The invention discloses a method for guiding and segmenting teeth by utilizing morphological data. The method comprises the following steps: S1, acquiring three-dimensional volume data of a patient and three-dimensional surface data of the teeth; S2, carrying out
volume rendering; S3, extracting a gingival edge line; S4, performing model registration on the data; S5, carrying out
voxel segmentation of tooth attributes; S6, carrying out
data verification, and deleting the part which does not belong to the tooth attribute; S7, performing three-dimensional reconstruction; and S8, segmenting the data of the teeth according to the tooth positions. According to the invention,
automatic segmentation can be carried out on teeth in an image; operation is simple, and each tooth can be segmented; andautomatic recognition of the teeth, periodontal tissues and other tissues is achieved, the clinical requirements of
oral medicine are better met, development of the
oral medicine is promoted, automatic diagnosis of oral diseases is achieved through the
digitization technology, and a technical foundation is laid for development of automatic orthodontic tooth arrangement, automatic diagnosis of periodontal
recovery and the like special for
orthodontics.