结果：本组病例各种类型冠折207例，根折23例。
Results: 207 cases were crown fractures, while 23 cases were root fractures.
目的：观察根管治疗后的下颌磨牙冠缺损类型与冠根折的关系。
Objective: To evaluate the relationship between crown defect types and crown fractures of root-canal-treated mandibular molars.
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。
Objective To observe the clinical efficacy of endodontic-orthodontic combined treatment for anterior teeth with crown-root fracture.
目的：观察用改进的固定矫治器进行牙根牙合向牵引治疗前牙冠根折的临床疗效。
Objective To observe clinical efficacy of crown lengthening surgery for the treatment of crown-root-fractured teeth, subgingival fractured edge.
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。
Conclusion: Tooth extrusion method with new method is an effective method for anterior teeth with crown-root fracture.
目的：提高牙根中部以下根折恒前牙复位后牙髓的存活率和死髓后根管治疗术的质量。
AIM: to raise the living rate of pulp after review of the permanent-front-teeth with root-fractured beneath the middle and improve the quality of root-tube-treatment to the dead pulp teeth.
方法选择隐裂、根折或根分叉病变患者，对欲保留牙根进行根管治疗后，行半牙切除术。
Methods Hemisections were performed on reserved canals of incomplete tooth fracture, complete root fracture and furcation involvement after root canal therapy.
结论：根管内加齿槽骨钛桩内固定即刻修复年轻恒前牙根折，方法简单可行，临床应用效果好。
Conclusion: This method which can survive the root-fractured young permanent anterior teeth is practical and effective for dental clinic.
临床常见牙齿创伤导致根折，单一折裂线的病人经保守治疗后多能愈合，而伴有多个折裂线的复杂根折病人如果处理不当，常导致失牙。
Root fracture with single fracture line can often healed after simple treatment, while root fracture with mult-fracure lines was often extracted.
离开前，我会折一根软树枝，扫净地上的足印。
为了吓唬那只狗，他从树上折了一根小树枝。
结论根管治疗后用光固化树脂充填前磨牙的各类洞，牙体的抗折强度优于用银汞充填者。
Conclusion the fracture strength of premolar teeth filled with light curing composite resin was higher than filled with amalgam after root canal therapy.
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。
Objective To investigate the clinical effect of one-time root canal therapy and reattachment of permanent incisors with crown fracture.
亲爱的爸爸，就把你回家路上碰着你帽子的第一根树枝折给我吧。
Father, break off for me the first twig that brushes against your hat on your way home.
目的研究后牙冠根纵折的特点和临床表现，客观评价最佳的治疗和预防措施。
Objective To investigate the characteristics and clinical features of the longitudinal fractures of posterior teeth and evaluate the therapeutic methods.
目的比较预备与不预备的根管以及预备后充填与不充填的根管抗折力。
Objective To compare the resistance to fracture of the root canals after instrumentation or not.
雨伞用来防风雨装置，由某在一根中心柱上的可折收的，经常是圆形的罩蓬构成。
A device for protection from the weather consisting of a collapsible, usually circular canopy mounted on a central rod.
目的：观察不同根管锉预备根管及不同面充填物对前磨牙牙体抗折强度的影响。
Objective: to observe the effects of different root canal file and the restoration of occlusal surface on the fracture resistance of premolars.
目的：对外伤引起的年轻恒前牙冠折露髓行活髓切断术，并于2年以上追踪观察其根管、根尖孔发育情况。
Objective:To treatment the young permanent incisors with exposed pulps in crown by pulpotomy and observe the growth of root canals and apexogenesis following up over 2 years.
目的应用黏接再植术及牙周翻瓣植骨术对后牙冠根纵折伴牙周脓肿手术治疗的疗效进行评价。
Objective To evaluate the clinical effect of bonding and surgical therapy on fractured crown-root complicated with periodontal abscess.
你为什么不从这棵树上折一根树枝做手杖呢？
Why don't you break a branch off the tree and make a walking stick?
方法选择合适病例，采用钢丝结扎，根管治疗和牙周治疗、全冠修复等多种方法，对磨牙纵折予以保守治疗。
Methods the proper cases were selected to be ligated with wire, pulp extirpation, peridental therapy and crown repair in conservative treatment.
你可能折了一根肋骨。
林隙形成方式由树木折干形成的最为普遍，占形成木总数58.04％，其次是由于掘根风倒而形成的，占33.48％。
The most popular manner of gap formation in the forest was stem breakage (58.04% of the total), and the second, uprooting (33.48%).
方法：通过观察4 7例冠根纵折的病例，对牙位、牙髓状态、牙髓治疗情况进行回顾性分析。
Methods: 47 cases were analyzed by respective study to analysis the cauese , clinical characters . diagnosis and prevention methods of vertical root fracture.
由圆桶状钢套及其端面侧壁伸出带一折的窄钢片，在窄钢片上固定有一根铜针。
A narrow steel sheet with one-folding extends out of a barrel-shaped steel jacket and the side wall of the end surface, and the narrow steel sheet is fixed with a bronze needle.
一根筷子容易折，一把筷子难折断：简单地说，就是人多力量大、团结力量大。
One chopstick is easy to break but a bunch of chopsticks are not easy to break.
摘要【摘要】目的探讨几种根管预备方法和充填技术组合对根尖微渗漏和牙根抗折强度的影响。
Abstract: Objective: to explore the influence on micro leakage from root tip and tooth root's bending strength by different combinations of root canal preparation and filling technology.
本实用新型涉及一种用于将多根电线捆扎成束，或者将一根电线收折束起的电线扎束带。
The utility model relates to an electric wire bundling belt used for bundling a plurality of electric wires or folding an electric wire.
一根筷子容易折一把筷子中的难折断中两个“折”读音一样吗?。
One chopstick is easy to break but a bunch of chopsticks are not easy to break.
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