Friedl, KH and Schmalz, G and Hiller, KA and Shams, M (1997) Resin-modified glass ionomer cements: Fluoride release and influence on Streptococcus mutans growth. EUROPEAN JOURNAL OF ORAL SCIENCES, 105 (1). pp. 81-85. ISSN 0909-8836,
Full text not available from this repository.Abstract
The aims of the present study were to measure the fluoride release of 1 glass ionomer cement, 1 cermet cement, 3 resin-modified glass ionomer cements and 1 compomer, and to determine the influence of each material on bacterial growth. Test specimens were eluted in saline for 180 days. Every 2 days, the specimens were transferred into fresh saline and the fluoride content of the solution was measured. Furthermore, 48-h, 14-d, 90-d, and 180-d eluates were inoculated with Streptococcus mutans and bacterial growth was recorded nephelometrically. Fluoride release dropped significantly over time for each material with values between 6.2 (Ketac-Silver) and 29.3 (Photac-Fil) ppm after 48 h to values between 0.6 (Ketac-Silver) and 1.7 (Ketac-Fil, Vitremer) ppm after 180 days. Each material reduced bacterial growth at each time of examination, but the effect decreased significantly over time with a maximum growth of 71.7% (Ketac-Fil) to 85.6% (Ketac-Silver) after 48 h and 94.7 (Vitremer) to 99.0% (Ketac-Silver) after 180 days (growth control = 100%). Both Ketac-Silver and Dyract showed a significantly lower inhibiting effect on bacterial growth than the other materials. The tested materials showed a good correlation between fluoride release and influence on bacterial growth. However, both effects dropped dramatically over the 180-days period.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | COMPOSITE; PLAQUE; RESTORATIONS; LACTOBACILLI; SURFACES; AMALGAM; ENAMEL; glass ionomer; cement; resin; fluoride; bacteria |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:32 |
| URI: | https://pred.uni-regensburg.de/id/eprint/51051 |
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