Dental implant assembly
AssigneeAstra Tech AB
InventorsJohan Holmstrom, Per Andersin, Daniel Magnusson
Life of this patent
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Abstract
The present invention relates to a dental implant assembly, comprising a fixture for insertion into a jawbone which is provided with a first thread with a first thread start, and a dental component which is not axially symmetrical and which is provided at its apical end with a second thread with a second thread start having a rotational position which is known in relation to the asymmetrical shape of the dental component for engagement with the first thread.
Claims27
A dental implant assembly, comprising
- a fixture for insertion into a jawbone which is provided with a first thread having a first thread start, and
- an axially asymmetrical dental component selected from the group consisting of an abutment, an abutment replica, a driver, a healing cap, cover screw, and an impression pick-up element, the dental component being provided at its apical end with a second thread with a second thread start having a rotational position which is known in relation to the asymmetrical shape of the dental component for engagement with the first thread,
- wherein the fixture is provided with a distinguishable fixture index which has a known rotational position in relation to the first thread start,
- wherein, when the fixture has been inserted into the jawbone and the dental component has been fully installed therein, the rotational orientation of the fixture index in relation to the surrounding anatomy determines the rotational orientation of the asymmetrical shape of the dental component in relation to the surrounding anatomy.
A dental implant assembly, comprising
- a fixture for insertion into a jawbone, which is provided with an engaging portion having a first thread with a first thread start having a rotational position which is known in relation to the engaging portion, and
- an installation device, which is provided at an apical end with a first engagement portion which is adapted to mesh in a pre-defined rotational orientation with said engaging portion of the fixture during installation thereof, the installation device further comprising a distinguishable installation device index having a known rotational position to the first engagement portion, wherein said distinguishable installation device index is visible when said first engagement portion of the installation device is meshed with said engaging portion of the fixture.
An axially asymmetrical dental component selected from the group consisting of an abutment, an abutment replica, a healing cap and an impression pick-up element, the dental component to be installed in a fixture which is installed in or is to be installed in a jawbone of a patient, said fixture being provided with a first thread having a first thread start, wherein the first thread start has a known rotational position in relation to a distinguishable fixture index,
- the dental component being provided at an apical end with a second thread with a second thread start having a rotational position which is known in relation to the asymmetrical shape of the dental component, for engagement with the first thread, the position of the second thread start being adapted to the position of the first thread start such that prior to installation of the dental component in the fixture the rotational orientation between the asymmetrical shape of the dental component and the fixture index after final installation is known.
A method for manufacturing an axially asymmetrical dental component selected from the group consisting of an abutment, an abutment replica, a healing cap and an impression pick-up element, which is to be installed in a fixture which is installed in or is to be installed in a jawbone of a patient, said fixture being provided with a first thread with a first thread start, the method comprising the steps of:
- providing the dental component at an apical end with a second thread with a second thread start having a rotational position which is known in relation to the asymmetrical shape of the dental component, for engagement with the first thread, and
- adapting the second thread start to the position of the first thread start such that a desired rotational orientation between the asymmetrical shape of the dental component and the fixture after final installation is achieved.
A method for manufacturing an axially asymmetrical dental component, such as an abutment, an abutment replica, a healing cap or an impression pick-up element, which is to be installed in a fixture which is installed in a jawbone of a patient, said fixture being provided with an engaging portion having a first thread with a first thread start, the method comprising the steps of:
- observing the rotational position of said first thread start by using an observation component which is installed in said fixture when said fixture has been installed in the jawbone of the patient, said observation component being provided at an apical end with an engagement portion which is adapted to mesh in a pre-defined rotational orientation with said engaging portion of the fixture, the observation component further comprising a distinguishable observation component index having a known rotational position in relation to the engagement portion,
- determining a desired rotational orientation of said asymmetrical shape of the dental component in relation to the fixture when fully installed therein,
- selecting the rotational position of the second thread start of the dental component corresponding to the desired rotational orientation of said asymmetrical shape of the dental component in relation to the fixture,
- providing the dental component at an apical end with a second thread with a second thread start having the selected rotational position in relation to said asymmetrical shape of the dental component.
A dental fixture for insertion into a jawbone, which is provided with a first thread having a first thread start having a rotational position, wherein the fixture is provided with a distinguishable fixture index which has a known rotational position in relation to the first thread start.
Dependencies are inferred from the claim text.