#11 Attractive Force Analysis of Magnetic Attachment using Three Dimensional Finite Element Method　 　-Influence of the Keeper Thickness on Attractive Force-
Kumano H., Masuda T., Nakamura Y., Miyata T., Iwai T., Kogiso T., Ohno Y., Tanaka Y.
Removable Prosthodontics, School of Dentistry, Aichi-Gakuin University
The clinical efficacies of a magnetic attachment have been widely demonstrated. This includes a small lateral load on an abutment tooth due to its non-mechanical retentive force and aesthetic appearance. 　A keeper and a magnetic assembly are designed to exert a maximum attractive force within the small size. In practice, the problem of lack of space for the attachment often occurs. It is not recommended to process commercial magnetic attachment. However, partial processing of a keeper is often inevitable to enhance clinical results. In such cases, it is important to understand the influence of processing on the attachment function. 　The present study focused on the thickness of a keeper, and investigated the influence of the keeper thickness on the attractive force using three-dimensional finite element method.