Abstract: A registration and identification tool (1) for an instrument (100), comprising a body (2), a marker member (3) which is optically detectable and provided on the body (2), and a recess (4) in the body (2) which extends from an outer surface of the body (2) into the inside of the body (2), thereby defining an extension direction of the recess (4), wherein the recess (4) has a shape such that a lateral extension of the recess (4) decreases in the direction from the outer surface of the body (2) towards the inside of the body (2).

Abstract: The invention relates to a navigation system for dental and cranio-maxillofacial surgery, comprising a surgical handpiece (2), an imaging unit (4) which is movably attached to the surgical handpiece (2), and a marker member (6; 44, 46) which is attachable to a cranial bone, a facial bone (26), a tooth or teeth of a patient. The marker member (6; 44, 46) comprises a plurality of marker elements (8, 10; 46) which are detectable by the imaging unit (4). Further, the invention relates to a positioning tool (40) for use with the navigation system, wherein the positioning tool (40) is configured for positioning the marker member (44, 46) on a patient's cranial bone, facial bone (26), tooth or teeth and comprises a die element (42) and the marker member (44, 46).

Abstract: A registration and identification tool (1) for an instrument (100), comprising a body (2), a marker member (3) which is optically detectable and provided on the body (2), and a recess (4) in the body (2) which extends from an outer surface of the body (2) into the inside of the body (2), thereby defining an extension direction of the recess (4), wherein the recess (4) has a shape such that a lateral extension of the recess (4) decreases in the direction from the outer surface of the body (2) towards the inside of the body (2).

Abstract: The invention relates to a navigation system for dental and cranio-maxillofacial surgery, comprising a surgical handpiece (2), an imaging unit (4) which is movably attached to the surgical handpiece (2), and a marker member (6; 44, 46) which is attachable to a cranial bone, a facial bone (26), a tooth or teeth of a patient. The marker member (6; 44, 46) comprises a plurality of marker elements (8, 10; 46) which are detectable by the imaging unit (4). Further, the invention relates to a positioning tool (40) for use with the navigation system, wherein the positioning tool (40) is configured for positioning the marker member (44, 46) on a patient's cranial bone, facial bone (26), tooth or teeth and comprises a die element (42) and the marker member (44, 46).

Abstract: In a training and practice apparatus (1) for simulating and practising clinical dental processes, with a model bust (6) which has a chest part, a neck (16) and a head (7) and is swivel-mounted on a carrier (4), the head (7) is mounted on a head carrier by means of a joint (17) and can thereby be swivelled into different working positions and fixed in the adopted swivel position, the joint (17) is arranged in the neck (16), the neck (16) has an engagement recess (28) opening approximately coaxially at its bottom end and the head carrier is a bearing rod, engaging in the engagement recess, on which the joint (17) is arranged and which is mounted in the chest part.

Abstract: In a training and practice apparatus (1) for simulating and practicing clinical dental processes and for carrying out technical dental work, with a liquid extraction device (17) and a solids extraction device (14), a common vacuum source (25) is provided for both extraction devices (14, 17), with a suction line section (26) which branches at a branch (27) with two suction line branches (28, 29) to the extraction devices (14, 17), a change-over device (37) being arranged in the area of the branch (27) to open the one suction line branch and simultaneously close the other suction line branch (28, 29).

Abstract: A combined teaching and practicing apparatus. The apparatus is adapted for an optimized simulation and practice in dental-clinical work or operating procedures, as well as also being adapted for purely dental-technical work and which, in addition thereto, ensures that the apparatus is suited for right-handed as well as left-handed persons, and which affords for an optimum savings in space at uniformly maintained quality in the teaching or educating of the students.

Abstract: Dental teaching and practicing apparatus for the simulation and practice of dental-clinical working or operating procedures, such as are generally employed for the education and training of dentists and their assistants. The apparatus which represents or incorporates a patient-simulator can be individually positioned, especially with consideration being given to limited space or place conditions, whereby during non-use thereof the apparatus can be brought into a space-saving stored position, and can also be set up in such a manner that within an unchanged assembly, it is comfortable for either a right-handed or left-handed person.