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crown defects
相关语句
  牙冠缺损
     Study on Restorative Effect of the Parallel-sided Post System on the Crown Defects of Teeth
     平行柱状根管桩修复牙冠缺损的临床研究
短句来源
     Method:[WTBZ]184 anterior teeth of 129 patients with crown defects were chosen and randomly divided into three groups,and were respectively restored with parapost system,tapered cast post,and pre-fabricated thread post.
     方法:自2000年8月~2005年8月,选取门诊129名前牙冠缺损患者,共184颗患牙,分别采用平行柱状根管桩、铸造锥形根管桩、锥形螺纹桩进行修复治疗。
短句来源
  “crown defects”译为未确定词的双语例句
     Methods: Forty-nine teeth with massive dental crown defects from thirty-four children were given casting alloy or PFM inlay-crown restorative treatment. The patients were followed up for 1 to 3 years.
     方法:选取34例儿童患者49颗乳磨牙大面积牙体缺损患牙采用铸造及金属烤瓷进行嵌体冠修复,追踪观察1 ̄3年。
短句来源
  相似匹配句对
     On Software's Defects
     论软件缺陷
短句来源
     defects in means;
     有明显的方法缺陷 ;
短句来源
     Archimedes & Crown
     阿基米德与王冠
短句来源
     Results The defects in the crown and the roots in elderly caries patients cantreated.
     结果 全部356例老年龋病患者的568颗残根残冠全部进行保存治疗,五年有效率为93.8%。
短句来源
     Cast post-core-crown used in large defects of the molars
     铸造活动钉桩核冠修复磨牙残冠
短句来源
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  crown defects
Effect of different factors on the formation of "crown" defects in var ingots
      


Therapeutic effectiveness was observed on the restoration of the severe crown defect of the front teeth when treated with baked porcelain crown after one visit filling of the tooth root. The method was proved to be easy to practise. Of the 507 cases treated, the effectiveness rate was 92.70%. There was no statistical difference between those cases and other 254 cases that were treated by baked porcelain crown after routine cannel treatment. Discusions were made on the indication and contradictions....

Therapeutic effectiveness was observed on the restoration of the severe crown defect of the front teeth when treated with baked porcelain crown after one visit filling of the tooth root. The method was proved to be easy to practise. Of the 507 cases treated, the effectiveness rate was 92.70%. There was no statistical difference between those cases and other 254 cases that were treated by baked porcelain crown after routine cannel treatment. Discusions were made on the indication and contradictions.

对前牙牙冠严重缺损者采用一次性药物根管充填 ,制作桩核 ,即时备牙 ,取模、制作金属烤瓷冠 ,从而明显减少了患者就诊天数及时间 .通过 50 7颗牙临床观察 ,总有效率达 92 .70 % .与常规根充后作桩核制作烤瓷冠的 2 54颗牙作对比 ,无统计学差别 .分析探讨了烤瓷冠的临床操作要点 .

Objective This study was to investigate the clinical effects of two restorative protocols with custom made metal crowns for deciduous molar defects, take a better alternative for clinical use and improve clinical restorative efficacy by using a more effective protocol. Method Forty four teeth in 34 patients with massive dental crown defects were divided into two groups at random and restored with custom made metal crown by means of direct and indirect protocols, respectively. A two year follow...

Objective This study was to investigate the clinical effects of two restorative protocols with custom made metal crowns for deciduous molar defects, take a better alternative for clinical use and improve clinical restorative efficacy by using a more effective protocol. Method Forty four teeth in 34 patients with massive dental crown defects were divided into two groups at random and restored with custom made metal crown by means of direct and indirect protocols, respectively. A two year follow up was performed for each patient. Results In the group with direct protocol, the incidences of metal crown dislocation, metal crown damage, and gingivitis were 18.2%, 9.1%, and 13.6%, respectively; while in the group with indirect protocol, the incidences were 4.2%, 0%, and 4.2%, respectively. Conclusion The indirect restorative protocol may improve clinical restorative effects by decreasing the incidences of the metal crown dislocation, the crown perforation, and gingivitis.

目的 观察两种方法作乳磨牙金属成品冠修复的临床效果 ,探讨更佳修复方法 ,提高临床修复效果。方法 采用直接法、间接法对因乳磨牙牙体大部分缺损而就诊的 3 4例 ( 44颗患牙 )作金属成品冠的修复 ,并定期复查 ,观察 2年。结果 直接法修复的冠脱落率为 1 8.2 %、冠磨损率 9.1 %、龈炎患病率 1 3 .6% ;间接法修复则各为 4 .2 %、0 %和 4 .2 %。结论 间接法可减少乳磨牙成品冠的冠脱落、冠穿孔和牙龈炎的发生 ,临床修复效果有所提高。

Objective: To evaluate the relationship between crown defect types and crown fractures of root-canal-treated mandibular molars. Methods: 976 root-canal-mandibular molars were retrospectively observed if the teeth were fractured, occlusal (O), mesial-occlusal (MO), distal-occlusal (DO), mesial-occlusal-distal (MOD), three surface defects (TD) of crowns were 246, 296, 215, 123, 96, respectively. Results: The tooth fracture rate of O, MO, DO, MOD, TD groups were14.63%, 26.35%, 19.53%, 37.4%,...

Objective: To evaluate the relationship between crown defect types and crown fractures of root-canal-treated mandibular molars. Methods: 976 root-canal-mandibular molars were retrospectively observed if the teeth were fractured, occlusal (O), mesial-occlusal (MO), distal-occlusal (DO), mesial-occlusal-distal (MOD), three surface defects (TD) of crowns were 246, 296, 215, 123, 96, respectively. Results: The tooth fracture rate of O, MO, DO, MOD, TD groups were14.63%, 26.35%, 19.53%, 37.4%, 32.29%. The analysis of χ 2 showed the tooth fracture rate of MOD and TD groups were the highest, the fracture rate of O group was the lowest. Conclusion: Within the limitations of this study, root-canal-treated mandibular molars with three surface defects was suggested to place the restorations of occlusal coverage.

目的 :观察根管治疗后的下颌磨牙冠缺损类型与冠根折的关系。方法 :回顾观察根管治疗后的 976个下颌磨牙的冠根折发生情况 ,其中牙合面 (O)、近中牙合面 (MO)、远中牙合面 (DO)、近中 -牙合面 -远中 (MOD)及牙冠三面缺损(TD)的牙齿数量分别为 2 4 6、2 96、2 15、12 3、96个。结果 :5种缺损类型的下颌磨牙的冠根折发生率分别为 14 .6 3%、2 6 .35 %、19.5 3%、37.4 %、32 .2 9% ,经 χ2 检验分析 ,MOD和TD的冠根折断率最高 ,牙合面缺损的折断率最低。结论 :根管治疗的下颌磨牙冠缺损达牙冠三面者建议用覆盖牙尖的修复体修复 ,以保护牙体结构

 
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