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1. (WO2018081312) DENTAL IMPLANT SYSTEM WITH POSITIVE ABUTMENT SCREW LOCKING AND RETRIEVAL MECHANISMS

Pub. No.:    WO/2018/081312    International Application No.:    PCT/US2017/058363
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Thu Oct 26 01:59:59 CEST 2017
IPC: A61B 8/00
Applicants: LEE, Chi, Keung
NARULA, Gurpreet, Singh
Inventors: LEE, Chi, Keung
NARULA, Gurpreet, Singh
Title: DENTAL IMPLANT SYSTEM WITH POSITIVE ABUTMENT SCREW LOCKING AND RETRIEVAL MECHANISMS
Abstract:
A new dental implant system with positive abutment screw locking and retrieval mechanisms is provided. The abutment screw is positively locked by a keying pin to improve fatigue life. The abutment screw is also equipped with a special feature that greatly improves the retrievability of the broken screw from inside the implant. In addition, the keying pin is designed with a lock nut as a sub-assembly for ease of installation.