Link to the University of Pittsburgh Homepage
Link to the University Library System Homepage Link to the Contact Us Form

Fluoride uptake and release by composites and glass ionomers in a high caries challenge situation

Vieira, AR and Ribeiro De Souza, IP and Modesto, A (1999) Fluoride uptake and release by composites and glass ionomers in a high caries challenge situation. American Journal of Dentistry, 12 (1). 14 - 18. ISSN 0894-8275

[img] Plain Text (licence)
Available under License : See the attached license file.

Download (1kB)

Abstract

Purpose: To evaluate the behavior of composite resins and glass ionomer cements with regard to the uptake and release of fluoride, in a high caries challenge situation. Materials and Methods: Standard test specimens of glass ionomer cement (Chelon Fil), a resin-modified glass ionomer (Vitremer), two polyacid-modified composite resins (VariGlass and Dyract) and a composite resin (Heliomolar), were submitted for 14 days to demineralization and remineralization cycles in order to simulate a high caries challenge, while from the eighth day onward, a fluoridated dentifrice solution was applied for 5 minutes twice a day and the daily fluoride release of those materials to the mediums was quantified and compared. Fifteen test specimens were prepared for each material, making up a total of 75. Results: All materials studied, except for Heliomolar from day 4 to day 7 in the demineralizing solution, were capable of releasing fluoride in measurable quantities during the whole experiment. The fluoride amounts released by Chelon Fil, Vitremer, VariGlass and Dyract were significantly higher in the demineralizing solution (ANOVA, P < 0.05) than in the remineralizing solution, during almost the entire experiment. The fluoride amounts released by Heliomolar were significantly higher in the remineralizing solution (ANOVA, P < 0.05) than in the demineralizing solution, during almost the entire experiment. All materials studied were capable of uptaking fluoride from the dentifrice solution and of later releasing it to the solution, maintaining the release relatively constant and at a higher level than that seen between days 5 and 7.


Share

Citation/Export:
Social Networking:
Share |

Details

Item Type: Article
Status: Published
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Vieira, ARalexandre_vieira@pitt.eduARV11
Ribeiro De Souza, IP
Modesto, A
Date: 1 February 1999
Date Type: Publication
Journal or Publication Title: American Journal of Dentistry
Volume: 12
Number: 1
Page Range: 14 - 18
Schools and Programs: School of Dental Medicine > Dental Science
Refereed: Yes
ISSN: 0894-8275
MeSH Headings: Acrylic Resins--chemistry; Analysis of Variance; Compomers; Composite Resins--chemistry; Dentifrices--chemistry; Fluorides--analysis; Fluorides--chemistry; Glass Ionomer Cements--chemistry; Materials Testing; Methacrylates--chemistry; Polyurethanes--chemistry; Resin Cements--chemistry; Silicates--chemistry
PubMed ID: 10477993
Date Deposited: 18 Sep 2012 15:09
Last Modified: 02 Feb 2019 14:56
URI: http://d-scholarship.pitt.edu/id/eprint/14198

Metrics

Monthly Views for the past 3 years

Plum Analytics


Actions (login required)

View Item View Item