A Study on the Screw Loosening of Implants Having Different Connection Methods in Repeated Measurements
AUTHORS
Soo-chul Park,Department of Dental Technology, Gimcheon University, 214 Daehakro Gimcheon City, Gyeongbuk 740-704, KOREA
ABSTRACT
This study carried out screw loosening tests for the purpose of evaluating differences of screw loosening torque through 5-times repeated measurement on screw loosening tests about fixture and abutment after fixing 4-kind implant (N=4) fixture and abutment having different tightening methods by using an electric torque meter (SMTT03-50, MARK-10, UA) and fixing them with fixed screws of 30N·cm. From all of internal octagon connection implant and external hexagon connection implant, internal hexagon connection implant having morse taper of 11° and 1.5°, screw loosening values were decreased as much as the measuring times were increased.
KEYWORDS
Dental Implant, repeated measures, screw, Screw Loosening
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