An electric toothbrush includes a grip portion, a brush portion, and a joint arrangement for connecting the two portions. The joint arrangement has an upper cylinder portion and a lower cylinder portion, with an axis of the upper cylinder portion being inclined a predetermined angle with respect to an axis of the lower cylinder portion. The grip portion is connected to the lower cylinder portion and the brush portion is connected to the upper cylinder portion, so that the grip portion and the brush portion are inclined by the predetermined angle.

An electric toothbrush includes a grip portion, a brush portion, and a joint arrangement for connecting the two portions. The joint arrangement has an upper cylinder portion and a lower cylinder portion, with an axis of the upper cylinder portion being inclined a predetermined angle with respect to an axis of the lower cylinder portion. The grip portion is connected to the lower cylinder portion and the brush portion is connected to the upper cylinder portion, so that the grip portion and the brush portion are inclined by the predetermined angle.

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). The marker member (44, 46) comprises a deformable material (44), the deformable material (44) is releasably received in the die element (42) and the plurality of marker elements (46) are arranged on a surface of the deformable material (44) which faces the die element (42), The invention further relates to a navigation method for dental and craniomaxillofacial surgery using the navigation system and to a method of positioning a marker member (44, 46) on a patient's cranial bone, facial bone (26), tooth or teeth using the positioning tool (40).

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). The marker member (44, 46) comprises a deformable material (44), the deformable material (44) is releasably received in the die element (42) and the plurality of marker elements (46) are arranged on a surface of the deformable material (44) which faces the die element (42), The invention further relates to a navigation method for dental and craniomaxillofacial surgery using the navigation system and to a method of positioning a marker member (44, 46) on a patient's cranial bone, facial bone (26), tooth or teeth using the positioning tool (40).

A dual-ended triple tooled dental applicator apparatus, comprising a plurality of tools with interchangeable dental tool applicators. The dental apparatus further comprises an elongated handle having two distinct tools on both ends and being detachable and interchangeable. During procedures, the dentist can alternate between both ends of the apparatus and among three dental tool applicators. A set of overlapping and circumferential friction enhancement means, along and about the apparatus, facilitate safe and effective handling during procedures. The multi-functioned dental apparatus is comprised of a lightweight but rigid material (e.g., plastic), which allows the dentist to efficiently use the same tool for working with and applying different materials to a patient's teeth. Upon completion of a given procedure, the entire device may be readily disposable.

A dual-ended triple tooled dental applicator apparatus, comprising a plurality of tools with interchangeable dental tool applicators. The dental apparatus further comprises an elongated handle having two distinct tools on both ends and being detachable and interchangeable. During procedures, the dentist can alternate between both ends of the apparatus and among three dental tool applicators. A set of overlapping and circumferential friction enhancement means, along and about the apparatus, facilitate safe and effective handling during procedures. The multi-functioned dental apparatus is comprised of a lightweight but rigid material (e.g., plastic), which allows the dentist to efficiently use the same tool for working with and applying different materials to a patient's teeth. Upon completion of a given procedure, the entire device may be readily disposable.

The invention relates to an illuminating device (1) comprising a substrate (2), a non-transparent spacer (4) which is connected to the substrate (2) so as to be hermetically sealed, an opening in the spacer (4), opposite said substrate (2), and an illumination element (3) positioned beneath the spacer (4) and beneath the opening, which element is connected to the substrate (2) so as to be hermetically sealed, characterized in that the opening in the spacer (4) is closed, so as to be hermetically sealed, by an optical element (5) consisting of a glass material the volume of which comprises at least one luminophore and thus constitutes a luminescent composite glass material.

The invention relates to an illuminating device (1) comprising a substrate (2), a non-transparent spacer (4) which is connected to the substrate (2) so as to be hermetically sealed, an opening in the spacer (4), opposite said substrate (2), and an illumination element (3) positioned beneath the spacer (4) and beneath the opening, which element is connected to the substrate (2) so as to be hermetically sealed, characterized in that the opening in the spacer (4) is closed, so as to be hermetically sealed, by an optical element (5) consisting of a glass material the volume of which comprises at least one luminophore and thus constitutes a luminescent composite glass material.

Dental carving tools and methods utilizing a detachable blade are provided. An example dental carving tool includes at least a working portion with a detachable blade disposed at an angle offset from the longitudinal handle axis. The blade can include a planar portion and an additional either curved or flat surface, with the surface curving inwardly or outwardly from the orientation of the dental practitioner. The cutting edge can be curving or flat, with one or both edges sharpened.

Dental carving tools and methods utilizing a detachable blade are provided. An example dental carving tool includes at least a working portion with a detachable blade disposed at an angle offset from the longitudinal handle axis. The blade can include a planar portion and an additional either curved or flat surface, with the surface curving inwardly or outwardly from the orientation of the dental practitioner. The cutting edge can be curving or flat, with one or both edges sharpened.