中华口腔医学研究杂志(电子版) ›› 2015, Vol. 09 ›› Issue (05) : 405 -408. doi: 10.3877/cma.j.issn.1674-1366.2015.05.010 × 扫一扫
所属专题: 文献;
临床研究
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通信作者:
Zelong Luo1, Zhifang Li2,†()
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罗泽龙, 李志芳. 微种植钉在正畸治疗双颌前突伴露龈笑中的应用[J]. 中华口腔医学研究杂志(电子版), 2015, 09(05): 405-408.
Zelong Luo, Zhifang Li. The application of miniscrews in bimaxillaryprotrusion patients with gummy smile[J]. Chinese Journal of Stomatological Research(Electronic Edition), 2015, 09(05): 405-408.
探讨微种植钉在治疗双颌前突伴露龈笑患者上的临床效果。
选取8例临床表现双颌前突伴露龈微笑的患者,在前牙区与后牙区植入微种植钉,并以其为支抗内收压低上切牙。治疗前后测量头颅定位侧位片与模型,t检验比较治疗前后测量值间的差异。
治疗前后上下切牙牙轴间差异有统计学意义(U1-SN:t = 11.993,P = 0.001;L1-MP:t = 6.439,P = 0.001),上下切牙治疗前后的垂直向位置差异有统计学意义(U1/PP:t = 2.591,P = 0.018;L1/MP:t = 4.339,P = 0.002)。软组织测量值及牙龈暴露量呈明显改善(GSL:t = 3.198,P = 0.008)。
在治疗双颌前突伴露龈微笑患者时,可选择在前牙区与后牙区植入微种植钉,有助于在内收前牙的同时改善露龈笑。
To evaluate the clinical outcome of miniscrews in treating bimaxillary protrusion patients with gummy smile.
Eight bimaxillary protrusion adults with gummy smile were selected for the study. Miniscrews were inserted in anterior and posterior alveolar process. The incisors were retruded and intruded by means of the miniscrew anchorage. The pre-and post-treatment cephalometric images and models were measured for the statistical analysis.
Statistical significant differences were shown between the pre-and post-treatment incisor inclination (U1-SN: t = 11.993, P = 0.001; L1-MP: t = 6.439, P = 0.001) . After treatment, statistical significant differences were also shown in the vertical position of both upper and lower incisors (U1/PP: t = 2.591, P = 0.018; L1/MP: t = 4.339, P = 0.002) . The soft tissue profile and the gum exposure were improved (GSL: t = 3.198, P = 0.008) .
Placement of miniscrews in both anterior and posterior alveolar process to retrude and intrude the incisors is remcommended to bimaxillary protrusion patients with gummy smile.