retention pin

英 [rɪˈtenʃn pɪn]

美 [rɪˈtenʃn pɪn]

止动销，定位销

Application of the Screw Self-threading Retention Pin and Light-cure Composite Resin in the Restoratio of Injured Anterior Permanent Teeth
螺纹钉固位光固化复合树脂在外伤性恒前牙修复中的应用
Conclusions: If the direction of the retention pin is paralled to the teeth axis, the stronger the shearing force, the less the moment of a rotation force.
结论：固位钉的方向与牙体长轴一致时，剪切力较大，旋转力矩最小有利固位。
Clinical results on retention pin of light-curing resin repair incisal edge defect of incisal angle
光固化树脂固位钉修复切角切缘缺损疗效观察
Whereas the remaining 12 samples, such as the retention pin and pivot pin, showed obvious artifacts.
牙用固位钉、椿钉等12件试样有严重伪影。
Biotransport kinetics of distribution, retention and exertion of Pin in rats is reported in this paper.
研究了钷在大鼠体内分布、滞留与排泄的动力学。
As for crown preparation with pin hole retention form, stress distribution on all the three models is almost consistent. Unlike the crown preparation, there is a stress concentration region at the bottom of pin hole crown preparation.
不同深度钉洞固位形全冠预备体模型的应力分布情况基本一致，与全冠预备体模型不同，钉洞底部有应力集中区域。