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- dental root fracture 牙根折断
- 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。
- Objective: To analyze the relation ship between Streptococcus mutans, Actinomyces and dental root surface caries. 目的:分析变形链球菌和放线菌与根面龋的关系。
- Mehl A,Folwaczny M,Haffner C,Hickel R.Bactericidal effects of 2.94 microns Er:YAG-laser radiation in dental root canals[J].J Endod,1999 Jul.,25(7):490-3. 徐春蓉;甘伟国;张民众等.;脉冲YAG激光对小儿耳鼻咽喉常见病治疗效果及其作用机理的探讨[J]
- What reason is when coming up against dental root ministry every time, feeling the tooth is very acerbity? How should treat? 每次碰到牙齿根部时都感到牙齿很酸是什么原因?应该怎么治疗?
- 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。
- CONCLUSIONS: DPSCs may exist in both dental root and coronal pulp, and the density of DPSCs in the root pulp may be higher than the coronal pulp. 结论:牙稳干细胞可能存在于全部牙髓之中,在根髓中比冠髓中具有更高的密度。
- 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。
- Figure1 The performance of the X-ray is the destruction of the left mandible bone, and shows no dental root resorption, no bone line or periosteal reaction. 图1,患者术前曲面断层的表现,可见左下颌骨部分骨质破环,未见明显骨白线和牙根吸收、骨膜反应。
- 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。
- 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
- In addition, the rate of dental root fistula resolution was 34.8% in ITG and 15.4% in DTG (P<0.05), and that of swelling incidence was 5.6% in ITG and 6.8% in DTG (P>0.05), respectively. 肿胀发生率一次程为5.;6%25;多次程为6
- Methods:Primary dental root canal was simulated with silica gel tubes, one end sealed and the other end open. The tubes were filled Zinc-Oxide-Eugenol(ZOE), Ca(OH) 2 and iodoform respectively with sterile conditions. 方法 :以一端封闭 ,另一端开放的硅胶管模拟乳牙根管 ,无菌条件下分别充填氧化锌丁香油糊剂 ,氢氧化钙糊剂和碘仿糊剂。
- When a traditional method is used to repair residual dental root with horn-shaped orifice, this kind of dental root often has to be extracted since the success rate in clinic is very low. 根管口呈喇叭形的残根用传统桩核修复时,常由于剪力集中在颈部和根尖,使得根管口薄壁不能承受较大的压力,在临床上因修复成功率较低,只能将牙根拔除。
- Objective To study the pathogenic factors of vertical root fractures (VRFs). 目的分析牙根纵裂的致病因素。
- Dental root canal filling pluggers 牙科用根管充填器
- Dental root canal finger pluggers 牙科用根管指状充填器