Comparison of the Fluoride Ion Release from Composite and Compomer Materials under Varying pH Conditions—Preliminary In Vitro Study
Source abstract
Abstract
Fluoride prevents the demineralization and supports remineralization of enamel. It is important to maintain a constant low level of fluoride in the oral cavity at all times. Dental restorative materials that are used for this purpose contain NaF in their composition, which is a source of fluoride ions that diffuse into body fluids and surrounding tissues. Two such materials, the flowable composite material Wave (W) (SDI, Hamilton Parkway Itasca, Australia) and compomer material Freedom (F) (SDI, Hamilton Parkway Itasca, Australia), were studied in regards to their release of fluoride ions into various solutions imitating the oral environment: artificial saliva solution with the addition of hydrated calcium chloride (CaCl2) × 2H2O in the pH range of 4.5 and 5.5; artificial saliva free of calcium chloride in the pH range of 4.5, 5.5, 6.0, 7.0, and 7.5; deionized water; and saline solution. The results were assessed over a period of 7 days, i.e., 168 h. The Freedom (F) compomer showed the highest cumulative release of fluoride ions into artificial saliva solution at pH 4.5 (31.195 ± 10.461 μg F/mm2) and the lowest into saline solution (3.694 ± 1.115 μg F/mm2). The Wave (W) composite material revealed the highest cumulative release of fluoride ions into deionized water (7.982 ± 2.011 μg F/mm2); its lowest cumulative emission was observed in artificial saliva solution at pH 7.0 (1.391 ± 0.489 μg F/mm2). The amounts of released fluoride from the Freedom (F) compomer were considerably higher compared to the Wave (W) composite material. The ability to release the largest amounts of fluoride ions in an acidic environment results from the erosion of the surface layer. Different calcium content in available experimental and commercial artificial saliva preparations may influence the obtained results. Both the flowable Wave composite and Freedom compomer released more fluoride in an acidic environment with a pH of 4.5–5.5, but with different dynamics—Wave material had its maximum on the third day while Freedom on the first day of the experiment.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Dental Health and Care Utilization · Dental materials and restorations · Fluoride Effects and Removal
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Conservative Dentistry with Endodontics, Wroclaw Medical University, Krakowska 26, 50-425 Wroclaw, Poland
Department of Pediatric Dentistry and Preclinical Dentistry, Wroclaw Medical University, Krakowska 26, 50-425 Wroclaw, Poland
Face-Dent Privat Dental Office, Sloneczna 44a, 55-095 Dlugoleka, Poland
Department of Basic Sciences, Wroclaw Medical University, Bartla 5, 51-618 Wroclaw, Poland
Department of Maxillofacial Surgery, Wroclaw Medical University, Borowska 213, 50-556 Wrocław, Poland
Department of Rehabilitation and Orthopedics, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland
Department of Experimental Biology, Wrocław University of Environmental and Life Sciences, Norwida 27B, 50-375 Wroclaw, Poland
Department of Basic Chemical Sciences, Wroclaw Medical University, Borowska 211, 50-556 Wroclaw, Poland
Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, 50-422 Wroclaw, Poland
Funding
National Science Centre · Wroclaw Medical University
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