下颌骨牙骨质瘤常见,但下颌骨巨大牙骨质瘤同时伴张口受限病例十分罕见[1]。我科近期收治了1例下颌骨牙骨质瘤伴张口受限病例。术后患者张口度明显改善,出院随诊2个月后患者开口度恢复正常,取得满意效果。现报道如下。1病例资料患者女,21岁,以“左下后牙槽部疼痛,开口受 Mandibular osteoma is common, but the vast majority of mandibular odontooblastic tumors with limited mouth opening are rare [1]. Recently admitted to our department 1 cases of mandibular osteoma of the mouth with limited cases of mouth. The degree of mouth opening of patients was significantly improved after operation, and the patient’s mouth opening returned to normal after 2 months of follow-up. Satisfactory results were obtained. Report as follows now. Case data 1 female patient, 21 years old, with ”lower left alveolar pain, opening by