Scanner for dental treatment, and data transmission method of same

An intraoral scanner for dental treatment, the intraoral scanner comprising:

• a light emission unit configured to output light to be projected onto an object;
• a camera module comprising at least one camera configured to obtain at least one intraoral image based an image formed by the light reflected from the object;
• a communication unit comprising a first communication module configured to perform wireless communication in a first frequency band, and a second communication module configured to perform wireless communication in a second frequency band with an external electronic device which processes intraoral image data corresponding to the at least one intraoral image;
• and
• a processor configured to execute at least one instruction to:
• perform control such that control signals related to at least one of an operation of obtaining the at least one intraoral image and an operation of transmitting the at least one intraoral image are transmitted to and received from the external electronic device, through the first communication module performing the wireless communication in the first frequency band, and
• perform control such that the at least one intraoral image is transmitted to the external electronic device through the second communication module performing the wireless communication in the second frequency band.