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- 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 Fifty two fractured crown root posterior molar of 50 patients were treatd by RCT, bonding, flapping and HA hone graft. 方法选择50例患者的52颗后牙冠根纵折伴牙周脓肿的患牙进行完整拔除、牙槽窝修整、患牙体外根管治疗、黏接再植、牙周翻瓣植骨术。
- 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)；
- 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。
- The crown of St Wenceslas was in prague cathedral. 圣文萨斯雷的皇冠保存在布拉格大教堂。
- The crown was beset with diamonds and jewels. 皇冠上镶嵌着钻石和珠宝。
- Clinical Analysis of 47 Cases with Vertical Root Crown Fracture. 47例冠根纵折的临床分析。
- 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。
- A major has a crown on the shoulder of his uniform. 一名少校在制服的肩部有个王冠形的纹章。
- Prince Charles is the legal heir of the crown. 查尔斯王子是王位的合法继承人。
- That ring is beans compared with the crown jewels. 与皇冠上的宝石相比那枚戒指根本不值什么钱。
- She laid claim to her father's crown. 她根据权利要求继承父亲的王位。
- The part of a tooth between the crown and the root. 牙颈在牙冠和牙根之间的部位
- 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。
