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- 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 pathogenic factors of vertical root fractures (VRFs). 目的分析牙根纵裂的致病因素。
- 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。
- 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。
- 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。
- Methods of soil auger and pot experiment were used to research vertical root distributions and drought resistance of main planting tree species in the Weibei loess plateau. 采用土钻法和盆栽试验研究了渭北地区主要造林树种的垂直根系分布特征及其抗旱性。
- All teeth had periodontitis and occlusal traumatism.Conclusion Occlusal traumatism was the main causes of vertical root fracture.X-ray examination was helpful to diagnosis.Pre... 结论咬合创伤是牙根纵裂的主要原因,X线检查有助诊断,牙根纵裂缺乏有效的治疗方法,应以预防为主。
- Results: X-ray diagnosis showed translucency of alveolar bone around some molars with vertical root fracture.Decrease of alveolar bone height or wedge shape absorption was found in diseased region. 结果:X线显示牙根纵裂的牙齿,个别根周出现牙槽骨破坏吸收性阴影,病变部位牙槽骨高度降低或呈楔形吸收,根管腔增宽或出现明显的根纵裂片移位,牙齿向病变方向倾斜。
- The vertical line meets the horizontal one here. 垂直线与水平线在此相交。
- 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。
- 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
- 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。
- A vertical or nearly vertical line or plane. 垂直线，垂直面垂直或近似垂直的线或平面
- Idleness is the root of all evil. 懒惰乃万恶之源。
- At right angles to a vertical line. 横的与垂直线成90度角的
