歯科材料のX線不透過性 Radiopacity of Dental Materials

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著者

    • 松村 英雄 MATSUMURA Hideo
    • 長崎大学歯学部歯科補綴学第一講座 Department of Fixed Prosthodontics,Nagasaki University School of Dentistry
    • 熱田 充 ATSUTA Mitsuru
    • 長崎大学歯学部歯科補綴学第一講座 Department of Fixed Prosthodontics,Nagasaki University School of Dentistry

抄録

Radiopacity of prosthetic dental materials especially used in the coronal area was determined, and the values were compared with those of enamel and dentin. Radiographs of the 2 mm thick specimens were taken together with tooth slices on aluminum step wedges. Radiographic density of the specimens were measured by means of a densitometer and expressed in terms of the equivalent thickness of aluminum. The results showed that the materials containing metal oxide and metallic compound exhibited high radiopacity values, whereas polymer-based materials with low filler content showed very low radiopacity values. A radiopacity value greater than enamel may be desirable for detection of materials or for their distinction from the tooth structure on the dental radiograph.

収録刊行物

  • 日本補綴歯科學會雜誌 = The journal of the Japan Prosthodontic Society

    日本補綴歯科學會雜誌 = The journal of the Japan Prosthodontic Society 43(3), 499-505, 1999-06-10

    Japan Prosthodontic Society

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各種コード

  • NII論文ID(NAID)
    10008173513
  • NII書誌ID(NCID)
    AN00197911
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03895386
  • データ提供元
    CJP書誌  J-STAGE 
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