J Korean Acad Prosthodont.  2003 Dec;41(6):747-761.

Wear behavior of attachments for implant retained overdenture according to material in vitro

• Lee SH

Abstract

STATEMENT OF PROBLEM: The proper materials of attachments for implant retained overdenture are unknown, such as the correlation between retention and abrasion, as well as the types of materials that are suitable for patrix and for matrix individually. PURPOSE OF THIS STUDY: The aim of this study was to select a proper clinical attachment system for a successful treatment as well as patient satisfaction. METHOD: Retention and abrasion of 14 commercial attachments were measured during 15,000 removes. RESULT: A retentive part (matrix) which requires elasticity has to be made of gold while the patrix part which does not require elasticity has to be made of titanium. This gold matrix / titanium patrix combination showed the most retentive force and the least retention loss.

Keyword

Abrasion; Attachment material; Attachment design; Implant-retained overdenture; Retention loss; Abrasion rate; Wear; Matrix; Patrix

MeSH Terms

Denture, Overlay*
Elasticity
Patient Satisfaction
Titanium
Titanium