Retrieval of a Cold-welded Implant Cover Screw without Compromising Implant Threads: A Novel Slot-creation Technique

Aim:The aim of this case report is to present a novel technique for the retrieval of a cold-welded dental implant component, specifically a cover screw, without causing damage to the internal threads of the implant.Background: Cold welding of a dental implant component, particularly the cover screw, is a rare but significant mechanical complication that can complicate the prosthetic phase of implant therapy.Although this phenomenon may be beneficial when abutments are intentionally fixed, it can create challenging clinical situations when it occurs unintentionally or at an inappropriate stage of treatment.The reported incidence of cover screw-related complications ranges from 0.5 to 8%, and may be higher in implants with conical connections.Conventional retrieval methods and manufacturer-provided kits may be time-consuming, ineffective, or may risk damage to the implant's internal threads.Furthermore, the literature addressing the etiology and management of cold-welded components remains limited.Case report: This report describes the successful retrieval of a cold-welded cover screw using a slot creation technique.The technique enabled the removal of the component without compromising the implant's internal threads, thereby allowing safe continuation of prosthetic rehabilitation. Conclusion:A cold-welded dental implant component, such as a cover screw, represents a challenging mechanical complication that requires careful management.The technique described in this report is simple, cost-effective, and universally applicable across various dental implant systems.It provides a practical solution when conventional methods fail and highlights the importance of adequate knowledge and precautionary measures to minimize the incidence of cold welding.Clinical significance: This method offers clinicians an effective, time-efficient, and safe approach for managing cold-welded implant components, i.e., cover screw, thereby preventing potential delays or complications in implant therapy.