| 摘要 |
The device for taking a dental impression is of the type comprising an impression-holder (1), the characteristic feature being that its handle (2) contains a reservoir intended to receive the impression material and to inject it by means of a piston (4) via the intrados of the apparatus (5) onto the mucco-dental surfaces. According to the invention, this system makes it possible to improve the precision and the definition of the details of the dental impressions by placing under pressure the impression material, which runs into all the details of supragingival and subgingival preparations. <IMAGE> |
