Braces clinically refers to crowns, bad teeth do not necessarily have to wear braces, depending on the situation of tooth loss, you can choose to fill, inlays, full crowns and other restorative treatments. 1. When the tooth is missing, it can be filled and repaired, and composite resin is commonly used for filling and repairing in the clinic. 2. Inlays are a kind of restorations embedded inside the tooth to restore the form and function of the missing tooth. Dental defects after dental preparation, the remaining dental tissue can still withstand jaw force without fracture, and can provide sufficient retention for the inlay, then the inlay restoration of the indications. 3. Full crown is a restoration that covers the entire surface of the crown. Dental body serious defects, retention shape, resistance shape is poor, or filling the body or filling the retention shape, resistance shape is poor, should choose the full crown restoration. Therefore, you should consult a professional doctor for the specific situation of your teeth.