Disclosed is an oral cavity scanner device. According to the present invention, provided are an oral scanner device which can reduce the scanning time of teeth inside the oral cavity and can scan teeth inside the subgingival space and an oral cavity scanning method using the same. The oral cavity scanning device includes: a scanner (100) which includes a lighting unit (130) sequentially outputting lights to create different shadows on teeth (310) and a camera (120) photographing the teeth (310) where the different shadows are created to output as image information and an image management unit (200) analyzing the image information of the teeth (310) received from the scanner (100) by the length and direction of the shadows of the teeth, and converting the same to three-dimensional image information of the teeth (310).구강 스캐너 장치가 개시된다. 본 발명은 구강 내 치아의 스캔 시간을 단축하고, 치은연하의 치아 스캔이 가능한 구강 스캐너 장치 및 이를 이용한 구강 스캐닝 방법을 제공한다.
