Objective To estimate the effect of restorative treatment on conserving posterior crown fracture tooth.
目的：评估用修复的方法保存后牙牙冠纵裂牙齿的效果。
Objective to investigate the clinical effect of partial pulpotomy on young permanent incisors with complicated crown fracture.
目的观察部分活髓切断术治疗年轻恒牙冠折露髓的临床效果。
Results:Of the teeth, 61.2% were prosthetic failures which were due primarily to crown fracture. 29.8% were periodontal failures.
结果：与修复有关的失败占6 1 .2 % ，其中主要是冠折。与牙周疾病有关的失败占2 9.8%。
Objective To investigate the clinical effect of one-time root canal therapy and reattachment of permanent incisors with crown fracture.
目的：观察恒切牙外伤冠折后行一次性根管治疗与断冠再接术的临床效果。
Dental trauma may happen to a single tooth or more. Avulsion was most like to accompany with other traumatic teeth. Crown fracture was also like to involve more than one tooth.
牙创伤可以在单颗牙齿发生也可累及多颗牙，牙脱出最容易累及多颗牙，冠折也常累及多颗牙。
PURPOSE: To study the effect of ion-exchange treatment on the fracture resistance of hot pressable ceramic crown.
目的：研究国产陶瓷表面离子交换处理对热压铸瓷冠抗碎裂载荷的影响。
This paper studies the fracture mechanics of piston crown crack by means of finite element method and photoelastic method.
本文应用有限元法和光弹性试验对活塞顶的裂纹进行断裂力学分析。
Objective to study the crack initiation and fracture of porcelain-fused-metal (PFM) crown under monotonic load by means of experimental techniques.
目的研究烤瓷熔附金属冠中央窝受单调递增静态载荷下的裂纹产生和破坏形式。
To evaluate the effects of the different amount of residual tooth on the fracture resistance ability of lower premolars restored with fiber quartz-fiber post-core and full crown.
评价不同牙体剩余量对石英纤维桩复合树脂核全冠修复下颌前磨牙抗折性能的影响。
Conclusion the aesthetic effect, margin fitness and anti-fracture strength are excellent in gold galvanized porcelain fused crown.
结论金沉积烤瓷冠具有良好的美观效果，边缘密合度好，抗折强度高。
Objective To observe the clinical efficacy of endodontic-orthodontic combined treatment for anterior teeth with crown-root fracture.
目的观察牙体牙髓-正畸方法联合处理恒上前牙冠根折的临床疗效。
Conclusion: Tooth extrusion method with new method is an effective method for anterior teeth with crown-root fracture.
结论：使用改进的固定矫正器进行牙根牙合向牵引治疗前牙冠根折的方法有效可行。
Objective:To observe the clinical effect of tooth extrusion with progressive methods for anterior teeth with crown-root fracture.
目的观察牙冠延长术治疗断缘位于龈下的冠根联合折断牙的临床效果。
Abstract: Objective to compare the restorative effects of crown lengthening surgery and gingivectomy on dowel crown of deep-seated subgingival teeth fracture.
摘要：目的比较牙冠延长术与牙龈切除术用于残根残冠桩冠修复中的疗效。
Abstract: Objective to compare the restorative effects of crown lengthening surgery and gingivectomy on dowel crown of deep-seated subgingival teeth fracture.
摘要：目的比较牙冠延长术与牙龈切除术用于残根残冠桩冠修复中的疗效。
应用推荐