薄型牙槽骨的重度前牙开病例治疗1例  

Treatment of a patient with considerably thin alveolar bone and severe open bite

作　　者：卓海亚 胡洲[1] 赵青[1] 

机构地区：[1]口腔疾病研究国家重点实验室国家口腔疾病临床医学研究中心四川大学华西口腔医院正畸科,成都610041

出　　处：《华西口腔医学杂志》2018年第1期109-114,共6页West China Journal of Stomatology

基　　金：国家自然科学基金(81371113)~~

摘　　要：本文报告1例25岁女性重度开患者的治疗。患者Ⅲ度开,全口牙槽骨极薄,唇舌侧根型明显,采用固定矫治并配合肌功能训练,在治疗过程中上颌尖牙穿出唇侧骨皮质,将上颌双侧尖牙托槽换成HX托槽并进行龈向反向粘接,同时减少唇肌训练的强度和时间后,尖牙牙根重新位于骨松质中,矫治后建立了正常的覆覆盖,尖牙、磨牙达到Ⅰ类关系,咬合功能良好,面形得到改善。本病例表明非骨性重度开病例通过固定矫治配合有效的肌功能训练可以得到很好的治疗效果。This case report describes the treatment of a 25-year-old woman with a severe open bite. This patient presented a grade Ⅲ open bite, considerably thin alveolar bone, and evident labial buccal and lingual root form. The open bite was cor-rected by fixed orthodontic treatment and masticatory exercises. However, the increased pressure in the labial muscle caused by lip muscle exercise suppressed the canines, which resulted in the protrusion of the apices of canine roots out of the alveolar bone. Afterward, HX brackets, instead of self-locking, were used and bonded reversely in the occlusal-gingival direction on the upper canines. The lip muscle exercises were decreased. After adjustment, the roots penetrated back into the cancellous bone, the severe open bite was corrected, and a normal overbite and overjet were achieved. ClassⅠcanine and molar relation-ships were established. The masticatory function and profile were both considerably improved. This case report showed that a severe nonskeletal open bite can be corrected using orthodontic treatments combined with masticatory exercises.

关 键 词：开[牙合] 薄型牙槽骨 固定矫治 肌功能训练 

分 类 号：R783.5[医药卫生—口腔医学]