[Product Name] Generic name: teeth (hereinafter referred to as this product) English name: tooth, teeth (compound) [Product Specifications] 20 milk teeth, permanent teeth 28-32. 【Product expiration date】 Design life of 100 years, the actual life depends on personal use habits. Quality Assurance】 This product is not returnable, the original factory without accessories. Storage conditions】 The best dark and humid place, avoid long-term dry environment. Production date] See ID card date of birth. (The milk teeth have been ossified at birth) 【Product function】 1.Chewing: This product has the function of cutting and grinding food. 2.Pronunciation and language: This product can cooperate with the tongue to complete the pronunciation. 3.Keeping the normal shape of the face: This product can support the lip and cheek to make the human face and lip and cheek look full. [Name of each part of the components] 1.This product is part of the oral cavity and cannot be split and used separately. 2, teeth can be divided into incisors, cuspids, bicuspids and molars 4 kinds. Each tooth is composed of a crown exposed outside the alveolar bone and a root growing inside the alveolar bone, as well as a neck between the crown and the root. Precautions for use】 1. Avoid biting hard objects 2. Avoid drinking a lot of carbonated drinks, tea and coffee for a long time 3. Avoid smoking 【Daily maintenance】 1. Balanced diet 2. Proper brushing and flossing 3. Regular checkup 4. Regular scaling 5. Sports protection 6. Users who have the above problems may have toothache, missing teeth, chewing weakness, restricted mouth opening, affecting aesthetics and other symptoms.