Effect of Fastening Torque on Mechanical Mobility of IMZ Implant.

• Nakanishi Takeki

  Department of Fixed Prosthodontics and Occlusion, Osaka Dental University

• Tatsuta Mitsuhiro

  Department of Fixed Prosthodontics and Occlusion, Osaka Dental University

• Matsutani Yoshio

  Department of Fixed Prosthodontics and Occlusion, Osaka Dental University

• Matsushima Makoto

  Department of Fixed Prosthodontics and Occlusion, Osaka Dental University

• Ueda Naokatsu

  Department of Fixed Prosthodontics and Occlusion, Osaka Dental University

• Saratani Keiji

  Department of Fixed Prosthodontics and Occlusion, Osaka Dental University

• Kawazoe Takayoshi

  Department of Fixed Prosthodontics and Occlusion, Osaka Dental University

Bibliographic Information

Other Title

• スクリュー装着トルク値の違いがＩＭＺインプラントの動揺特性に及ぼす影響

Abstract

Purpose: This study was performed to examine whether different torques to fasten a superstructure with a screw affected mechanical mobility of IMZ implants with intramobile connector (IMC) or titanium element.<BR>Methods: Eight IMZ implants in five patients were used for this study. The same superstructure was fastened with occlusal screw to each implant with IMC or titanium element at 85, 145 and 180 Nmm torque values using a torque wrench. The horizontal mechanical mobility of each implant was measured three times by the automatic diagnostic system for tooth mobility.<BR>Results: The larger the torque values were, the smaller mechanical mobility of IMZ implants with IMC was. Friedman test indicated that mechanical mobility of IMZ implants with IMC significantly changed according to torque values (p<0.01). However, changes in mechanical mobility of the implants with titanium element were not statistically significant. At the fastening torque of 85 and 145 Nmm, a difference in mechanical mobility between implants with IMC and titanium element was statistically significant (p<0.05). However, fastening torque of 180Nmm did not show significant difference.<BR>Conclusions: A superstructure fastened with occlusal screw at torque values of 85 and 145Nmm had little influence on the stress absorption effect of IMC under horizontal load.

Journal

• Nihon Hotetsu Shika Gakkai Zasshi

  Nihon Hotetsu Shika Gakkai Zasshi 46 (2), 270-276, 2002

  Japan Prosthodontic Society

Keywords

• implant
• torque wrench
• fastening torque value
• screw
• mobility

Details

• CRID: 1390001204410659712
• NII Article ID: 10008157126
• NII Book ID: AN00197911
• DOI: 10.2186/jjps.46.270
• ISSN: 1883177X
• ISSN: 03895386
• Web Site: http://www.jstage.jst.go.jp/article/jjps1957/46/2/46_2_270/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2002221410
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed