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患者潘某,男性,22岁,1987年7月9日因左下前牙反复疼痛数月加重2天就诊。检查见唇侧远中位扭转,牙冠上2/3部份呈白色,下1/3部份呈黄白色。颈部形成台阶竹节状,未见龋坏,唇侧龈瘘,叩痛+++,松动Ⅰ°。X片示:尖周阴影,呈双根,齿槽骨轻度吸收。探查节结,见节结台阶为牙冠断面,呈乳白色。诊断:慢性根尖周炎;从髓腔内萌出。处理:开放引流。一月后复诊,作常规变干疗法充填。 后因患者坚决要求拔除作义齿修复,患牙拔除后见其离体牙为唇舌二根,唇侧根复盖于根上。颈部显示台阶样节结状,近中面两根间有明显的分界裂沟,远中面冠部与颈部呈骨性融合,舌侧亦可见冠部残留部份与颈部呈骨性融合,呈乳白色,呈黄白色。经离体牙解剖完全证实从髓腔内萌出。
Panmou patients, male, 22 years old, July 9, 1987 due to repeated pain in the lower left anterior teeth for several months increased treatment 2 days. Check the lips to see the far side of the median twist, crown 2/3 part of the white, the next 1/3 part was yellow-white. The formation of a step-shaped bamboo-like neck, no caries, labial gingival fistula, percussion pain +++, loosening Ⅰ °. X-ray shows: a sharp shadow, was double root, alveolar bone absorption. Exploration node knot, see the knot step for the crown section, milky white. Diagnosis: chronic apical periodontitis; eruption from the medullary cavity. Treatment: open drainage. One month after the referral for routine dry therapy filling. After the patient was strongly asked to remove the denture to repair, after removal of the teeth to see their isolated teeth for the two lips, lip lateral root cover in the root. The neck showed a step-like nodal knot, and there was a clear division fissure between the two mesiodes. The coronal and neck bones in the distal midline were bony fusion, and the residual part of the crown and the neck were also visible on the lingual side Fusion, milky white, yellowish white. The anatomy of the tooth completely confirmed from the marrow cavity eruption.