Effects of Protective Surface Coating on Fluoride Release and Recharge of Recent Uncoated High-Viscosity Glass Ionomer Cement

• Main Authors: Nantawan Krajangta (Author), Chayanee Dulsamphan (Author), Tongjai Chotitanmapong (Author)
• Format: Book
• Published: MDPI AG, 2022-12-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.
• Notes: 10.3390/dj10120233; 2304-6767
• Keywords: high-viscosity glass ionomer cement; surface coating; fluoride release; fluoride recharge; Dentistry; RK1-715
• Source: Dentistry Journal, Vol 10, Iss 12, p 233 (2022)

The ability to release and recharge fluoride is a property of glass ionomer cement materials, which is an advantage for patients with a high caries risk. The purpose of this study was to evaluate the amount of released and recharged fluoride in recent uncoated high-viscosity glass ionomer cement (Ketac^TM Universal Aplicap^TM) with different surface coatings and at different time points. In total, 135 cylindrical-shaped specimens were equally divided into the following three groups: Ketac^TM Universal Aplicap^TM, Ketac^TM Molar Aplicap^TM, and Ketac^TM Fil Plus Aplicap^TM. The different coatings performed on each group were as follows: uncoated, coated with Ketac^TM Glaze, and coated with G-Coat Plus^TM. The amounts of released and recharged fluoride were measured at 24 h and at weeks 1, 2, 3, and 4. The recharging agent was a 1.23% APF gel. Ketac^TM Universal Aplicap^TM showed the highest released fluoride at all time points and the highest recharged fluoride at weeks 1, 2, and 3. Both the Ketac^TM Glaze- and G-Coat Plus^TM-coated specimens presented significantly lower released and recharged fluoride ions than the uncoated group at all time points (<i>p</i> < 0.001). Coating with G-Coat Plus^TM significantly decreased the released and recharged fluoride compared to the coating with Ketac^TM Glaze at almost all time points (<i>p</i> < 0.05), except for weeks 1 and 2. The application of coating agents reduced the amount of released and recharged fluoride by the Ketac^TM Universal Aplicap^TM.