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牙疼是怎么回事？为什么牙疼时吸烟会更加疼痛？专家给出了答案
牙痛是一种常见疾病，其表现为：牙龈红肿、遇冷热刺激痛、面颊部肿胀等；牙痛大多由牙龈炎和牙周炎、龋齿（蛀牙）或折裂牙而导致牙髓（牙神经）感染所引起的，牙疼的主要原因往往跟感染有关，吸烟是会加重压痛的，主要是由于：一、抽烟时口腔里面的局部毛细血管会发生收缩、萎缩，导致局部组织内的血运
医生科普牙齿口腔那些事儿149/241
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