唇挡对儿童面下部硬软组织侧貌影响的研究  

The Effects of Lip Bumper Therapy on the Lower Facial Profile of Children

作　　者：丁寅[1] 徐蕾[1] 

机构地区：[1]第四军医大学口腔医学院正畸科,西安710032

出　　处：《口腔医学》2004年第4期217-219,共3页Stomatology

摘　　要：目的　研究唇挡对替牙期及恒牙初期儿童面下部硬软组织侧貌形态的影响。方法　选择替牙期及恒牙初期下颌发育不良伴下牙列轻度或中度拥挤患儿 30例 (男 14例 ,女 16例 ) ,采用下颌唇挡治疗 6～ 10个月 ,进行治疗前后面部硬软组织X线头影测量分析。结果　唇挡治疗后下切牙唇倾 3.2 5°,呈以根尖为转动中心的倾斜移动 ,下颌第一磨牙远中倾斜 6 .13° ,呈以根分叉为转动中心的远中倾斜移动。下颌平面角增加 1.15° ,SNB角与面角无明显改变。颏唇沟厚度平均增加 1.2 3mm ,致使颏唇沟变浅 ,下唇角增大 (6 .0 5°) ,下唇及颏唇沟形态改善。结论　在儿童颌面部生长发育高峰期 ,唇挡可有效促进下颌牙弓生长发育 ,改善面下部硬软组织侧貌形态。Objective To study the effects of lip bumper therapy on the lower facial profile of the children with mixed and early permanent dentition. Methods 30 cases (male=14, female=16) with mandibular arch crowding or arch perimeter deficiency in the mixed and early permanent dentition were treated with shield lip bumper for 6-10 months. The cephalometric analysis was performed to appraise the effects of lip bumper therapy. Results After the treatment, the lower incisors were labially tipped for 3.25 degree, and the first molars were tipped distally for 6.13 degree. FMA was increased by 1.15 degree, but SMB and facial angle were the same as those before the treatment. The thickness of mental-labial sulcus was increased by 1.23mm, which decreased the depth of mental-labial sulcus and improved the lower facial profile of the patients. Conclusion The lip bumper could play an important role in the mandibular arch development and lower facial profile improvement in mixed and early permanent dentition.

关 键 词：唇挡 下颌生长发育 X线头影测量 

分 类 号：R783.5[医药卫生—口腔医学]