Journal of Technologic Dentistry (대한치과기공학회지)

Korean Academy of Dental Technology (대한치과기공학회)
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A Study on the Screw Loosening Torque According to the Type of Tightening the Implant Fixture and Abutment

임플란트 고정체와 지대주의 체결방식에 따른 스크류 풀림토크에 관한연구

  • Park, Soo-Chul (Department of Dental Technology, Gimcheon University) ;
  • Kim, Hong-Sik (Department of Dental Technology, Gimcheon University) ;
  • Ham, Sung-Won (Department of Chemical Engineering, Kyungil University)
  • 박수철 (김천대학교 치기공학과) ;
  • 김홍식 (김천대학교 치기공학과) ;
  • 함성원 (경일대학교 화학공학과)
  • Received : 2013.07.27
  • Accepted : 2013.09.13
  • Published : 2013.09.30
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Abstract

Purpose: In this study, the loosening torque test was conducted with three implant products that are produced, approved and sold in Korea, which are manufactured in different fixture and abutment tightening methods (internal submerged type, internal morse taper type, and external type) to examine the loosening torque of the screw according to the method of tightening the implant fixture and abutment. Methods: In the loosening torque test, the three types of fixtures and abutments with different tightening methods were tightened by rotating them clockwise with a $30N{\cdot}cm$ force using a driver equipped with an electric torque meter. The results of the test are as follows. Results: The loosening torque values of the internal submerged type, internal morse taper type and external type implants were $24.10{\pm}0.742N{\cdot}cm$, $29.10{\pm}1.710N{\cdot}cm$, and $26.60{\times}1.636N{\cdot}cm$, respectively. Conclusion: The screw loosening torque values of the three fixture and abutment tightening methods were analyzed via Kruskal Wallis test layout, and they were significantly different (p<0.05).

Keywords

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