Oral cavity scanner having tomography function, and method for inspecting chap of oral cavity structure using same

The invention discloses an oral cavity scanner with a tomography function and a method for checking chap of an oral cavity structure using the same. The oral cavity scanner includes: an OCT body (6) that transmits tomographic measurement light to an oral cavity structure (T) and detects reflected light to obtain an internal cross-sectional image of the oral cavity structure (T); an OCT scanning probe (8) that irradiates tomographic measurement light onto an oral cavity structure (T) and transmits reflected light to the OCT body (6); and a control/processing unit (48) that controls the OCT body (6) to travel in a predetermined direction along the surface of the oral cavity structure (T) while performing tomographic imaging on the oral cavity structure (T) to obtain two-dimensional cross-sectional images of two or more oral cavity structures (T), extracts an internal chapped region to calculate cross-sectional position information of the internal chapped region, and transmits the cross-sectional position inform