Chair: Tetsuo Ohyama (Nihon University)

#9

The Relining Method of Removable Denture with Magnetic Attachments

A. Hiraoka¹, T. Masuda¹, T. Tanaka², K. Hayashi¹, K. Shiraishi¹, R. Kanbara¹, Y. Nakamura¹, F. Ito², M. Okada² and Y. Tanaka¹

¹Department of Removable Prosthodontics, School of Dentistry, Aichi-Gakuin University

²Dental Laboratory of University Hospital, Aichi-Gakuin University

Abstract

In a magnetic attachment denture, relining material is interposed between a keeper and magnetic assembly. It creates air gap, which results in a decrease in attachment force of a denture.

The purpose of the present study was to investigate the proper relining method of a magnetic attachment denture.

Three relining methods were performed: Direct relining methods were performed by removing and not removing a magnetic assembly. In the indirect method, a functional impression was taken using the denture base as a tray. The denture was relieved and relined in the dental laboratory.

Selection criteria of direct and indirect relining method were different between resin-bonded and cement-bonded magnetic assemblies in the denture base. The level of difficulty in relining was different depending on the fitting condition and a size of a denture base, and the shape of keeper coping and metal denture base.

Further investigation is needed on the selection criteria for relining method of a magnetic attachment denture.

Home