The Physical Properties of a Machinable Resin Composite for Esthetic Restorations

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Author(s)

    • HAMAKUBO Youhei
    • Division of Fixed Prosthodontics and Oral Rehabilitation, Graduate School of Biomedical Sciences, Nagasaki University
    • SAWASE Takashi
    • Division of Fixed Prosthodontics and Oral Rehabilitation, Graduate School of Biomedical Sciences, Nagasaki University
    • YOSHIDA Keiichi
    • Division of Fixed Prosthodontics and Oral Rehabilitation, Graduate School of Biomedical Sciences, Nagasaki University
    • KAMADA Kohji
    • Division of Fixed Prosthodontics and Oral Rehabilitation, Graduate School of Biomedical Sciences, Nagasaki University
    • TAIRA Yohsuke
    • Division of Fixed Prosthodontics and Oral Rehabilitation, Graduate School of Biomedical Sciences, Nagasaki University
    • ATSUTA Mitsuru
    • Division of Fixed Prosthodontics and Oral Rehabilitation, Graduate School of Biomedical Sciences, Nagasaki University

Abstract

To investigate the pre-clinical relevancy of a machinable composite, its physical properties were evaluated and compared with a machinable ceramic and two indirect composites. A machinable resin composite (GN-I composite, CO), a machinable ceramic (GN-I ceramic, CE), and two resin composites (Artglass dentin, AG; Estenia dentin, ET) were used. Compressive strength, diametral tensile strength, flexural strength, elastic modulus, and fracture load of standardized, premolar crown-shaped specimens were determined. In terms of compressive strength, diametral tensile strength, and flexural strength, AG showed significantly lower values than the other three materials. In terms of fracture load, specimens with 1.5mm thick wall showed a higher value than those with 1.0mm thick wall, and the value decreased in the order of ET, CE, CO, and AG. Marginal tipping was also observed in ET and CE. Within the limits of the current study, CO showed physical properties favorable for constructing esthetic restorations.

Journal

  • Dental Materials Journal

    Dental Materials Journal 24(1), 24-29, 2005-03-01

    The Japanese Society for Dental Materials and Devices

References:  47

Cited by:  2

Codes

  • NII Article ID (NAID)
    110002983788
  • NII NACSIS-CAT ID (NCID)
    AA10443149
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    02874547
  • Data Source
    CJP  CJPref  NII-ELS  J-STAGE  NDL-Digital 
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