The pattern of the teeth is the same with the size of the mouth. The size and appearance of the teeth are just like the real ones, 28 teeth in total, no wisdom teeth! Made of hard resin, similar to plastic, non-gingival soft. Durable and waterproof. Good example for teaching brushing and flossing. Prophylaxis cleaning, surface study, impression casting can be practiced. They are a great tool for teaching preschoolers how to brush and floss. The upper and lower jaws are connected by a hinge, you can open it up to 180 degrees. Clearly check the teeth of the total anatomy.