3D reconstruction of human enamel Ex vivo using high frequency ultrasound

This paper introduces a new scanning system which collects structural information of tooth surface and enamel-dentine junction. A 3D motorized scanning stage is used to control the moving trajectories of an A-mode transducer so as to acquire the echoes from the surface of a tooth. The enamel in a 3D form will be reconstructed with this system. Despite some discontinuous areas appearing in the 3D image, the 3D representations of human molars well duplicate the real samples and the thickness of enamel can be measured.