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牙齿并非如有些人所想像的,像石头那样实心一块,而是在牙齿的中央有道空腔,称为牙髓腔。在牙髓腔内有由神经、血管、淋巴组织组成的牙髓,以维持牙齿的营养和生命活动,牙髓通过牙根的根尖孔,与全身的血管、神经连为一体。由于疾病等原因,特别是蛀牙,可致牙髓发炎;许多人体会过的“牙痛惨过大病”的感受,很可能就是患上急性牙髓炎了。急性牙髓炎过后,牙髓往往
The teeth are not as solid as some people think, but as hollow in the center of the tooth, called the pulp cavity. In the pulp cavity by the nerves, blood vessels, lymphoid tissue composed of pulp to maintain the nutrition and life activities of teeth, pulp through the apical root hole, and the body's blood vessels, nerves connected as one. Due to diseases and other reasons, especially tooth decay, can cause pulp inflammation; many people have experienced “toothache miserable disease ” feeling, it is likely to suffer from acute pulpitis. After acute pulpitis, pulp often