Tooth root tip grows outside is generally root exposure, this symptom is a typical manifestation of periodontitis, need to take medication, surgical treatment, etc.; but do not rule out is the tooth itself is more crowded caused by, this time you need to correct the deformity. 1. Physiological: if the teeth themselves are crowded, resulting in no space for the teeth to move outward, the root of the tooth is exposed; at this time, it can be adjusted through orthodontic treatment or by means of subtracting and extracting teeth, to correct the deformity of the root of the tooth outside by lifting the crowding. 2. Pathological: early periodontitis patients have secondary bleeding gums, bad breath and other manifestations; with the spread of inflammation, the formation of periodontal pockets, periodontal pus overflow, root exposure, tooth loosening and other manifestations. It can be treated by scaling and scraping, leveling the roots, applying antibiotics (such as metronidazole, amoxicillin, etc.), etc.; severe periodontitis requires surgery (such as periodontal flap surgery, etc.). However, it is not excluded that it is caused by other factors, no matter which factors cause the root of the tooth to be exposed, should consult the dentist in a timely manner, by the doctor to clarify the cause, to give targeted treatment, the use of drugs need to comply with the doctor’s instructions.