Influence of implant angulation and cyclic dislodging on the retentive force of two different overdenture attachments - an in vitro study

Objective This in vitro study evaluated the influence of implant angulations on the retentive behavior of two overdenture attachments during cyclic dislodging. Methods Models simulating a two‐implant overdenture situation were fabricated. They were divided into five groups based on their simulated i...

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Bibliographic Details
Published in:Clinical oral implants research 2016-05, Vol.27 (5), p.604-611
Main Authors: Srinivasan, Murali, Schimmel, Martin, Badoud, Isabelle, Ammann, Patrick, Herrmann, François R., Müller, Frauke
Format: Article
Language:English
Subjects:
artificial saliva
Dental Implants
Dental Prosthesis, Implant-Supported
Dental Stress Analysis
Dentistry
Denture Retention - instrumentation
Denture, Overlay
dislodging cycles
Humans
implant overdentures
in vitro testing
LOCATOR
overdentures
retentive force
SFI-Anchor
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Summary:Objective This in vitro study evaluated the influence of implant angulations on the retentive behavior of two overdenture attachments during cyclic dislodging. Methods Models simulating a two‐implant overdenture situation were fabricated. They were divided into five groups based on their simulated implant angulations (Groups: 1 = 0°; 2 = 20°; 3 = 30°; 4 = 40°; and 5 = 60°; n = 90). Each group was further divided into two subgroups based on its attachment system (control attachment: LOCATOR®; test attachment: SFI‐Anchor®) except for group 5 which had no LOCATOR® group. All models underwent 10,000 insertion–removal cycles in a wet environment. Mean retentive forces were recorded. ANOVA and linear regression models were used for statistical analyses, and the level of significance was at P 
ISSN:0905-7161
1600-0501
DOI:10.1111/clr.12643