Objective: To determine whether magnetic attachments can protect the abutment tooth from the aspect of the mechanics analysis. 目的:从力学角度研究磁性附着体能否对基牙起到保护作用。
Objective: This article is to investigate the effects of different clasp designs of Kennedy class ⅱ RPD on the displacement of alveolar bone around the abutment tooth. 目的:比较下颌肯氏Ⅱ类可摘局部义齿的不同卡环对基牙牙槽骨产生作用的差异。
AIM: To improve the aesthetics and biocompatibility of metal-ceramic restoration by using the abutment tooth of metal-ceramic restoration fabricated with ceramic margin. 前言:目的:采用瓷边缘设计与制作金-瓷修复体的基牙,以提高金-瓷修复体的美观性及生物相容性。
Methods Casting process was adopted for the preparation of the clasp, which was fixed at the points on the mesial and distal surfaces of the abutment tooth. 方法采用铸造法制作卡环,固位点在基牙的近远中面,与基牙呈点状接触。
Periodontitis was mainly in the abutment teeth and single tooth. 牙龈炎症主要表现在基牙和独立牙。
AIM: To investigate the repairing effect and clinical significance of using the residual root for fixed bridge abutment tooth. 目的:探讨残根作为固定桥基牙的修复效果和临床意义。
Results ① The maximal stress value of the implant abutment was higher than the maximal stress value of the nature tooth for the rigid connector of fixed partial denture; 结果①固定连接式固定义齿的种植体基牙应力峰值高于天然牙;
The tensile stress distributions on the crown and residual dentin under three kinds of abutment which were a natural tooth, a Co Cr cast core and a composite resin core were analyzed. 分析在天然齿基牙、钴铬合金基牙及复合树脂基牙情况下,铸造玻璃陶瓷全冠的瓷层内及残余牙本质的应力分布情况。
Results The method and volume of the abutment tooth preparation, the choice of indication and color-matc hing are relative with the failure of the porcelain fused-metal crown bridge prosthesis? 结果:基牙的制备方式、制备量、适应症的选择以及比色与拷瓷冠桥修复体失败有关。
Clinical study on abutment dental Plague index, bleeding gum furrow Index, gum index, depth of periodontal pocket and tooth decay rate of removable partial dental prosthesis 可摘局部义齿基牙菌斑指数、龈沟出血指数、牙龈指数、牙周袋深度及龋坏情况的临床研究
AIM: To evaluate the precision of the three-dimensional ( 3D) laser scanner for scanning abutment tooth and reconstructing its model so as to offer some evidence for its application in CAD/ CAM of oral prosthesis. 目的:检验三维激光扫描仪扫描基牙预备体的重复性与准确性,并为其应用于口腔修复体的计算机辅助设计与制作(CAD/CAM)提供科学依据。
CONCLUSION: Residual root being used for fixed-bridge abutment tooth may reduce healthy tooth being used in abutment tooth, and it can enlarge indications of repairing fixed-bridge. 结论:利用残根作为固定桥基牙,可以减少使用健康牙作基牙,并能扩大固定桥修复的适应证。
Conclusion Gingival porcelain can be applied as a good substitute for the atrophic gingival tissue of the abutment and the defective gingival tissue which is the result of the severe atrophy of the alveolar bones after the tooth extraction, and with a satisfactory aesthetic repair effect. 结论应用牙龈瓷能较好地模拟退缩的基牙牙龈组织和拔牙后牙槽骨严重吸收所致牙龈组织缺损,获得较为满意的美学修复效果。
Results: Posterior palatal bar maximized the load on abutment tooth. Anterior palatal plate with posterior palatal bar had greatest influence on alveolar mucosa. 结果:后腭杆设计的义齿使基牙受力最大,前腭板加后腭杆设计对缺牙区牙槽黏膜影响最大。
The modified RPI clasp could provide adequate retention with the minimum undercut of the most distal part of abutment tooth and gain good esthetical effect. 改良RPI卡环的I杆固位尖端只需进入基牙颊面最远中的较小倒凹则可获得足够的固位,而且更美观。
Analysis of the Movement of Long Axis and the Distribution of Principal Stress in Abutment Tooth Retained by Conical Telescope 不同材料套筒冠基牙长轴位移及应力分析
Photoelastic Stress Analysis of the Effect of Various Clasps on Abutment Tooth 不同类型卡环对基牙受力影响的光弹应力分析
CONCLUSION: 3D laser scanner is precise and reliable enough for reconstructing the abutment tooth model fit for the clinical application. 结论:激光扫描仪可靠性强、可重复性高、能准确地获得牙预备体的三维数据,可满足临床的要求。
Precision of abutment tooth model reconstructed by 3D laser scanner 三维激光扫描并重建基牙预备体的精确度分析
Through analyzing effect of friction of tooth surface on reactive force of gear support abutment, this article shows that friction of tooth surface is a factor that causes forced vibration of gear support abutment, which is not ignored. 分析了齿面摩擦力对齿轮支座反力的影响。表明齿面摩擦力是影响齿轮支座强迫振动不容忽视的一个因素。
Clinical observation on residual root being used for fixed-bridge abutment tooth 利用残根作为固定桥基牙的临床观察
Stress analysis of periodontal membrane of fixed abutment tooth with different thickness 固定桥基牙牙周膜厚度不同时牙周膜内的应力分析