Identifying existence of oral diseases

A mobile phone comprising:

• a light source operable to provide light with one of a plurality of wavelength bands, wherein the light with the corresponding wavelength band of the plurality of wavelength bands accentuates a corresponding feature indicative of a respective disease;
• a processor to operate said light source to generate a first light with a desired wavelength band to illuminate a target area in a mouth of a subject;
• and
• an image capture apparatus to form an image based on the reflected light from the target area.

A non-transitory machine readable medium storing one or more sequences of instructions for enabling a user to identify existence of oral diseases using a system, wherein execution of said one or more instructions by one or more processors contained in said system enables said system to perform the actions of:

• providing a light source operable to provide light in one of a plurality of wavelength bands, wherein the light with the corresponding wavelength band of the plurality of wavelength bands accentuates a corresponding feature indicative of a respective set of diseases;
• operating said light source to generate a first light with a desired wavelength band to illuminate a target area in a mouth of a subject;
• and
• examining an image formed by the reflected light from the target area for the existence of an oral disease corresponding to the desired wavelength band.