Standlee J P, Caputo A A
Section of Fixed Prosthodontics, School of Dentistry, University of California at Los Angeles.
J Prosthet Dent. 1993 Nov;70(5):403-5. doi: 10.1016/0022-3913(93)90074-x.
This study compared the retentive ability of endodontic dowels cemented with a resin when the surfaces of the dowels were varied. Dowels of standardized material, shape, length, and diameter were cemented with an unfilled Bis-GMA resin. Four dowel surface configurations were tested: transverse serrated, crosshatched, threaded, and longitudinal spirals. The results indicated that the dowel surface design can significantly influence the retention of a resin-cemented dowel. Dowels with transverse serrations or crosshatching were retained better than dowels with longitudinal spirals or threads.
本研究比较了在桩钉表面不同时，用树脂粘结的根管桩钉的固位能力。使用标准化材料、形状、长度和直径的桩钉，并用未填充的双酚A缩水甘油醚树脂进行粘结。测试了四种桩钉表面结构：横向锯齿状、交叉状、螺纹状和纵向螺旋状。结果表明，桩钉表面设计可显著影响树脂粘结桩钉的固位。具有横向锯齿或交叉状的桩钉比具有纵向螺旋或螺纹的桩钉固位更好。
