冠折包括部分冠折裂、全冠折断。
The crown fractures included partial crown split and full-crown fractures.
目的研究后牙折裂综合治疗后的保存效果。
Objective To research the preserved effect with complex therapy of the fractured premolars and molars.
其还赋予涂层拉变色效应以及极好的折裂效应。
基牙折裂及折断占拆除原因的第二位为6 1例；
The second cause was fracture and broken down of the abutment (61 cases);
引用折裂率的概念探讨牙折裂与年龄增长的相关性。
To discuss the relevance between tooth fracture and the age growing, the concept of fracture rate has been quoted.
目的：了解金属全冠对舰艇人员折裂牙修复的作用。
Objective: To find out the effect of metal full crown in the restoration of seamen's split teeth.
受雨淞为害的毛竹出现折裂、倒伏和弯曲变形三种情况。
Phyllostachys pubescens harmed by glazed frost shows breaking, lodging and winding.
湿陷性黄土地基易变形，会使建筑物大幅度沉降、折裂及倾斜。
The collapsibility farmland is easy to change, which make the make building appear substantial settlement, fracture and tilt.
结果折裂磨牙的折裂部位，治疗时机对患牙愈后有显著相关性。
Results the relevance test show that the treatment time after fracture and the location of the fracture are the main risk factors on the treatment.
结论：牙折裂只要采取及时有效的治疗，部分患牙是可以保留的。
Conclusion: If taken for lacking of effective treatment on teeth fracture of prevention methods, then the fracture molar can be conserved.
目的探讨在折裂牙治疗中，不同的裂纹方向与患牙预后是否存在相关性。
Objective To investigate the relationship between trouble tooth prognosis and the cracking direction in fractured tooth treatment.
结论：金属全冠对舰艇人员折裂牙的修复非常有效，应作为折裂牙修复之首选。
Conclusion: The method of restoring seamen's split teeth with metal full crown is very effective, and should be chosen first.
比较纤维桩核系统和金属铸造桩核系统修复后牙体组织的抗折裂强度和折裂模式。
Objective To compare the fracture resistance and fracture modes of teeth restored with four diferent post-and-core systems.
以上环节中若出现大于允许应力时，就会导致破坏性损伤，甚至折裂、坍塌等严重后果。
If the above link is greater than the allowable stress, it will lead to destructive damage, or even crack, collapse and other serious consequences.
目的：分析老年人可摘局部义齿折裂的设计因素，旨在提高可摘局部义齿的设计水平和质量。
Objective: to analyses the design factors contributed to the fracture of removable partial dentures in the elderly in order to improve the design level and the quality of the dentures.
方法选择92例患者的105颗磨牙折裂，完成牙体根管治疗，桩核制作并进行金属全冠或烤瓷全冠修复。
Methods 105 fracture molar teeth in 92 patients, treated pulp normally fulled and fixed it and then repair the whole coronary.
出现粘接的带钢卷层在平整开卷时将产生很高的开卷阻力，并在带钢表面造成带钢撕裂或折裂，同时伴随有开卷噪音。
As the result, cracks are emerged in the steel strip, and high level of noise is caused. Various factors are contributed to the adhesion, some of which are interacted.
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.
临床医生对牙折裂修复技术进行了适当的分类，包括斜面设计、削尖式肩台、牙本质和釉质沟、复合树脂材料的选择以及牙碎片再附着过程的技术细节。
Clinicians have employed an assortment of bevel designs, chamfers, dentinal and enamel grooves, and choices of resin composite materials and techniques for the reattachment of tooth fragments.
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.
室温蠕变对裂纹扩展产生延滞的原因主要是裂纹闭合，同时裂尖钝化、裂纹偏折及形变诱发马氏体的形成也会起到一定的作用。
It turns out that crack closure is the main reason for retardation, and crack tip blunting, crack deflection and strain-induced martensite would reinforce it.
试验证明，在普通的水泥砂浆中加入一定量的纤维能显著提高砂浆的抗裂抗渗，降低砂浆收缩率，提高抗压抗折强度等。
The test manifests adding a certain content of fiber in the mortar can obviously improve the tear and compression resistance, antipenetration and shrinkage.
在桥面铺装层混凝土中掺用聚丙烯纤维能够增强其抗拉、抗折、抗渗、抗冲击能力，并起到阻裂增韧的作用。
The use of polypropylene fiber in concrete of the bridge deck paving can improve its tensile strength, bending strength, permeability strength, impact ductility, cracking resistance and toughness.
在桥面铺装层混凝土中掺用聚丙烯纤维能够增强其抗拉、抗折、抗渗、抗冲击能力，并起到阻裂增韧的作用。
The use of polypropylene fiber in concrete of the bridge deck paving can improve its tensile strength, bending strength, permeability strength, impact ductility, cracking resistance and toughness.
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