Fundamental Properties of Light Curing Trial Base Plate Resins

DOI 4 Citations 20 References
  • SUZUKI Tetsuya
    Oral Rehabilitation, Department of Masticatory Function Rehabilitation, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University
  • ODA Nobusuke
    Oral Rehabilitation, Department of Masticatory Function Rehabilitation, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University
  • UCHIDA Mitsuharu
    Oral Rehabilitation, Department of Masticatory Function Rehabilitation, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University
  • HAYAKAWA Iwao
    Oral Rehabilitation, Department of Masticatory Function Rehabilitation, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University
  • TAKAHASHI Hidekazu
    Advanced Biomaterials, Department of Restorative Sciences, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University

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Other Title
  • 光重合型基礎床用レジンの基礎的物性

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Abstract

This study evaluated the usefulness of light-curing trial base resins (LCT) for maxillary complete dentures compared with conventional self-curing trial base resins (SCT). Three commercial LCTs and two commercial SCTs were measured in terms of flexural properties, Knoop hardness number (KHN), dimensional change after curing, filler content and fit to the model. Flexural properties and KHNs of LCTs varied among products, and some of those were influenced by the thickness of the resin plates. The flexural properties, especially flexural moduli, and KHNs of LCTs were significantly greater than those of SCTs. However, the deformations at central portions of the model of LCTs were significanatly bigger than those of SCTs. These results suggest that LCT is useful for a trial base plate resin of maxillary complete denture because of its adequate mechanical properties and easy manipulation despite the slight greater deformation.

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