Abstract: A dental lighting device and process for using the same comprises at least one lighting system configured to light a predetermined dental zone with, over a first spectral range which is less than a reference wavelength between 405 nm and 475 nm, a first irradiance value E1 and, over a second spectral range greater than this reference wavelength, a second irradiance value E2, which lighting system is configured to function according to at least one first lighting mode in which the ratio of the first irradiance value E1 to the second irradiance value E2 is less than 12.

Abstract: A dental lighting device and process for using the same comprises at least one lighting system configured to light a predetermined dental zone with, over a first spectral range which is less than a reference wavelength between 405 nm and 475 nm, a first irradiance value E1 and, over a second spectral range greater than this reference wavelength, a second irradiance value E2, which lighting system is configured to function according to at least one first lighting mode in which the ratio of the first irradiance value E1 to the second irradiance value E2 is less than 12.

Abstract: The invention relates to an image acquisition device enabling a dental radiological image to be obtained, the device comprising a matrix sensor (C) having integrated therein a plurality of image acquisition photodiodes (DA) sensitive to irradiation and at least one detection photodiode (DD) also sensitive to irradiation, the device also comprising a control module (M) for controlling the sensor (C) and suitable for periodically reading the detection photodiode (DD) and for causing the sensor (C) to change over (SBA) between at least two modes: a standby mode and an acquisition mode (ACQ).

Abstract: The medical, particularly dental imaging camera including an elongated housing (2) that can be held by a single hand of a user and provided, at its front end, with an imaging element, this housing (2) including a sensitive control element capable of freezing, on a display (5), an image selected by the user, this control element having a detection area (9) situated on the housing (2) that is delimited by a surface discontinuity such as a recess or a relief (11). The housing (2) encloses a sensor element associated with an electronic driving circuit and an electrostatic foam element whose one end is applied against the sensor element and whose opposite end is applied against an area of the inner face of the housing (2) located to the right of the detection area (9).

Abstract: The invention relates to an image acquisition device enabling a dental radiological image to be obtained, the device comprising a matrix sensor (C) having integrated therein a plurality of image acquisition photodiodes (DA) sensitive to irradiation and at least one detection photodiode (DD) also sensitive to irradiation, the device also comprising a control module (M) for controlling the sensor (C) and suitable for periodically reading the detection photodiode (DD) and for causing the sensor (C) to change over (SBA) between at least two modes: a standby mode and an acquisition mode (ACQ).

Abstract: The invention relates to a photopolymerization device (100) comprising a polymerization light source (111) and optical means (113) for guiding and/or directing the light energy produced by said source towards a zone photopolymerizable material. The photopolymerization device (100) further comprises means (117, 118) for measuring the intensity of the light reflected by the material for polymerizing, and in that said intensity measurement means are in communication with processor and control means (300) for controlling the light source and responding to the intensity measurement to adjust automatically at least the duration of the illumination by the light source (111) as a function of the measured intensity of said reflected light.

Abstract: Method for detection and location of a difference in density and/or structure and/or chemical composition of a biological tissue (7) which is subjected to continuous illumination in a first determined band of frequencies, causing the former to generate a phenomenon of fluorescence, autofluorescence or luminescence in a second band of frequencies. The method includes the following stages: the biological tissue thus illuminated is visually captured by color video elements provided with image sensors with a mosaic of pixels provided with additional color filters; for each image point thus obtained 1) information relating to the energy received by each pixel is collected in order to reconstitute an image of the biological tissue (7), b) amplification occurs for the signal corresponding to the energy received in the second frequency band in order to characterize the biological tissue (7) difference or to cause the image thus obtained to appear.

Abstract: This system for dental X-ray image acquisition comprises an X-ray generator and a control module for controlling an intra-oral sensor. The module includes means for sending a command to the generator in application of at least one predetermined criterion for preventing, stopping, or modifying the power of X-ray emission. The use of this system for optimizing the quantity of X-rays received by a patient.

Abstract: This system for dental X-ray image acquisition comprises an X-ray generator and a control module for controlling an intra-oral sensor. The module includes means for sending a command to the generator in application of at least one predetermined criterion for preventing, stopping, or modifying the power of X-ray emission. The use of this system for optimizing the quantity of X-rays received by a patient.

Abstract: The medical, particularly dental imaging camera including an elongated housing (2) that can be held by a single hand of a user and provided, at its front end, with an imaging element, this housing (2) including a sensitive control element capable of freezing, on a display (5), an image selected by the user, this control element having a detection area (9) situated on the housing (2) that is delimited by a surface discontinuity such as a recess or a relief (11). The housing (2) encloses a sensor element associated with an electronic driving circuit and an electrostatic foam element whose one end is applied against the sensor element and whose opposite end is applied against an area of the inner face of the housing (2) located to the right of the detection area (9).

Abstract: Method for detection and location of a difference in density and/or structure and/or chemical composition of a biological tissue (7) which is subjected to continuous illumination in a first determined band of frequencies, causing the former to generate a phenomenon of fluorescence, autofluorescence or luminescence in a second band of frequencies. The method includes the following stages: the biological tissue thus illuminated is visually captured by colour video elements provided with image sensors with a mosaic of pixels provided with additional colour filters; for each image point thus obtained 1) information relating to the energy received by each pixel is collected in order to reconstitute an image of the biological tissue (7), b) amplification occurs for the signal corresponding to the energy received in the second frequency band in order to characterize the biological tissue (7) difference or to cause the image thus obtained to appear.

Abstract: A method and a device for determining the sample of a colour coding ring closest to the colour of at least one element of a patient's set of teeth (3). The method includes steps which consist in: with imaging elements having a video camera (1), inputting and freezing on the screen (7) a colour image (7a) of the set-of-teeth element (3), filming the colour coding ring and displaying on the screen (7) the image of at least one sample, such that the image is side by side with the frozen image (7a) of the set-of-teeth element, visually comparing the image (7a) of the set-of-teeth element (3) frozen on the screen (7) and the sample image.

Abstract: The dental X-ray image acquisition device comprises an in-mouth sensor and a control unit suitable for controlling the in-mouth sensor and for triggering the acquisition of an image, for storing it, and for transferring said image to at least one computer via digital wireless communications means in compliance with the Bluetooth (registered trademark) standard.