Abstract:
A method is proposed for creating a virtual articulator for a jaw and the associated dentition having the following steps: image a virtual model of the teeth of the maxilla (140); image a virtual model of the teeth of the mandible (130); buccal imaging of the position and orientation of the teeth (130, 140) of the maxilla and mandible in the closed-bite position; buccal imaging of the position and orientation of the teeth (130, 140) of the maxilla and mandible in a slightly open position; computational determination of the position of the condylar articulation axis (150) relative to the teeth (130, 140) of the mandible and/or maxilla from the imaged positions and orientations; and a virtual articulator can thereby be created without having to possess special knowledge, e.g. of the dimensions of a specific mechanical articulator or any adapter elements, or their arrangement.
Abstract:
The invention relates to a window system for an intraoral scanner. Said window system comprises an optical element having a thermal conductivity of more than 1 W m−1 K−1. A window, which comprises a pane made for example of a plastic, glass, or corundum, is detachably disposed on the optical element at an average distance of less than 1 mm. At least one heat source is also connected to the optical element. The invention further relates to an intraoral scanner. Said intraoral scanner comprises the window system. The optical element and the at least one heat source are connected to the intraoral scanner. The window is disposed in a cover. Said cover can be disposed on the intraoral scanner such that the window has an average distance of less than 1 mm from the optical element.
Abstract:
A method is proposed for creating a virtual articulator for a jaw and the associated dentition having the following steps: image a virtual model of the teeth of the maxilla (140); image a virtual model of the teeth of the mandible (130); buccal imaging of the position and orientation of the teeth (130, 140) of the maxilla and mandible in the closed-bite position; buccal imaging of the position and orientation of the teeth (130, 140) of the maxilla and mandible in a slightly open position; computational determination of the position of the condylar articulation axis (150) relative to the teeth (130, 140) of the mandible and/or maxilla from the imaged positions and orientations; and a virtual articulator can thereby be created without having to possess special knowledge, e.g. of the dimensions of a specific mechanical articulator or any adapter elements, or their arrangement.