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首页> 外文期刊>Journal of Veterinary Dentistry >The Influence of Axial Grooves on Dislodgment Resistance of Prosthetic Metal Crowns in Maxillary Fourth Premolar Teeth of Dogs
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The Influence of Axial Grooves on Dislodgment Resistance of Prosthetic Metal Crowns in Maxillary Fourth Premolar Teeth of Dogs

机译：轴向沟槽对狗颌骨第四磨牙牙颌牙冠脱位阻力的影响

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摘要

The reported failure rate for full veneer crowns in dogs is suboptimal, particularly in teeth with naturally poor retentive features such as the maxillary fourth premolar tooth of dogs. Although the data regarding crown retention on the maxillary fourth premolar in dogs are limited, there are data that suggest the crown failure rate could be similar to that of the canine tooth. Thus, methods to improve retentive features of the preparation design should be pursued. The objective of the present study is to quantify the influence of axial grooves on the dislodgment resistance of full veneer metal crowns in dogs. Crown dislodgment testing was performed on cast alloy dies of the maxillary fourth premolar tooth with unfavorable retentive features prepared with and without axial grooves, to quantify the difference in force required to dislodge a cemented full veneer crown. The force required to cause crown dislodgment was recorded for each crown. Statistical analysis revealed a significant increase ( P < .001) in the force required for crown dislodgment in teeth prepared with axial grooves compared to those prepared without axial grooves.
机译：报告的狗中的完整单板冠的失败率是次优，特别是在具有自然差的保留特征的牙齿中，例如狗的上颌第四掠夺牙齿。虽然有关狗的上颌第四珠粒上上颌第四母乳的数据有限，但有些数据表明皇冠失效率可能与犬齿牙齿相似。因此，应追求改善制备设计的保持性特征的方法。本研究的目的是量化轴向沟槽对犬全胶合金属冠的脱模电阻的影响。对冠状移位测试进行了上颌第四磨牙齿的铸造合金模具，具有不利的保持特征，不带轴向凹槽，以量化脱离垫地的全贴面冠所需的力差异。为每个官方记录引起冠状脱位所需的力。统计学分析显示，与在没有轴向槽的制备的那些相比，用轴向槽制备的齿壳所需的力显着增加（ p <.001）。

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  • 来源
    《Journal of Veterinary Dentistry》 |2016年第3期|共6页
  • 作者

    Stephanie Goldschmidt; Caitlyn J. Collins; Scott Hetzel; Heidi-Lynn Ploeg; Jason W. Soukup;

  • 作者单位

    Dentistry and Oral Surgery Department of Surgical Sciences School of Veterinary Medicine University of Wisconsin–Madison Madison WI USA;

    Bone and Joint Biomechanics Lab Department of Mechanical Engineering College of Engineering University of Wisconsin–Madison Madison WI USA;

    Department of Biostatistics and Medical Informatics School of Medicine and Public Health University of Wisconsin–Madison Madison WI USA;

    Bone and Joint Biomechanics Lab Department of Mechanical Engineering College of Engineering University of Wisconsin–Madison Madison WI USA;

    Dentistry and Oral Surgery Department of Surgical Sciences School of Veterinary Medicine University of Wisconsin–Madison Madison WI USA;

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  • 正文语种 eng
  • 中图分类 动物医学（兽医学）;
  • 关键词

    crowns; retention; axial grooves; maxillary fourth premolar tooth;

    机译：冠;保留;轴向槽;上颌第四珠珠;

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