Electroforming in Dentistry – New Aspects and Trends

Gold 2003
Abstract Topic area: Dental materials and applications

Electroforming is an possibility to produce metallic frameworks for metal ceramic constructions and individual attachments. It is an alternative technique to the well known casting. The technique is easy to handle and fascinating for technicians and dentists.
The frame works consist on pure gold with a purity of 99,92 percent. Advantages are very high corrosion resistance in accordance to other dental material materials, low gaps to the tooth or other construction peaces and good clinical result. The electroforming process is computer controlled and the thickness of the caps ranged between 0,2 to 0,4 millimetres.
After impression of the clinical situations of the drilled teeth the technician continued with master models, duplicated model and the electroformed cap for crown, inlays, base for removal dentures or individual attachments, e.g. double crows or bare retainers.
The main condition for an gold deposit of a surface is the electrical conductivity. For Crowns and Inlays are used silver containing varnishes and in the case of individual retainers metallic constructions. An advantage for the technician is a very good quality controlling by colour and structure of the electroformed surface.
The combination of the electroformed single pieces carried out with luting with organic or ceramic materials, brazing, laser welding or casting on the caps. So we can produce complex prosthetic constructions.
Veneering by ceramic or modern composites are possible.
Electroforming has developed to an excellent technique for all kinds of dental reconstructions with a very good price, high stability and longevity. The main application today is the use in combination prostheses on natural teeth and implants with conical and bare retainers. Electroforming was a revolution for double crown retained prostheses.
The single pieces for all attachments will formed and lute in a tertiary construction by composites in the mouth. The technique is easy for the technician and the dentist.
The advantage is stress reduction between construction elements and the possibility of passive fit. This will demonstrated in some clinical cases. Every attachment can removed and repaired. So gives the prosthesis a good success for the patient and the dentist. New trends are the use of ceramic pieces for male crowns. Industrial ceramic materials, e.g. zirconium dioxide, determine the development in last years.
Keywords: electroforming, Pure Gold, Ceramic veneering, Laser welding, Dental technicians, Dental prosthesis, Intraoral luting
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