Hellwig, Elmar; Polydorou, Olga; Lussi, Adrian; Kielbassa, Andrej M; Altenburger, Markus J (2010). The influence of saliva on the dissolution of calcium fluoride after application of different fluoride gels in vitro. Quintessence international, 41(9), pp. 773-7. Berlin: Quintessenz Verlags-GmbH
Full text not available from this repository.OBJECTIVE: To determine the formation and dissolution of calcium fluoride on the enamel surface after application of two fluoride gel-saliva mixtures. METHOD AND MATERIALS: From each of 80 bovine incisors, two enamel specimens were prepared and subjected to two different treatment procedures. In group 1, 80 specimens were treated with a mixture of an amine fluoride gel (1.25% F-; pH 5.2; 5 minutes) and human saliva. In group 2, 80 enamel blocks were subjected to a mixture of sodium fluoride gel (1.25% F; pH 5.5; 5 minutes) and human saliva. Subsequent to fluoride treatment, 40 specimens from each group were stored in human saliva and sterile water, respectively. Ten specimens were removed after each of 1 hour, 24 hours, 2 days, and 5 days and analyzed according to potassium hydroxide-soluble fluoride. RESULTS: Application of amine fluoride gel resulted in a higher amount of potassium hydroxide-soluble fluoride than did sodium fluoride gel 1 hour after application. Saliva exerted an inhibitory effect according to the dissolution rate of calcium fluoride. However, after 5 days, more than 90% of the precipitated calcium fluoride was dissolved in the amine fluoride group, and almost all potassium hydroxide-soluble fluoride was lost in the sodium fluoride group. Calcium fluoride apparently dissolves rapidly, even at almost neutral pH. CONCLUSION: Considering the limitations of an in vitro study, it is concluded that highly concentrated fluoride gels should be applied at an adequate frequency to reestablish a calcium fluoride-like layer.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
04 Faculty of Medicine > School of Dental Medicine > Department of Preventive, Restorative and Pediatric Dentistry |
UniBE Contributor: |
Lussi, Adrian |
ISSN: |
0033-6572 |
Publisher: |
Quintessenz Verlags-GmbH |
Language: |
English |
Submitter: |
Eveline Carmen Schuler |
Date Deposited: |
04 Oct 2013 14:08 |
Last Modified: |
05 Dec 2022 14:00 |
PubMed ID: |
20806102 |
Web of Science ID: |
000282140200009 |
URI: |
https://boris.unibe.ch/id/eprint/408 (FactScience: 198715) |
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