If the worm tooth is always painful, the best way is to go to the hospital for filling and restoration, remove all the decayed teeth around the cavity and fill it with special material, only in this way can the problem of worm tooth pain be solved fundamentally. If you do not go to the hospital for treatment in time, the cavity will become deeper and deeper, and in serious cases, the nerve of the tooth may be exposed, causing nerve infection. Once the nerve of the tooth is damaged, root canal treatment is needed, after root canal treatment, the tooth will become easily broken without nutrient supply, and the effect of simple filling repair is not good, it is better to set porcelain crown, which can play a basic role in protecting the root of the tooth and can also restore the chewing ability of the tooth. The presence of worm teeth in the mouth proves that the oral hygiene is not very good, so after the treatment of worm teeth, special attention should still be paid to maintaining oral hygiene, brushing and rinsing the mouth on time to avoid the formation of new worm teeth, which can cause toothache.