Gelb M M, Pascoe D F, Hirsch S M, Panno F V, Kaim J M
J Prosthet Dent. 1984 Feb;51(2):202-4. doi: 10.1016/0022-3913(84)90261-0.
This article indicates that the gingival opening of a two-surface cast restoration after cementation is minimized by the use of a preparation with proximal grooves.
本文指出,通过使用带有邻面沟的预备体,粘固后双面铸造修复体的龈向开口可减至最小。