Results
Title

Effect of Double Screw on Abutment Screw Loosening in Single-Implant Prostheses.

Authors

Young-Gun Shin; So-Yun Kim; Ho-Kyu Lee; Chang-Mo Jeong; So-Hyoun Lee; Jung-Bo Huh; Shin, Young-Gun; Kim, So-Yun; Lee, Ho-Kyu; Jeong, Chang-Mo; Lee, So-Hyoun; Huh, Jung-Bo

Abstract

Purpose: This study was conducted to assess the effect of using a double screw on the prevention of abutment screw loosening.Materials and Methods: Internal connected abutment with a single screw (IS), internal connected abutment with a double screw (ID), external connected abutment with a single screw (ES), and external connected abutment with a double screw (ED) groups were prepared (n = 10 in each group). After 50,000 loading cycles, postload removal torque loss (RTL) percentage was measured.Results: Postload RTL of ID and ED were smaller than those of IS and ES (P = .000 and P = .039, respectively).Conclusion: This study showed that a double screw was more effective in prevention of screw loosening.

Subjects

DENTAL screws; DENTAL abutments; DENTAL implants; MECHANICAL loads; TORQUE; PREVENTION; DENTURE equipment; COMPARATIVE studies; MASTICATORY muscles; RESEARCH methodology; MEDICAL cooperation; DENTAL occlusion; COMPLICATIONS of prosthesis; RESEARCH; RESEARCH evaluation; EVALUATION research; PHYSIOLOGIC strain; EQUIPMENT & supplies

Publication

International Journal of Prosthodontics, 2016, Vol 29, Issue 5, p445

ISSN

0893-2174

Publication type

Academic Journal

DOI

10.11607/ijp.4791