Inflammation of the root tip after stump staking and crowning may require removal of the stump and then root canal treatment. There is generally no better way to relieve apical inflammation after stump staking and crowning. Simply relying on the use of metronidazole, ornidazole and other medications may not achieve a better result, but only temporary relief of the inflammation, and can not be completely removed. At this time, you can first remove the braces to take out the stump and then come back for root canal treatment. General crown restoration may have tooth pain and swelling, inflammation and other symptoms, mainly due to various causes of apical lesions, this situation needs to pay attention to timely medical treatment, so as not to lead to the late recovery of the teeth affected. Usually need to pay attention to personal oral hygiene, keep the mouth clean.