Patient: 1. One tooth is missing from the lower right tooth, and I don’t know what kind of repair is suitable? 2. The tooth grinding is very strong at night, and it is in deep distress, can it be treated? Jiang Ting, Department of Prosthodontics, Peking University Stomatological Hospital: Are the teeth adjacent to the missing tooth sound? If yes, implant or movable denture repair is recommended, if not, fixed bridge repair can be considered. Night grinding teeth can be worn at night with soft fitting pads to reduce the symptoms and protect the teeth. It will be 3 weeks later if you make an appointment.