What kind of health certificate is needed for dental work?

Public health certificate. It is a proof of preventive health examination, which proves that the examinee has the health quality that meets the business requirements. Health certificate mainly involves six diseases in five industries, which largely protects the health of employees and clients. Health certificate refers to the pre-post, pre-post and age-appropriate health examination for personnel engaged in food and drinking water production and management, personnel directly engaged in cosmetics production, personnel who directly serve customers in public places, hazardous workers, radiation workers and school students according to the provisions of national health laws and regulations.