Simulate the several stages of forming periodontal disease for patients and convenient for dentists to communicate with patients.
Help students to study periodontal disease easier and more vivid and it\'s really a useful equipment for students learning.
Ideal gift for children who aspires to be a dentists when they grows up.
Can be used for dentists studying, teaching and researching.
With tooth hoop for correcting the malocclusion. Two kinds of Type (Random)