Study on Torsional Strength of Screw-fixed Implants
AUTHORS
Sung-Min Kim,Department of Dental Technology, Gimcheon University, 214 DaehakroGimcheon City, Gyeongbuk 740-704, KOREA
Soo-chul Park,
ABSTRACT
The goal of this study was to evaluate the stability of implant structures under various pressures that may occur in the oral cavity. The study used test implants with three different fastening methods, and a total of 12 implants were tested. Implant fixtures and abutments manufactured using a CNC automatic lathe were tightened with a screw to 30N·cm using an electric torque meter (SMTT03-50, MARK-10, USA). The torsional strength was then tested by tightening until the implant structure fractured in the direction of the fastening. The results show that the implants in Group 1 had higher torsional strength than the implants in groups 1 and 2.
KEYWORDS
Screw-fixed, implant, fastening method, mechanical strength, torsional strength
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