象牙質接着に用いるMMAレジンにおける重合開始剤に関する研究  [in Japanese] Studies on Polymerization Initiators in MMA Resin for Dentin Bonding  [in Japanese]

    • 法亢 順光 HOUGA Yorimitsu
    • 東京医科歯科大学生体材料工学研究分子制御分野 Department of Applied Functional Molecules, Institutes of Biomaterials and Bioengineering, Tokyo Medical and Dental University

Abstract

象牙質接着における重合開始剤の役割を明らかにするため, TBB, バルビツル酸系, BPO / アミン開始剤をとりあげ, 象牙質界面におけるPMMA / MMAレジンの重合挙動をFT-ラマン分光法により検討した.さらに, それら開始剤の併用がレジンの重合および象牙質の接着に及ぼす影響を検討した.TBBおよびバルビツル酸系では, 接着に効果的な前処理剤で処理すると, 象牙質界面での重合が促進されたが, 接着性に乏しいBPO / アミンではそのような現象は認められなかった.象牙質界面で重合促進作用を示す開始剤では, 接着強さが大きくなる傾向が示唆された.TBBとバルビツル酸系あるいはBPO / アミンの併用は, 重合面ではプラスに作用したが, 接着強さはTBBとの組み合わせに依存していた.BPO / アミンとの併用では接着強さは変わらなかったが, バルビツル酸系との併用では低下した.BPO / アミンをTBBと併用することにより, 現在臨床的に使われているMMA-TBBレジンの性能をさらに高められる可能性が示唆された.

To clarify the role of polymerization initiator in dentin bonding, tributylborane(TBB), barbituric acid system, and BPO / amine initiators were studied for polymerization of PMMA / MMA resin at the dentin interface by FT-Raman spectroscopy. Moreover, the influences of combined use of the initiators on polymerization of the resin and dentin bonding were also examined. Polymerization at the dentin interface was promoted by TBB and barbituric acid system when dentin was treated with the conditioners effective for bonding. Initiators capable of promoting polymerization at the dentin interface tended to produce high bond strength. The combined use of TBB and barbituric acid system or BPO / amine produced desirable effects on polymerization of the resin but different effects on the bond strength depending on the combination with TBB. The combined use of BPO / amine with TBB suggested that it can improve the performance of MMA-TBB resin currently in clinical use.

Journal

Journal of the Japanese Society for Dental Materials and Devices   [List of Volumes]

Journal of the Japanese Society for Dental Materials and Devices 19(3), 259-268, 2000-05-25  [Table of Contents]

The Japanese Society for Dental Materials and Devices (JSDMD)

References:  13

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Cited by:  1

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Codes

  • NII Article ID (NAID) :
    110002990301
  • NII NACSIS-CAT ID (NCID) :
    AN00127279
  • Text Lang :
    JPN
  • Article Type :
    Journal Article
  • ISSN :
    02865858
  • Databases :
    CJP  CJPref  NII-ELS 

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