Cobalt Chromes are made of an alloy consisting of Chromium and cobalt. They are used as a strong rigid framework for partial dentures. Acrylic and denture teeth are then added to this.
Natural teeth provide extra retention for a partial denture and more importantly distribute the loading and stresses of a partial denture through these natural teeth. Cast partial dentures that rest on natural teeth are referred to as ‘tooth borne’ partial dentures. This prevents the denture compressing and damaging delicate tissue structures surrounding those teeth.
Cobalt chromium dental plates can be designed in various ways to suit individual patients, for example using a ‘skeleton’ or ‘equipoise’ design which minimises the surface the denture will come into contact with. They can also be utilised to reinforce full dentures and be used to strengthen implant retained acrylic dentures.
Tooth borne Cobalt Chrome removable partial dentures require careful design, planning and team approach. Sometimes minor preparation or modification of your natural teeth is required to facilitate the fabrication of a successful removable partial denture.
2 examples of different cobalt chrome designs.
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