目的：探讨前牙区埋伏牙的临床特点及治疗。
Objective: to discuss clinical symptom and therapy for the anterior embedded tooth.
目的：建立兔下颌骨前牙区剩余牙槽嵴实验动物模型。
OBJECTIVE: To establish a rabbit animal model of anterior residual alveolar ridge.
结论：上颌前牙区的即刻种植修复应用有较好的临床疗效。
Conclusion:It is evident that immediate loading protocols of single tooth implantation in the anterior maxilla are successful.
下颌前牙区平均骨密度值最大，上颌后牙区平均骨密度值最小。
Anterior mandible has the highest mean bone density and posterior maxilla has the lowest mean bone density.
摘要目的探讨上颌前牙区微种植体支抗压低上前牙改善露龈笑的临床疗效。
Abstract: Objective to explore the clinical effects of anterior maxilla micro-implant anchorage on the anterior teeth intrusion to improve gum-smile.
目的：评价IT I种植体在前牙区单颗牙缺失即刻种植即刻负重修复的临床效果。
Objective: to investigate the clinical results of ITI implants System in Immediate implants and Immediate loading of single tooth loss.
目的评价上颌前牙区牙槽骨吸收的患者应用骨挤压联合骨引导再生术行种植体植入的临床效果。
Objective To evaluate the clinical treatment effects of bone condensing combined with guided bone regeneration technique in inserting implants in atrophic maxillary anterior region.
目前无论是从改进临床技术操作还是喷涂陶瓷于种植体颈部以及陶瓷基桩等方法来改善前牙区灰色，都存在一定的问题。
At present, all methods exist in some problems, no matter the advanced clinical operate or spraying ceramic on dental implant neck and ceramic abutment etc.
四环素变色牙、釉质发育不全、死髓变色牙、牙体间隙及牙体缺损缺失等因素均能够影响牙体或牙列的功用和美观，后者在前牙区尤其突出。
Objective To compare the esthetic effect and the change of periodontal tissue in restoring anterior teeth with porcelain fused to metal crown and all ceramic crown.
方法随机选择16例前牙和前磨牙区因瓷裂或瓷崩而导致失败的病例，记录修复体损坏的部位，分析产生失败的原因。
Methods 16 cases with fracture or exfoliation on the area of anterior teeth and premolar were selected, the damage's parts of prosthesis were recorded, and the causes of failure were analyzed.
方法：8例前牙美观区缺失伴唇颊侧牙槽骨凹陷畸形要求种植修复患者，采用自体碎骨屑移植充填骨缺损区，无孔纯钛膜覆盖治疗，共计植入种植体19枚。
Methods:8patients with bone defects in the aesthetic zone were implant19dental implants, the defects around implants were filled with autograft bones, and then covered by titanium membranes.
拉应力集中区由基托前腭部、前牙腭侧移动到唇系带切迹区；
The central zone of tensile stress moved to the frenal notch from the pre palate and palatal side of the denture incisor of the base;
方法随机选择16例前牙和前磨牙区因瓷裂或瓷崩而导致失败的病例，记录修复体损坏的部位，分析产生失败的原因。结果瓷裂或瓷崩发生在切缘的病例数为10例占6 2。
Methods 16 cases with fracture or exfoliation on the area of anterior teeth and premolar were selected, the damages parts of prosthesis were recorded, and the causes of failure were analyzed.
方法随机选择16例前牙和前磨牙区因瓷裂或瓷崩而导致失败的病例，记录修复体损坏的部位，分析产生失败的原因。结果瓷裂或瓷崩发生在切缘的病例数为10例占6 2。
Methods 16 cases with fracture or exfoliation on the area of anterior teeth and premolar were selected, the damages parts of prosthesis were recorded, and the causes of failure were analyzed.
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