Tooth swelling pain bite more pain may be the emergence of acute pulpitis or acute periapical inflammation, need to be examined to confirm the diagnosis and consider the opening of pulp drainage, root canal treatment. 1. Acute pulpitis. Tooth swelling and pain bite more pain, may be the emergence of acute pulpitis, pulp cavity fluid intensification caused by swelling and pain, at the same time in the apical area of the inflammation exudation caused by dare not bite. General emergency treatment to open the pulp drainage, extraction of the pulp after the pain is significantly relieved. 2. Acute periapical inflammation. Long-term inflammation of the pulp will develop into periapical inflammation, which can lead to tooth swelling and pain, not dare to bite. Root canal treatment is usually performed to open the pulp. Tooth swelling and biting pain is mostly a dental disease, specific need to go to the hospital to do an oral examination after filming targeted treatment.