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http://dx.doi.org/10.17135/jdhs.2016.16.1.93

A Study on the Retentive Force of Stud Attachments for Implant Overdenture  

Song, Eun-Ju (Goodwill Junior Dental Clinic, Goodwill Dental Hospital)
Bae, Eun-Bin (Department of Prosthodontics, School of Dentistry, Pusan National University)
Choi, Jae-Won (Department of Prosthodontics, School of Dentistry, Pusan National University)
Bae, Ji-Hyeon (Department of Prosthodontics, School of Dentistry, Pusan National University)
Kim, Ji-Young (Department of Dental Hygiene, Kyungnam College of Information & Technology)
Lee, So-Hyoun (Department of Prosthodontics, School of Dentistry, Pusan National University)
Publication Information
Journal of dental hygiene science / v.16, no.1, 2016 , pp. 93-100 More about this Journal
Abstract
The purpose of this study was to compare the changes of retentive force in different stud attachment systems for implant retained overdenture. Two commercially available attachments with different retentive forces were investigated: Kerator (pink, blue, red) and O-ring (orange, red). Two implant fixtures were vertically embedded in base mountings. Five pairs of each attachment were evaluated. A universal testing machine was used to evaluate the retentive force of two attachments during wear simulation. Surface characteristics of each attachment system were evaluated with scanning electron microscopy. Five pairs of each attachment were evaluated. Kerator pink showed the highest initial retention. After 2,500 cycles of wear-simulation, Kerator pink noted the largest decrease in retention. According to results of surface analysis, Worn surfaces were obtained in matrices and patrices. Heavy wears were observed in matrices. After 2 year-wear simulation, most attachments exhibited retention loss. Attachments using different kind of material exhibited dissimilar surface alterations.
Keywords
Attachment; Overdenture; Retention; Wear;
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Times Cited By KSCI : 5  (Citation Analysis)
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