A - Human Necessities – 61 – C
Patent
A - Human Necessities
61
C
73/178, 83/30
A61C 19/00 (2006.01) A61B 6/14 (2006.01)
Patent
CA 1179870
ABSTRACT OF THE DISCLOSURE A device for the ocular determination of any discrepancy in the luminescence capacity of the surface of a tooth (4) for the purpose of assessing the extent of any part (4a) of the surface of the tooth exhibiting caries and/or a coating and/or a defect. The surface of the tooth (4) is illuminated by means of a light (3) with a predetermined wavelength and/or wave range, for example a laser light. The luminescence capacity of the surface of the tooth at another wavelength and/or within another wave range shall be assessed, when any caried or similar part (4a) will show a discrepancy in relation to the normal luminescence capacity of the tooth (4) and will be perceived as a darker area. If the surface of the tooth (4) is illuminated by means of a light which is visible to the eye, then the observer (5) shall use an absorption filter (6) capable of absorbing light at the emitted wavelength or wave range reflected from the surface of the tooth. The invention may also be used in the course of treatment in order to determine when the caried part has been removed from the enamel surface and/or dentine surface produced by the treatment. It is recommended that Figure 1 be attached to the Abstract on publication.
400551
Inspektor Research Systems B.v.
Smart & Biggar
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