Alexander S A
Oral Surg Oral Med Oral Pathol. 1983 Sep;56(3):321-3. doi: 10.1016/0030-4220(83)90016-6.
The placement of a retrograde filling is designed to seal the apex of a tooth when conventional procedures have either failed or cannot be performed. This case report describes the mechanical failure of this procedure, as well as the expulsion of the filling material from the oral cavity.
逆行充填的目的是在传统治疗方法失败或无法实施时封闭牙根尖。本病例报告描述了该治疗方法的机械性失败，以及充填材料从口腔排出的情况。
