Shock Absorption of Mouthguard Materials-Influence of Temperature Conditions and Shore Hardness on Shock Absorption-

DOI Web Site PubMed 8 Citations 17 References Open Access
  • Tomita Takashi
    Department of Removable Partial Denture Prosthodontics, Nihon University School of Dentistry
  • Tsukimura Naoki
    Department of Removable Partial Denture Prosthodontics, Nihon University School of Dentistry Division of Oral and Craniomaxillofacial Research Dental Research Center, Nihon University School of Dentistry
  • Ohno Shigeru
    Department of Removable Partial Denture Prosthodontics, Nihon University School of Dentistry
  • Umekawa Yoshitada
    Department of Removable Partial Denture Prosthodontics, Nihon University School of Dentistry
  • Sawano Muneyuki
    Department of Removable Partial Denture Prosthodontics, Nihon University School of Dentistry
  • Fujimoto Toshiki
    Department of Removable Partial Denture Prosthodontics, Nihon University School of Dentistry
  • Takamura Masaaki
    Department of Removable Partial Denture Prosthodontics, Nihon University School of Dentistry
  • Majima Aiko
    Department of Removable Partial Denture Prosthodontics, Nihon University School of Dentistry
  • Katakura Yuusuke
    Department of Removable Partial Denture Prosthodontics, Nihon University School of Dentistry
  • Kurata Akemi
    Department of Removable Partial Denture Prosthodontics, Nihon University School of Dentistry
  • Ohyama Tetsuo
    Department of Removable Partial Denture Prosthodontics, Nihon University School of Dentistry Division of Oral and Craniomaxillofacial Research Dental Research Center, Nihon University School of Dentistry
  • Ishigami Tomohiko
    Department of Removable Partial Denture Prosthodontics, Nihon University School of Dentistry Division of Oral and Craniomaxillofacial Research Dental Research Center, Nihon University School of Dentistry

Bibliographic Information

Other Title
  • マウスガード材料の衝撃吸収に関する研究―温度条件，ショア硬度が衝撃吸収に及ぼす影響―
  • Influence of Temperature Conditions and Shore Hardne-ss on Shock Absorption
  • 温度条件, ショア硬度が衝撃吸収に及ぼす影響

Search this article

Description

Purpose: To consider changes in the physical properties of mouthguard materials with the change of temperature, shock-absorbing examination and Shore hardness measurement of existing MG materials and other elastic materials were carried out.<BR>Methods: Both examinations were done under two temperature conditions: at room temperature (25deg;C) and simulated intraoral temperature (37deg;C). In addition, a comparative study of the relation between Shore hardness and shock absorption of the materials was made. A self-made drop impact machine was used for the shock-absorbing examination. The thickness of a sample was assumed to be 3mm. The loading was applied by dropping 3 kinds of steel ball, ∅ 10mm (4.0g), ∅ 15mm (13.7g), and ∅ 20mm (32.6g) from a height of 60cm. The shock absorption of all materials was compared by the maximum impact force. Shore hardness was measured based on the JIS standard.<BR>Results: The shock absorption of each material showed a different tendency depending on the loading condition. Furthermore, the shock absorption of the same material showed different results depending on the temperature condition. Shore hardness measurements tended to show low values with the condition of 37deg;C for all materials.<BR>Conclusion: From the relation between shock absorption and Shore hardness, it was confirmed that there is a correlation between hardness and the maximum impact force in the materials that showed shock absorption by elastic deformation. Some materials showed high shock absorption compared with existing MG materials.

Journal

Citations (8)*help

See more

References(17)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top