A telescopic prosthesis is a combined denture: one part is fixed while another remains removable. If the remaining dentition does not offer enough pillars, implants can help. With a partial denture, fewer abutments are sufficient. The pillars are the basis for the primary telescopes, i.e. for the inner crowns. The inner crowns are attached to the ground teeth or the implants. The removable part of the telescopic restoration – the outer crowns or secondary crowns – is then placed precisely on the inner crowns. When inserting the prosthesis, the outer crowns slide over the inner crowns like a glove over a hand. The resulting static friction ensures that the double crowns are held securely. Telescopic dentures feel like fixed teeth, are stable and meet high aesthetic standards. They are therefore a very good alternative to implant-supported dentures. In the case of a galvanic telescopic restoration, a fine gold framework is produced electrically, which fits precisely onto the inner crown - typically made from the materials cobalt-chrome (CoCr) or zirconia, but also possible in titanium or gold - and is firmly glued to the removable outer crown.

The production of the filmy gold coping takes place in the electroplating bath. For this purpose, the primary parts powdered with silver are introduced into a cyanide-free galvanic electrolysis gold bath. The current flowing through the electroplating bath causes a thin gold layer of around 200 µm, i.e. around 0.2 mm, to be deposited on the resin dies. The result is filigree electroformed frameworks made of 99% fine gold, which are free of pores and cavities, are extremely stable and fit exactly on the primary telescopes which are fixed in the oral cavity. The gold copings are bonded intraorally to the removable cobalt-chrome superstructure to guarantee a tension-free, precise fit.