| 摘要 |
The invention relates to a method for producing a three-dimensional model of at least a part of a jaw in order to produce a dental prosthesis, wherein a laboratory implant is arranged in a recess of the model, a cylindrical or conical recess being produced in the model according to the method, the laboratory implant being inserted into the recess in order to position the laboratory implant on the model, wherein the recess is produced with a single or multiple rotational symmetry about the longitudinal axis of the recess, and a laboratory implant is used that has the same rotational symmetry at least in certain areas and thus fits into the recess, or a counter thread mating with a thread on the lab implant is produced in the recess. The invention also relates to a model of a jaw for the production of a dental prosthesis, in particular to the conducting of such a method, the model comprising a recess for insertion of a laboratory implant, the recess being shaped cylindrically or conically and having a single or multiple rotational symmetry along the longitudinal axis, so that a laboratory implant with identical rotational symmetry, at least in certain sections, can be arranged in a rotationally fixed manner in the recess, or a counter-thread, preferably with a stop, is provided in the recess, said counter-thread mating with a thread on the laboratory implant, preferably with a stop, so that the laboratory implant can be arranged in a fixed position in the model. The invention further relates to a laboratory implant for the production of a dental prosthesis, in particular to the conducting of such a method, the laboratory implant comprising an area for insertion into a recess of a jaw model and a head part for mounting the dental prosthesis, the laboratory implant being cylindrical or conical, at least in certain sections, and having a single or multiple rotational symmetry about its longitudinal axis, so that the laboratory implant can be arranged in a rotationally fixed manner in a recess with a matching shape, or comprising an outside thread, preferably an external thread with a stop, so that the laboratory implant can be arranged in a fixed position in a recess having mating internal thread. Finally the invention also relates to a device for producing a model of a jaw for realizing such a method. |
| 主权项 |
1. A method for producing a three-dimensional model (20) of at least one partial region of a jaw for producing a dental prosthesis, in which a lab analog (11, 21) is arranged in a recess in the model (20), characterized in that
a cylindrical or conical recess is created in the model (20), into which the lab analog (11, 21) is inserted to position the lab analog (11, 21) on the model (20), the recess being created with a single-point or multi-point rotational symmetry about the longitudinal axis of the recess, and a lab analog (11, 21) is used, which has the same rotational symmetry in at least some regions and thus fits into the recess, or a mating thread (28), which fits with a thread (25) on the lab analog (11, 21) is created in the recess. |
