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AssigneeDentsply Canada Ltd.
InventorsYves Berube-Lauziere, Naim Karazivan, Emmanuel Montini, Sophie Bernier, Marc Levesque, Yvan Mimeault, Michel Doucet
Estimating the term…
A dental tartar detection system (10), especially for detection of subgingival tartar (S), comprises a probe (12) adapted to be displaced along a tooth (T) an illumination system (14) for illuminating with an incident light a region on the tooth (T), a detection system (16) for collecting the light reflected thereat, and an analysis system (34) for providing a signal to an operator of the probe (12) when measurements on the reflected light in one or more predetermined range of wavelengths fall within any predetermined range of values that are characteristic of tartar (S). Typically, the detection of tartar (S) is achieved on the basis of the possible colours that tartar (S) can have such that the aforementioned one or more predetermined range of values cover wavelengths associated with colours of tartar (S).
A dental tartar detection system, comprising a probe adapted to be displaced along a tooth, illumination means for illuminating with an incident light a region on the tooth, detection means for collecting the light reflected thereat, and an analysing system for providing a signal to an operator of said probe when measurements on the reflected light in one or more predetermined ranges of wavelengths fall within any first predetermined range of values that are characteristic of tartar, or when said measurements do not fall within any second predetermined range of values that are characteristic of artefacts other than tartar.
A dental tartar detection system as defined in claim 44, wherein said monitor means is adapted to show a schematic or graphic representation of a broad range of wavelengths with boundaries representative of said any predetermined range of values being indicated on said representation, said monitor means also being adapted to show readings of said reflected light on said representation such that positions of said readings thereon relative to said boundaries are indicative of the presence or absence of tartar.
A method for removing dental tartar from teeth, comprising the steps of:
Dependencies are inferred from the claim text.