Intuitive intraoral scanning

An intraoral scanning system includes an intraoral scanner and a computing device. The computing device receives a plurality of intraoral scans from an intraoral scanner during an intraoral scan session; registering the plurality of intraoral scans together based on overlapping features of the plurality of intraoral scans; generating a first three-dimensional (3D) surface based on the plurality of intraoral scans; receiving one or more additional intraoral scans; determining that the one or more additional intraoral scans cannot meet one or more registration criteria for registering to at least one of the plurality of intraoral scans or the first 3D surface; and generating a second 3D surface based on the one or more additional intraoral scans. 一种口内扫描系统包括口内扫描仪和计算装置。计算装置在口内扫描会话期间接收来自口内扫描仪的多个口内扫描；基于所述多个口内扫描的重叠特征将所述多个口内扫描配准在一起；基于所述多个口内扫描生成第一三维(3D)表面；接收一个或多个额外口内扫描；确定所述一个或多个额外口内扫描无法满足用于配准到所述多个口内扫描或第一3D表面中的至少一个的一个或多个配准标准；以及基于所述一个或多个额外口内扫描生成第二3D表面。