【Realistic appearance】: periodontal problems, realistic display for educational and study teaching. Portable, easy to use, lightweight, durable. 【Wide usage】Dental periodontal disease model is a great tool for dental hygiene and oral care teaching,and use to educate children to brush and care their teeth. 【High quality material 】Made of high-quality resin material, corrosion resistant and environmentally friendly.Widely used in dental schools in educational programs. 【Size】The larger size helps students to study periodontal disease easier and more vivid. Each tooth represent a to allow easy comparison of stages. 【Reasonable Design】5 Teeth which vividly show the process of tooth decay development. Best gift for dentist to communicate with their patients.