患者杨某,男性15岁,学生。主诉为颊唇侧硬块,伴经常性疼痛有时伴头痛,三年。并逐渐加重。 检查14、12已萌出,两牙相距6mm左右,13、11缺失,13区有似花生米大硬块,凸出牙槽骨约4mm,似骨组织,X片示13倒置。初诊为骨内埋伏阻生。手术治疗,2％利多卡因局麻,切龈去骨,顺利拔除患牙,术后1～3年随访观察,拔牙创愈合良好,头痛消失。 Yang patient, male 15 years old, student. Chief complaint for buccal labial lumps, with recurrent pain sometimes accompanied by headache, three years. And gradually increased. Check 14,12 has erupted, the two teeth are about 6mm away, 13,11 missing, 13 area is like peanut lumps, protruding alveolar bone about 4mm, like bone tissue, X-film showed 13 inverted. Initial diagnosis of intramedullary obstruction. Surgical treatment, 2% lidocaine local anesthesia, gingival degloving, successful removal of teeth, 1 to 3 years after follow-up observation, tooth extraction healed well, the headache disappeared.