| 摘要 |
<p>The radicular pivot head comprises a reversible retention means (4) and means for providing the automatic positioning of the head (3) within its housing (7) in the print of the dental paste, the reversible retention means and the automatic positioning means forming a single means (4) integrated in the head (3) of said radicular pivot; said means (4) consists in at least one uniform, circular, continuous groove (4) arranged in said head (3), the groove (4) being configured so as to penetrate in the dental paste where it forms a circular ring acting as a clips and locking the head (3) in the print. The invention may be applied particularly to odonto-stomatology. </p> |
