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- Conclusion The causes of vertical root fracture in pulpless teeth arc complicated. 结论无髓牙牙根纵裂的病因复杂。
- Objective To investigate the cause of vertical root fracture in pulpless teeth, and advance the measures of prevention. 摘要目的探讨无髓牙牙根纵裂发生的原因并提出相应的预防措施。
- Methods The clinical data of 20 vertical root fracture in pulpless teeth (17 patients) were collected. 方法收集17例共20颗发生牙根纵裂无髓牙的临床诊治资料。
- Vertical root fracture were frequently found in front teeth (4/20) and premolars (5/20) among those with coronal integrity. 牙冠完整者发生牙根纵裂多见于前牙(4/20)和前磨牙(5/20)；
- Objective: To explore the relations between root canal design, post crown type and root fracture after postcrown restoration. 目的:探讨根管口设计和桩冠修复体类型与前牙桩冠修复后根折的发生的关系。
- Methods: The dental, periodontal, and X-ray of the teeth with vertical root fracture were studied in 63 cases of aged patients. 方法:对63例牙根纵裂的患者,通过临床检查、X线检查、进行咬合创伤的分析。
- Root fracture with single fracture line can often healed after simple treatment,while root fracture with mult-fracure lines was often extracted. 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。
- There was significant difference between the two posts in loosening of post(P <0.05),and no significant difference in root fracture resistance(P >0.05). 两种桩-核-冠修复方法在核冠钉松动方面存在显著差异(P<0.;05);在防止牙根折裂方面无显著差异(P<0
- Objective To study the pathogenic factors of vertical root fractures (VRFs). 目的分析牙根纵裂的致病因素。
- Objective To study the anatomical factors of vertical root fractures(VRFs)on vital pulp of maxillary first molar. 目的分析活髓下颌第一磨牙根纵裂的解剖学病因。
- It is vain to attempt to root out heresy by force. 试图用暴力消除异端邪说是徒劳的。
- Perhaps there is a fracture in the water pipe. 也许水管有裂缝了。
- The fracture of his left leg is very serious. 他的左腿骨折情况很严重。
- The fracture caused him intense pain. 骨折给他造成了剧烈的疼痛。
- The gardener tore up the plant, root and all. 园丁把园中的花草树木连根全挖了出来。
- The plant has not struck root yet. 那棵植物还没生根。
- Unhappiness is the root cause of his illness. 不开心是他生病的根源。
- Idleness is the root of all evil. 懒惰乃万恶之源。
- Application of root apex locator to diagnose vertical root fracture 根尖定位仪应用于牙根纵裂的临床诊断
- Experimental study of reattachment of incisal root fracture 前牙断根再接的实验研究
