Objective Study the effects of Gu Chi paste on PGE2 in gingiva and alveolar bone and its mechanism to treating periodontitis.
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2. 结论正常牙合个体的上、下颌骨是协调发育的。
Conclusion The development of maxilla and mandible is coordinated in individual with normal occlusion.
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3. 前方牵引器；快速扩弓；骨性前方反牙合。
Front tractor; Rapid expansion bow; The front teeth osteoarthritis.
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4. 目的评价前方牵引器联合快速扩弓矫治恒牙早期骨性前牙反牙合的有效性。
Objective To evaluate the maxillary protraction appliance permanent teeth combined rapid expansion of early bone anterior crossbite effectiveness.
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5. 目的：探寻临床对前牙骨性反牙合的有效治疗方法。
Objective: To study the treatment method of the skeletal anterior cross bite.
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6. 目的研究骨性反牙合的矫治方法与效果。
Objective To study the treatment methods and effects of the skeletal crossbite.
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7. 但是，钛属于生物惰性材料，不能与骨组织形成化学键合或称骨键合。
However, titanium cannot bone-bond with bone tissue and was thought to be bioinnert.
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8. 手术成功的关键除骨瓣的植入外，骨折端应有良好的对合和妥善的内、外固定。
The key for success of this technique was satisfactory reduction of both ends of fracture and proper internal and external fixation besides implantation of bone flap.
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9. 目的：建立不同垂直骨面型正常牙合人切牙区颌骨形态结构的正常值。
Objective: To establish the cephalometric standards for in ci sal jaw morphology in the subjects with normal occlusion and different vertical facial skeletal types.
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10. 本文报告68例非颌骨性的上下前牙牙槽性错(牙合)畸形的外科正畸手术。
Cases of orthognathic surgery on alveolar malocclusion of both maxillary and mandibular anterior teeth were re - ported.
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11. 该挠性骨复 合材料包括至少一个聚合物层和至少一个含钙层。
The flexible bone composite includes at least one polymeric layer and at least one calcium-containing layer.
However, the natural titanium oxide film formed on its surface make it bio-inert, it is difficult to achieve chemical bond with bone and form new bone on their surfaces;
However, the natural titanium oxide film formed on its surface make it bio-inert, it is difficult to achieve chemical bond with bone and form new bone on their surfaces;
