Having a gap can be remedied by orthodontics, dental prosthetics, and crown restoration. The effectiveness of treatment can be determined by the patient’s own situation, treatment plan and other factors, there is no such thing as the best method. It is recommended to choose the appropriate treatment plan under the guidance of the doctor. 1. Orthodontics: It is suitable for teeth misalignment, tooth shape and other causes of excessive gaps. Fixed orthodontic appliances and functional orthodontic appliances can be worn for orthodontic treatment to repair the symptoms of large gaps between teeth. 2. Dental Repair: It is suitable for patients with large gaps caused by damage or abnormality of hard tissues and anatomical shapes of the teeth. By using special materials to fill in the gap, in order to alleviate the situation of large gaps. 3. Crown restoration: To restore the ideal shape of the tooth through crown restoration to solve the situation of large gaps. Commonly used are porcelain crowns and all-porcelain crowns. The treatment effect can be decided according to the patient’s own situation, treatment program and other factors, there is no such thing as the best method. It is recommended to choose the appropriate treatment plan under the guidance of the doctor.