Advances in Clinical and Experimental Medicine

Title abbreviation: Adv Clin Exp Med
JCR Impact Factor (IF) – 2.1
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Index Copernicus  – 161.11; MEiN – 140 pts

ISSN 1899–5276 (print)
ISSN 2451-2680 (online)
Periodicity – monthly

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Advances in Clinical and Experimental Medicine

2019, vol. 28, nr 6, June, p. 815–823

doi: 10.17219/acem/94140

Publication type: original article

Language: English

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A comparison of the remineralizing potential of dental restorative materials by analyzing their fluoride release profiles

Alicja Porenczuk1,A,B,C,D, Bartłomiej Jankiewicz2,A,D,E, Magdalena Naurecka3,B,C, Bartosz Bartosewicz2,A,B, Bartosz Sierakowski3,B,C, Dariusz Gozdowski4,C, Jerzy Kostecki5,B, Barbara Nasiłowska3,B, Agnieszka Mielczarek1,A,E,F

1 Restorative Dentistry Department, Warsaw Medical University, Poland

2 Institute of Optoelectronics, Military University of Technology, Warszawa, Poland

3 Biomedical Engineering Center, Institute of Optoelectronics, Military University of Technology, Warszawa, Poland

4 Faculty of Agriculture and Biology, Department of Experimental Design and Bioinformatics, Warsaw University of Life Sciences, Poland

5 Electron Microscopy Laboratory, Institute of Optoelectronics, Military University of Technology, Warszawa, Poland

Abstract

Background. The accessibility of the remineralizing ions in teeth’s environment is essential for their incorporation into caries-affected dentin. Novel bioglass-reinforced materials capable of releasing fluoride, calcium and phosphates may be particularly useful in the tissue remineralization process. A novel restorative material, ACTIVA BioActive-Restorative (Pulpdent Corp., Watertown, USA), is a hydrophilic resin-modified glassionomer cement (RMGIC) enriched with bioglass particles and fortified with a patented rubberized polymer resin. Its application in restorative dentistry may be significant, promoting remineralization of carious lesions.
Objectives. The aim of the study was to compare the fluoride ion release profiles from a bioglass-reinforced RMGIC, a conventional glass-ionomer cement (GIC) and a nanohybrid restorative polymer resin.
Material and Methods. The quantity of fluoride ions released from ACTIVA, Ketac Molar Quick Aplicap and Tetric EvoCeram was assessed using a fluoride-specific electrode. The surface characteristics of the preand post-experimental specimens were studied using a scanning electron microscope (SEM) and confocal microscope. An X-ray powder diffraction (XRD) analysis was additionally used to examine the chemical compositions of the dental materials.
Results. The greatest quantity of fluoride ions was freed from the GIC specimens (20.698–54.118 ppm), followed by the bioglass-reinforced RMGIC (from 1.236 to 15.552 ppm) and nanohybrid polymer resin (0.370–1.148 ppm). The pre-experimental specimens of the bioglass-reinforced RMGIC were porous, while the post-experimental specimens were smoother with visible micro-cracks. The XRD analysis of the bioglass particles confirmed that the material was composed mainly of fluoride (27.70 mass%), silicon (15.62 mass%), aluminum (5.91 mass%), and calcium (5.40 mass%).
Conclusion. The fluoride ion release profile of ACTIVA was lower than the GIC Keta Molar Quick Aplicap, but significantly higher than the nanohybrid restorative polymer resin Tetric EvoCeram.

Key words

fluoride, scanning electron microscopy, bioactive glass, resin-modified glass-ionomer cement, confocal microscopy

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