Mechanical Properties of Magnetic Attachments for Removable Prostheses on Teeth and Implants

Abstract

There were differences between magnetic attachments for both the initial retentive capabilities and the characteristic curves. Recently introduced products provided relatively high initial retentive forces despite their small size. The measured retentive forces and the manufacturer's information differed in the majority of magnetic systems evaluated.

Magnetic Flux Density of Different Types of New Generation Magnetic Attachment Systems

“…By using Nd:YAG laser under argon atmosphere, a shield ring made of stainless steel (SUS 447J1 or SUS 316L) or titanium is welded in the boundary between the cup and disc yokes in the laser‐welding technique . Consistent with the results of Boeckler et al and Akin et al, corrosion is not completely stopped despite laser welding. The laser‐welding zone broke down, and corrosion reached the magnet.…”

“…Several studies, including retention properties, cytotoxicity tests, and corrosion tests, have been conducted ,. Nevertheless, no solid data about magnetic flux density exists regarding a magnetic attachment.…”

“…These can be divided into open and closed magnetic systems. [4][5][6][7][8] Whether the open-field system causes any deleterious effect by the magnetic flux that scatters to the tissues has not been determined. 8 However, a closed-field system not only eliminates much of the external magnetic flux field but also makes the attachment more efficient.…”

“…3,11 Several studies, including retention properties, cytotoxicity tests, and corrosion tests, have been conducted. 2,7,8,[13][14][15] Nevertheless, no solid data about magnetic flux density exists regarding a magnetic attachment. Therefore, the purpose of this study was to analyze the static magnetic flux density of different types of new generation magnetic attachments in the single position and the attractive position and to determine the effect of two corrosive environments on magnetic flux density.…”

Influence of sterilization on the retention properties of magnetic attachments for dental implants

“…For closed systems the magnetic field lies within the components that are in contact with each other (Chopra et al 2007). Differences are also evident between mono and duo systems (Riley et al 2001;Chopra et al 2007;Boeckler et al 2008). In mono systems, the magnetic pair incorporates a soft alloy with no static magnetic field, but that can easily be magnetized.…”