| 摘要 |
<p>A system for making anatomically correct and aesthetically pleasing dental restorations, including a modelling structure for fashioning a custom-made impression coping and a method of using the model to form said impression coping. A healing abutment used in second stage surgery to form an opening in the gingiva of a dental patient is attached to an implant analog within the model. Impression material is poured into the modelling receptacle around the healing abutment so as to form a model of the patient's gingival layer, including a cavity in the model corresponding to the opening in the patient's gingival layer. A narrow coping shaft is attached to the implant analog within the modelling receptacle, and a modelling material is poured into the cavity and allowed to harden around the narrow coping shaft, thus forming an impression coping with a transmucosal section replicating the size and shape of the healing abutment. The impression coping may thereafter be connected to a dental implant in the patient's jawbone (after removal of the healing abutment) so that an impression may be taken in the usual manner to be used in making a stone model of the surgery site, which in turn may be used in fashioning an artificial tooth.</p> |
