Dental Transparent  Calculus Model Periodontal Disease Model With Removable Tooth Education Demonstration Typodont . Necessary tools for dental teaching and learning. Carefully selected materials, highly restored tooth color,calculus morphology. transparent gums for easier observation. Lightweight and simple, simple but ingenious everywhere, high-quality jaw frame for long-term use. Dental calculus made of special materialscan be used for real cleaning. and can be used fortooth preparation after cleaning. Teeth are not fixed, standard tooth models, can be replaced, reused for a long time. Can be installed on the dentalsimulator for practice use.