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Niger J Clin Pract. 2019 Jul;22(7):961-970. doi: 10.4103/njcp.njcp_644_18.

The evaluation of microleakage and fluoride release of different types of glass ionomer cements.

Author information

1
Department of Restorative Dentistry, Dicle University, Faculty of Dentistry, Diyarbakir, Turkey.
2
Department of Restorative Dentistry, Inonu University, Faculty of Dentistry, Malatya, Turkey.
3
Department of Restorative Dentistry, Faculty of Dentistry, Adiyaman University, Adiyaman, Turkey.
4
Department of Biostatistics, Dicle University, Faculty of Medicine, Diyarbakir, Turkey.

Abstract

Background:

The aim of this study was to evaluate six different glass ionomer cement (GIC)-based restorative materials through comparisons of microleakage and fluoride release.

Materials and Methods:

For microleakage, 30 teeth were randomly separated into 6 groups of 5: Group 1 (Dyract: compomer), Group 2 (Freedom: compomer), Group 3 (Equia: high-viscosity glass ionomer cements), Group 4 (Fuji IX: resin-modified glass ionomer cement), Group 5 (Ketac Molar: traditional glass ionomer cement [TGIC]) and Group 6 (Voco: TGIC). For fluoride release of six different GIC-based restorative materials, standard samples were prepared of 4 mm thickness and 7 mm diameter. A total of 60 samples were obtained as 10 samples from each group. The analyses were made using a Thermo Orion 720 A+ ionometer with the Orion fluoride electrode. At the end of 24 h, 72 h, 7 days, 14 days, and 30 days, the electrode was placed into the dish containing the sample, distilled water, and TISAB II; a reading was taken; and the value shown on the screen was recorded.

Results:

For microleakage, a statistically significant difference was determined between the groups in respect of the occlusal variable (P < 0.05), no statistically significant gingival variable (P > 0.05). About fluoride release: According to the repeated measures variance analysis results, the difference between the groups, and between the time-group interaction and according to time, was found to be statistically significant (P < 0.05).

Conclusions:

In terms of microleakage, it was concluded that all materials could be used in clinical applications. The Equia high-viscosity glass ionomer cements (HVGIC) was determined to be the material with the highest fluoride release value.

KEYWORDS:

Fluoride release; glass ionomer cement; microleakage

PMID:
31293262
DOI:
10.4103/njcp.njcp_644_18
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