Re-crystallization of bioactive glass mixed with various hardening agents
| Autor: | Kin-Weng Wong, Chi-Jen Shih, Yu-Cheng Hsiao, Chi-Sheng Chien |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
macromolecular substances 02 engineering and technology Apatite law.invention 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine stomatognathic system law Materials Chemistry medicine Fourier transform infrared spectroscopy Solubility Phosphoric acid Process Chemistry and Technology 030206 dentistry 021001 nanoscience & nanotechnology medicine.disease Surfaces Coatings and Films Electronic Optical and Magnetic Materials stomatognathic diseases Dentinal Tubule chemistry visual_art Bioactive glass Ceramics and Composites Hardening (metallurgy) visual_art.visual_art_medium Dentin hypersensitivity 0210 nano-technology Nuclear chemistry |
| Zdroj: | Ceramics International. 43:7026-7032 |
| ISSN: | 0272-8842 |
| Popis: | Bioactive glass (BG) is a potential material for treating dentin hypersensitivity due to its high solubility. In this study, a commercial BG powder (PerioGlas®, PG) mixed with various hardening agents was applied in human dentinal tubule occlusions. X-ray diffraction (XRD), scanning electronic microscopy (SEM), and Fourier transform infrared spectroscopy (FTIR) were used to investigate the re-crystallization behavior of human dentin and the dentinal tubule occlusion efficiency by mixing PG with various hardening agents. The major crystalline phases of PG mixed with phosphoric acid are CaHPO 4 ·2H 2 O and CaH 2 P 2 O 7 . PG mixed with 20 or 30 wt% phosphoric acid acted as a hardening agent and achieved a dentinal tubule penetration depth of 68–74 µm. PG mixed with suitable phosphoric acid agents has a short reaction time and a good operability that is feasible for occluding dentinal tubules. PG mixed with hardening agents has a greater potential for treating dentin hypersensitivity than PG without hardening agents. |
| Databáze: | OpenAIRE |
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