한국표면공학회지 (48권6호 283-291)
Effects of TiN Coating on the Fatigue Fracture of Dental Implant System with Various Cyclic Loads
Jung, Da-Un;Chung, Chae-Heon;Son, Mee-Kyoung;Choe, Han-Cheol;
Prosthetic Dentistry, SMG-SNU Borame Medical Center;Department of Prosthodontics, College of Dentistry, Chosun University;Department of Dental Materials, Research Center of Nano-Interface Activation for Biomaterials, & Research Center for Oral Disease Regulation of the Aged, College of Dentistry, Chosun University;
The purpose of this study was to investigate effects of TiN coating on the fatigue fracture of dental implant system with various cyclic loads. TiN coated abutment screw, the fixture, and abutment of internal hex type were prepared for fatigue test. The fatigue test was carried out according to ISO 14801:2003(E) using tensile and compression tester with repeated load from 30% to 80% of static fracture force. Morphology and fractured surface was observed by field emission scanning electron microscope(FE-SEM) and energy dispersive X-ray spectroscope(EDS). The fracture cycle drastically decreased as repeated load increased. Especially, in the case of TiN-coated abutment screw, fracture cycle increased compared to non-coated abutment screw. The fatigue crack was propagated fast as repeated load increased. The plastic deformation region decreased, whereas, cleavage fracture region increased as repeated load increased.
Dental implant, Abutment screw;Fatigue;Ion plating, Fracture, Crack;
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