Oral cavity scanner having tomography function and method for tomography of oral cavity using same

The invention discloses an oral cavity scanner with a tomography function and an oral cavity tomography method using the same. An oral cavity scanner having a tomography function includes: a shape measurement light projector that irradiates shape measurement light for obtaining a shape image of an oral cavity structure; a shape measurement camera that detects reflected light formed by reflecting the shape measurement light on the surface of the oral cavity structure to obtain a surface shape image of the oral cavity structure; an OCT body that transmits tomographic measurement light to the oral cavity structure and detects reflected light reflected by the interior of the oral cavity structure to obtain an internal cross-sectional image of the oral cavity structure; an OCT scanning probe which irradiates the tomographic measurement light emitted by the OCT body to a desired position of the oral cavity structure and transmits the reflected light reflected by the oral cavity structure to the OCT body; and a beam