Excellent Denture Model: Ou Dental Demonstration Model look very realistic and natural, with a compact structure, just like real teeth. Very suitable for dentists to demonstrate, an excellent tool for students to learn or demonstrate children's brushing. Standard Tooth Model: The Dental Care Model has 28 immovable teeth and soft gums. There is no tongue. Durable Material: The teeth and base are made of safe and odorless plastic, and the gums are made of soft silicone, which can imitate the true state of human teeth. Easy to Open: The Dental Teaching Study can be opened 180 degrees to better show the compact structure of the teeth and the tooth structure in all directions.