Evaluation of Fluoride Release, pH and Microhardness of Glass Ionomer Cements
Pesqui. bras. odontopediatria clín. integr
;
15(1): 23-29, 2015. tab
Article
in English
| LILACS
| ID: lil-796346
ABSTRACT
To evaluate fluoride release, pH and microhardness of glass ionomer cements (GIC). Material and Methods:
Four different cements Vidrion ® R (G1), Vitro Fil ® (G2), Maxxion ® (G3) and Magic Glass ® (G4) and a composite resin (G5 -control group) comprised the sample. Thirty specimens were manufactured (10 mm x 3 mm) and stored in deionized water. Analyses were performed after 24 hours, 7 days and 28 days. The following devices were used for measurements fluorometer, pH meter and microhardness tester. Data were analyzed by Kruskal-Wallis, Mann-Whitney, Friedman and Wilcoxon tests (α= 0.05) using the SPSS ® software (Statistical Package for Social Sciences) version 17.Results:
GICs were able to release fluoride; however, the amount released decreased with increasing immersion time (p <0.002). The pH of all products increased over time, the lowest value was identified for Magic Glass (5.93) and the highest for Maxxion (6.94) at time of 24 h. Materials showed significant decrease in surface microhardness, especially G4 for presenting the lowest recorded values (p <0.05).Conclusion:
GICs arefluoride-releasing restorative materials with pH favorable to oral homeostasis and good mechanical behavior...
Full text:
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Index:
LILACS (Americas)
Main subject:
Fluorine
/
Glass Ionomer Cements
/
Hardness Tests
Country/Region as subject:
South America
/
Brazil
Language:
English
Journal:
Pesqui. bras. odontopediatria clín. integr
Journal subject:
Dentistry
Year:
2015
Type:
Article
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