Method and apparatus photopolymerization of a reconstruction mass of a dental prosthesis

The invention concerns composite materials. It concerns an apparatus for polymerising a dental prosthesis comprising a support and a reconstruction mass attached to the support and formed, for the major part, of a composite material containing a polymeric binder wherein is dispersed a mineral filler. The apparatus comprises a first device for irradiating the composite material with polymerising light whereof the major part of the spectral energy ranges between 460 and 520 nm and which provides a polymerising index between 50 and 60 %, and a second device irradiating with polymerising, particularly thermal, light which increases the polymerisation rate by about 10 %. The material is then annealed. The invention is useful for making dental prostheses.