Evans D B, Koeppen R G
Department of General Dentistry, Wilford Hall U.S. Air Force Medical Center, San Antonio, Tex.
J Prosthet Dent. 1992 Jul;68(1):6-11. doi: 10.1016/0022-3913(92)90275-f.
Bar attachments are easily fabricated and provide increased retention and support for overdentures. Nonparallel root abutments can preclude the routine use of bar attachments unless modifications are made in the design. This article reviews several existing techniques to successfully fabricate bar attachments in overdenture patients with nonparallel abutments. In addition, three alternative methods are presented for placing bar attachments on abutments with divergent roots.
杆附着体易于制作，可为覆盖义齿提供更强的固位力和支持。除非在设计上进行修改，否则非平行牙根基牙会妨碍杆附着体的常规使用。本文回顾了几种现有技术，用于在具有非平行基牙的覆盖义齿患者中成功制作杆附着体。此外，还介绍了三种在具有发散牙根的基牙上放置杆附着体的替代方法。
