Whether or not convexity can be improved depends on the cause of the convexity, some can be improved and some may not. 1. Convexity is usually caused by dental problems. If the teeth are malformed or the angle of the teeth has changed, the symptoms of convexity may appear, which can be alleviated by wearing braces. 2. The convexity of the patient’s mouth may not be directly related to malocclusion, but may be caused by the protrusion of the upper and lower jaws, which may not be improved by braces, and requires orthodontic and orthomandibular joint treatment. If there are symptoms of convexity of the mouth, it is recommended to actively seek medical examination to understand the causes of convexity of the mouth. Usually also need to pay attention to personal dietary management, eat less spicy and stimulating food, pay more attention to rest.