A Study on Screw Loosening in Dental Implant Abutment

Abstract

Dental implants are integral in replacing missing teeth, providing durability and natural aesthetics through osseointegration-a process where the implant fuses with the jawbone to support a prosthesis. However, screw loosening presents significant challenges, potentially leading to implant failure, bone loss, and peri-implantitis. Contributing factors include micro-leakage, settling effects, loss of preload, abutment angulation, and inadequate torque application. Addressing these issues through proper torque management, anti-rotation features, and retightening protocols is crucial for implant longevity and success. This study outlines key causes and solutions for screw loosening in dental implants.