The white raised line on the wall of the mouth where the teeth meet is the buccal white line. Buccal white line is located in the buccal part of the mucosa corresponding to the occlusal surfaces of the posterior teeth of both cheeks, is a continuous white or gray-white line, matching the shape of the teeth, from the corner of the mouth area to the molar area in a horizontal extension, mostly due to the continuous stimulation of the teeth during mastication, common in adults, and often have no self-conscious symptoms. If there are obvious occlusal abnormalities, there may be local occlusal trauma or obvious hyperplasia, you can let the doctor to adjust the grinding of the teeth to improve the occlusal relationship, to reduce the buccal mucosa for the local stimulation, we recommend that patients with buccal white line, do not be overly nervous, you can go to the regular hospital stomatology department for examination, do not often go to stimulate the oral mucosa, at any time to follow-up the observation, do not be negligent, in order to avoid delaying the condition.