Tooth defect with bad proximal relation and food impaction need recover proximal contact.
因牙体缺损的邻接不良或食物嵌塞严重，需恢复邻面接触点者。
Young patient with high requirement for appearance and long-term effect, patient with bad psychology, tooth defect of anterior tooth.
对于美观及长期效果要求高的年轻患者 或心理素质不理想的患者，前牙缺损慎 用嵌体修复。
Serious tooth defect which involved cuspid, incisal Angle, marginal ridge and occlusal surface can't be filled and need occlusal reconstruction.
各种严重的牙体缺损已涉及牙尖、切角、边缘嵴以及合面，需要咬合重建而不能使用一般充填修复者。
Methods: the gingivoplasty with electrotome in 81 patients with tooth defect was performed in prosthetic department and follow up surveys wer carried out.
方法：对81例口腔修复门诊牙体缺损患者用电刀进行牙龈成形术并定期复诊观察。
Objective:To investigate the restorative condition of the edentulous, dentition defect and tooth defect in Beijing Stomatological hospital in recent two years.
目的：了解近两年口腔患者牙列缺失、牙列缺损及牙体缺损的特点及修复状况。
Conclusion Fixed partial dentures are the most common prostheses for tooth defect, and are characterized by the growing application of advanced techniques and high-quality materials.
结论固定修复体仍是目前临床最常用的牙体和牙列缺损的修复方式，其变化主要表现在新技术和优质材料的选用增加。
What is the defect of the structure of the tooth(teeth)?
什么是牙齿结构上的缺陷呢？
Conclusion 3m has good aesthetics results and effective clinical results, which is suitable materials for restoration of tooth cervix defect.
结论：3M光固化复合树脂具有较好的美观性和较高的临床疗效，是用于牙颈部缺损美容修复的良好材料。
Objective To observe the effects of mucogingival tissue regeneration technique(MGTR) on periodontical alveolar bone regeneration in dogs with buccal alveolar bone defect of the tooth.
目的利用外科手术造成的狗颊侧牙周骨板缺损模型，观察应用膜诱导组织再生技术后牙周骨组织再生的效果。
Objective: To evaluate the clinical of using prefabricated cylindrical root canal pin to lengthen the clinical crown and restoring anterior tooth and premolar defect with PFM.
目的：评价应用预成圆柱形根管钉对前牙牙体缺损患者冠再接后烤瓷修复体的临床效果。
Wedge-shaped defect is an abrasion that caused by long-term abrasion in tooth cervical.
牙楔状缺损是牙颈部硬组织缓慢磨耗所致的缺损，由于这种缺损常呈楔形而得名。
Methods: The result of making stealthy false tooth in 262 patients with dentition defect was analyzed.
方法：对262例牙列缺损患者制作隐形义齿后的结果进行分析。
Conclusion to save the tissue of tooth and restore the defect with cast post-core.
结论：应尽量保存牙体组织，其不足部分用核桩恢复。
Some had different degree defect of dentition, deciduous tooth retention, caries or periodontitis.
有些病例伴有牙列缺损，有些病例还有乳牙滞留、龋病、牙周病等。
Methods The diagnosis and treatment process of 23 patients with dentition defect and severe tooth wear was retrospectively analysed.
方法对23例牙列缺损伴重度磨耗患者的临床诊治过程进行回顾性分析。
Conclusion: The defect treatmen of glass fiber post in a single premolar tooth root canal can achieve satisfactory results.
近年来，作者采用玻璃纤维桩进行前磨牙牙体缺损的修复，取得了良好的临床效果。
Conclusion: The defect treatmen of glass fiber post in a single premolar tooth root canal can achieve satisfactory results.
近年来，作者采用玻璃纤维桩进行前磨牙牙体缺损的修复，取得了良好的临床效果。
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