The white stripe next to the wisdom tooth may be a bite line, or it may be an oral ulcer, oral lichen planus, etc. 1. Bite line, due to frequent chewing and biting may stimulate the oral mucosa, so the bite line will appear, this situation is relatively normal. 2. Oral ulcers, some patients have oral ulcers after the oral mucosa is stimulated, may lead to mucosal color change, so this symptom will appear. 3. Oral lichen planus, if the patient’s body immunity is low, endocrine abnormalities, may induce oral lichen planus, resulting in mucosal swelling, white stripes. If the white stripe is more obvious, you need to consult a doctor in time for examination and treatment.