Abstract: An irradiation device for the radiation polymerization of synthetic materials in denture parts is described, having an electric lamp as source for radiation in the short-wave visible and close ultraviolet spectral region, also having a receptacle defining an irradiation chamber for a denture part which is to be irradiated, and a concave reflector associated with the lamp to reflect the radiation of the lamp into the irradiation chamber, and the said irradiation device contains a xenon flashlight as an electric lamp which has a curved bulb which extend in two directions of a surface. The bulb of the flashlight preferably has the shape of a helix with approximately 11/2 windings and tangentially spaced straight ends. The reflector is preferably box-shaped and has an open narrow side through which the connection ends of the flashlight bulb extend. The receptacle is preferably a dish with a quadrangular cross-section made from PTFE which surrounds the denture part with a clearance.

Abstract: In a radiation coagulator having an electric incandescent lamp, in particular a tungsten-halogen low-voltage lamp, as radiation source, and a tissue contact element of a crystalline dielectric material transmissive to the radiation, forming a contact surface to be pressed against living body tissue, the temperature conductivity (reciprocal of the temperature resistance), the heat capacity of the contact element, possibly in combination with a heat sink attached thereto, is so great that the heat generated in the tissue in contact with said surface is derived in substantial measure from the tissue contact element. This prevents an over-rapid and over-intense temperature rise at the surface of the tissue, leading to a considerable improvement in coagulability, especially for severe parenchymatous hemorrhages, and to lessened adhesion to the contact surface, and permitting a gentle coagulation, extending into depth if desired.