| 摘要 |
SUMMARY OF THE INVENTION. An intra-radicular post is described for rebuilding of teeth, with treatment of passages, comprised of one apical portion, a body adjacent to the apical portion, and one head adjacent to the body; characterized because the body is frusto-conical and tapered in such a way that its diameter is greater at the side proximal to the head and lower at the side proximal to the apical portion; apical portion comprises cylindrical segments with a flat end; and the head portion comprises conical segments having at least one flat lateral face; the post having thus improved insertion and retention properties.
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