Magnetic Attachment on the Proximal Surface of an Abutment Tooth

Abstract

Purpose: When magnetic attachments are used as stud attachments, we propose a method in which a magnetic attachment is placed onto the proximal surface of an abutment tooth without pulpectomy and abutment tooth preparation. This method can be used clinically for anterior teeth and premolars, and results in better esthetics than clasps.
Materials and methods: After a preliminary impression, the partial denture was designed. The location and size of the keeper were determined so that it would remain as hidden as possible and was within the undercut of the proximal surface of the abutment tooth adjacent to the denture. The keeper was adhered to the abutment tooth by a clear resin core. The denture was then prepared according to conventional methods. The magnetic assembly was placed after the patient wore the new denture for some time and the denture was adjusted to ensure stability.
Discussion: The abutment tooth was hardly damaged by this method. In the new method, the retentive force of the magnetic attachments is less than that by stud attachments. It is important for the clear resin core to fit the abutment tooth for adhering the keeper.
Conclusion: With the present method, a magnetic attachment keeper is directly adhered to the proximal surface of a natural abutment tooth. It markedly improves denture esthetics, and is an easier clinical technique to perform.