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WEAR BEHAVIOR OF ATTACHMENTS FOR IMPLANT RETAINED OVERDENTURE ACCORDING TO MATERIAL IN VITRO  

Lee Seok-Hyung (Samsung Medical Center, College of Medicine, Sungkyunkwan University)
Publication Information
The Journal of Korean Academy of Prosthodontics / v.41, no.6, 2003 , pp. 747-761 More about this Journal
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. Methods. Retention and abrasion of 14 commercial attachments were measured during 15,000 removes. Results. 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.
Keywords
Abrasion; Attachment material; Attachment design; Implant-retained overdenture; Retention loss; Abrasion rate; Wear; Matrix; Patrix;
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