The direct and indirect techniques of making magnetically retained overdentures.

Since their development in 1967, the rare earth magnets have become increasingly popular as an alternative method of providing overdenture retention to the conventional mechanical attachments. The techniques of making magnetically retained overdentures follow the basic principles of overdenture construction with some modifications. The use of the fluoride-releasing silver-glass ionomer cement as the build-up material for prefabricated keepers has broadened the patient selection to those who have high caries susceptibility and cannot afford the expense of making cast keepers.