An Experimental Method to Add New Prosthetic Teeth in the Removable Partial Denture Framework: TIG Cold Welding and Preformed Pins

Abstract

The need to modify removable partial dentures equipped with a metal framework in order to add other prosthetic teeth to replace natural teeth lost by the patient could lead to laboratory procedures so complex as to require the creation of new prostheses with a heavy economic burden. The creation of preformed metal pins to be welded using the economical TIG cold welding method could represent a valid alternative solution with the aim of modifying the prostheses using a reinforced resin capable of adequately resisting masticatory loads. This study evaluates and compares the mechanical robustness and the clinical reliability of these modified prostheses in cases of junctions of one or two contiguous prosthetic teeth. The 6-month follow-up demonstrated the total validity of the method via the absence of significant breakages or detachments in all of the patients analyzed; on the other hand, the prostheses modified using the traditional method and used as controls showed a high incidence of fractures.

Aesthetics in Removable Partial Dentures: Modification of the Proximal Plate and Retentive Lamellae in Kennedy Class II Scenarios

“…The aesthetic judgment of patients, often negative regarding the removable partial denture, is very high due to the sight of the clasps and retention. Furthermore, after the delivery of the prosthesis, there are subsequent adjustments or modifications to the prostheses in the following years, and this is also due to periodontal problems [22][23][24]. The progress of different techniques that use new CAD/CAM technologies has allowed operators to use design software and different materials to find increasingly comfortable and aesthetic solutions for the patient [25][26][27][28][29][30][31].…”