Abstract :
Screw loosening is one of the most common and serious problem associated with the implant restorations. In order to prevent and solve this problem, the clinician must understand the screw joint mechanics. This article presents an overview on different types of implant screws, screw tightening mechanics, recommended torque values, causes, sign and symptoms of screw loosening.
Keyword :
Dental implant, Preload, Torque, Screw Mechanics, Screw loosening.