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Abutment screw tightening; Dental implant; Implant-abutment connection; Preload; Screw loosening resistance
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Full-Text Articles in Medicine and Health Sciences
Screw Retightening Increases The Implantabutment Connection Screw Loosening Resistance Of Two Implant Systems, Sudarat Nubdee, Ticha Kanchanapoomi, Wacharasak Tumrasvin, Trakol Mekayarajjananonth
Screw Retightening Increases The Implantabutment Connection Screw Loosening Resistance Of Two Implant Systems, Sudarat Nubdee, Ticha Kanchanapoomi, Wacharasak Tumrasvin, Trakol Mekayarajjananonth
Chulalongkorn University Dental Journal
Background/Objective To evaluate the effect of three screw-tightening methods on the screw loosening resistance of two dental implant systems. Materials and methods Fifteen Simple Line II dental implants and 15 CU dental implant abutments were screw tightened to their implant fixtures to the manufacturerûs recommended torque using three tightening methods (method 1: tightening the screw one time, method 2: tightening the screw and retightening the screw after 10 min, method 3: tightening the screw, loosening the screw, retightening the screw, and then retightening the screw after 10 min). After a 106-cycle fatigue test, the reverse torque values were measured. The …