期刊
DENTAL MATERIALS JOURNAL
卷 30, 期 6, 页码 898-903出版社
JAPANESE SOC DENTAL MATERIALS DEVICES
DOI: 10.4012/dmj.2011-101
关键词
S-PRG filler; Root canal dentin; Endodontic material; Anti-caries; Ion release
Objective: This study aimed to evaluate a prototype surface reaction-type pre-reacted glass-ionomer (S-PRO) filler-containing endodontic sealer (S-PRO sealer) in terms of its ion-releasing ability and the incorporation of the released ions by root canal dentin. Materials and Methods: The concentration of ions in the set S-PRO sealer was measured by ICPS and with a fluoride ion electrode. Element mapping and chemical component bulk analysis of the outermost dentin of the S-PRG sealer-dentin interface were performed by SEM-EPMA. The incorporation depth of the elements in dentin was measured by element line scanning. Results and Discussion: Ions released from the S-PRG sealer (Al, B, F, Na, Si, Sr, and Zn) were detected over time. The incorporation of fluoride (F), strontium (Sr), silicon (Si), and boron (B) was observed along the outermost dentin of the S-PRG sealer-dentin interface by EPMA analysis, and the incorporation depth increased with prolonged immersion. Conclusion: The continuous release of ions from the S-PRG sealer and their subsequent incorporation by root canal dentin were confirmed.
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