Synthesis of Fluoride Releasing Phosphazene Monomers and their Application to Dental Resin
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- ANZAI Misaki
- Department of Dental Materials, Nihon University School of Dentistry
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- KOBAYASHI Hiroki
- Department of Dental Materials, Nihon University School of Dentistry
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- YOSHIHASHI Kazue
- Department of Dental Materials, Nihon University School of Dentistry
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- NAKAJIMA Yoshio
- Department of Dental Materials, Nihon University School of Dentistry
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- NISHIYAMA Minoru
- Department of Dental Materials, Nihon University School of Dentistry
Bibliographic Information
- Other Title
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- フッ素徐放性ホスファゼンモノマーの合成と歯科用レジンへの応用
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Abstract
To develop fluoride-releasing dental materials, three kinds of fluoride-releasing phosphazene monomers were synthesized and analyzed.Using hexafluorocyclotriphosphazene(P_3N_3F_6), three kinds of P_3N_3(F)_<1-3>(EMA)_<5-3> were synthesized by replacing 3〜5 of fluoride with HEMA.On IR, NMR and elemental analysis, all synthesized monomers were within expectation.Their refractive index were 1.4662〜1.4718 and viscosity were 1.3〜1.8Pa・s.Then, 30wt% of synthesized monomers were mixed with MMA and light-cured.Polymers were produced by mixing with PMMA.Amounts of fluoride released and the transverse strength were measured after a period of immersion in water at 37℃.Amounts of fluoride released by the three kinds of polymers were decreased with changes in the immersion period.After 1 day and 360 days immersion in water, amounts of floride released were 2.0〜3.3μg/ml and 0.2〜0.8μg/ml respectively.Transverse strength after 360 days immersion in water was 74.0〜76.0MPa.Amounts of fluoride released and transverse strength showed a tendency to decrease with increases in the immersion period when commercial sealant was used as a control.
Journal
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- The Journal of the Japanese Society for Dental Materials and Devices
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The Journal of the Japanese Society for Dental Materials and Devices 16 (2), 90-100, 1997-03-25
The Japanese Society for Dental Materials and Devices
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Keywords
Details 詳細情報について
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- CRID
- 1390001288049818112
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- NII Article ID
- 110002992014
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- NII Book ID
- AN00127279
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- ISSN
- 21884188
- 02865858
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- Text Lang
- ja
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed