In medical image analysis, it is very important that organs or tissues can be clearly displayed, which is helpful for diagnosis and treatment. The popularity of cone beam computed tomography (CBCT) provides convenience for dental diagnosis and analysis [1]. CBCT three-dimensional images can provide more information about oral structure, making it possible to better understand and visualize data. Three-dimensional reconstruction of medical images is an important application field of scientific visualization technology, and it is the current research focus of medical image processing.