SENSORY BRUSHING TOYS: sensory cognitive learning, hands-on and brain use, multiple development of baby intelligence SUITABLE RANGE: suitable for children over 3 years old, demonstrate brushing teeth for children SCIENTIFIC DEMONSTRATION: dental teaching model includes implant model and fixed prosthesis, which can help explain the insertion of the prosthesis. BRUSHING TEACHING COGNITION: Cultivating children's daily habits, teaching children to recognize tooth structure APPLICATION: tooth model or tooth learning device for teaching dental courses, dental research teaching model, dental laboratory model.