Apparatus for irradiating dental objects

Details Apparatus for irradiating dental objects Apparatus for irradiating dental objects

1981-07-15

1983-10-25

Smith, Alfred E.

Radiant energy

Radiant energy generation and sources

With radiation modifying member

2504551, 2504941, C08F 248, C08G 202, C08U 710

Patent

active

044121342

ABSTRACT:
An apparatus for treating, particularly bleaching, dental objects, such as dentures or parts thereof, made of synthetic material includes a support disposed in a drawer for receiving the objects and a lamp disposed above the drawer for emitting radiation in a spectral range (approximately 400 to 500 nm) suitable for the bleaching process. An upper reflector surrounding the lamp reflects from the total radiation emitted by the lamp mainly the portion lying within the said spectral range while it transmits the remaining radiation to the outside. An inner surface of the drawer forms a lower reflector. The support also consists of reflective material and has a central semi-spherical projection to ensure that the object positioned on the support so as to surround the projection is irradiated from all sides.
In another embodiment, the support for the dental object is made of glass, and two lamps each surrounded by a reflector are used to irradiate the object from above and below. In this case, the upper lamp and reflector are disposed to emit light in a substantially horizontal direction, and a mirror is disposed above the support to re-direct the irradiation towards the object. The mirror is mounted on a lid which is removable to allow easy access to the support.
The support may be disposed in a vacuum-tight chamber connected to a vacuum pump.

REFERENCES:
patent: 2245762 (1941-06-01), Stefani et al.
patent: 2822476 (1958-02-01), Osgood
patent: 4149086 (1979-04-01), Nath
patent: 4157253 (1979-06-01), Hernquist
patent: 4241255 (1980-12-01), Sugiyama et al.

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