; Vol. 27 (2), pp. 117-23. - Publication Year :
- 1993
-
Abstract
- Fluoridated composites are able to reduce or inhibit secondary caries around fillings. The aims of this study were firstly to investigate the amount of F released in vitro from composites with a F content between 0 and 26 vol% as a function of time over a 1-year period. A second aim was to correlate the in vitro data on F release with enamel demineralisation data in situ after a 1-month period. The results show that all fluoridated composites release sizable amounts of F in solution, the total amounts of F released from three composites were proportional to log t over at least 1 year. In one case proportionality of the total amount of F released with t was observed. Possible mechanisms of F release are considered. The results presented also show a linear relation between the log of in vitro F release data and the effects on enamel demineralisation in situ next to the composite. Extrapolation of the data reveals that a F release of about 200-300 micrograms/cm2 over a 1-month period from a fluoridated composite would completely inhibit secondary caries under plaque conditions.
- Subjects :
- Acrylic Resins chemistry
Composite Resins analysis
Delayed-Action Preparations
Fluorides administration & dosage
Fluorides analysis
Humans
Polyurethanes chemistry
Time Factors
Tooth Demineralization prevention & control
Composite Resins chemistry
Dental Enamel pathology
Dental Restoration, Permanent
Fluorides chemistry
Resin Cements
Tooth Demineralization pathology
Subjects
Details
- Language :
- English
- ISSN :
- 0008-6568
- Volume :
- 27
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- Caries research
- Publication Type :
- Academic Journal
- Accession number :
- 8319254
- Full Text :
- https://doi.org/10.1159/000261528