An oral care apparatus includes: a care member an orientation detection unit an area estimation unit a light source that emits light having a predetermined wavelength to which plaque reacts a photoelectric conversion unit that receives light and converts the received light into an electric signal an image capture unit that causes the light source to irradiate the care area with light, and that obtains image data, based on the electric signal of light reflected from the care area that is converted by the photoelectric conversion unit a plaque detection unit for detecting an amount of plaque in the care area, based on the image data obtained by the image capture unit and a storage unit for storing, in a memory, the care area estimated by the area estimation unit and the amount of plaque in the care area detected by the plaque detection unit in association with each other.
