Int J Esthet Dent. 2024 Aug 2;19(3):212-225.
Digital technologies are gradually gaining ground in dentistry. In particular, taking impressions with intraoral scanners is becoming routine; however, even this must often be preceded by the use of retraction cords. This article presents an innovative technique to record digital impressions of natural tooth abutments using interim restorations relined with impression material instead of retraction cords. In the laboratory, using computer-aided design, the technician can segment the internal surface of the interim restoration and use it to replace the abutment of the intraoral scan, thus obtaining an accurate coping that yields more detailed information about the supragingival and intrasulcular surface of the preparation.
数字技术在牙科领域逐渐得到广泛应用。特别是，使用口腔内扫描仪进行印模制取已经成为常规操作；然而，在此之前，通常还需要使用橡皮障。本文提出了一种创新技术，即在制取天然牙基牙的数字化印模时，使用衬有印模材料的临时修复体替代橡皮障。在实验室中，技术人员可以使用计算机辅助设计对临时修复体的内表面进行分割，并将其用于替代口腔内扫描的基牙，从而获得一个准确的修复体，该修复体可以提供更多关于预备体龈上和龈下表面的详细信息。
