An auxiliary color selection body (10) is provided for target objects (34) such as dental objects, having a base body. The base body (12) has at least two inner walls (16, 18, 20) which extend transversely, in particular at right angles to each other, from which inner walls the base body extends outwardly as far as to the outer walls (22).

The base body (12) extends in two dimensions between the inner walls and the outer walls, with color selection areas (30) and reference features (32) arranged on the auxiliary color selection body. The auxiliary color selection body can be arranged in the vicinity of a target object (34) such that a straight line passing through two target object proximity points (38, 40, 42) on the inner walls sweeps across the target object.

A system having an auxiliary color selection body and a method for determining the colors of a dental object, i.e. the colors of tooth, residual limb or gingiva, is provided, wherein the auxiliary color selection body (10) has a substantially U-shaped or L-shaped or ring-shaped structure, on which at least one, preferably 4, reference features (18), for recognition of the auxiliary color selection body (10) is/are attached, and wherein, with respect to the reference features (18), a plurality of tooth, stump or gingiva color fields (30) are arranged on the color selection auxiliary body (10).

It is provided for an image of a tooth (16) to be taken with the auxiliary color selection body (10) being adjacent thereto on at least two sides and the tooth color is determined based of this image.

A system having an auxiliary color selection body and a method for determining the colors of a dental object, i.e. the colors of tooth, residual limb or gingiva, is provided, wherein the auxiliary color selection body (10) has a substantially U-shaped or L-shaped or ring-shaped structure, on which at least one, preferably 4, reference features (18), for recognition of the auxiliary color selection body (10) is/are attached, and wherein, with respect to the reference features (18), a plurality of tooth, stump or gingiva color fields (30) are arranged on the color selection auxiliary body (10).

It is provided for an image of a tooth (16) to be taken with the auxiliary color selection body (10) being adjacent thereto on at least two sides and the tooth color is determined based of this image.

A color or shade assessment system and a method of assessing color or shade of an object. The system may include a color or shade measurement device having a probe portion terminating at a distal end, a light emitter assembly, and a light receiver assembly. Furthermore, a spacer including a sleeve extending from a proximal end to a distal end and defining a passageway may be coupled to the probe portion. The spacer may be alterable between (1) a first state in which the spacer is detached from the probe portion; and (2) a second state in which at least a portion of the probe portion extends into the central passageway of the sleeve and the distal end of the probe portion is located between the proximal and distal ends of the sleeve.

A color or shade assessment system and a method of assessing color or shade of an object. The system may include a color or shade measurement device having a probe portion terminating at a distal end, a light emitter assembly, and a light receiver assembly. Furthermore, a spacer including a sleeve extending from a proximal end to a distal end and defining a passageway may be coupled to the probe portion. The spacer may be alterable between (1) a first state in which the spacer is detached from the probe portion; and (2) a second state in which at least a portion of the probe portion extends into the central passageway of the sleeve and the distal end of the probe portion is located between the proximal and distal ends of the sleeve.

A system, method and kit for coloring dental ceramics. The system, method, and kit resulting capable of adjusting the shade of a dental restoration milled from a colored zirconia porcelain block from one color value of the VITA shade guide to a different color value of the VITA shade guide.

The invention relates to a computer program for specifying a material color of a dental restoration for which the desired tooth color is entered as a target tooth color (56) by the user, said target tooth color being the tooth color of a neighboring tooth, wherein upon specification of the material color of the dental restoration starting from the target tooth color (56) the material color of the dental restoration material is changed based on parameters such as the color of a stump and/or an abutment, the layer thickness of the dental restoration, the type of the dental restoration as well as the processing technique, wherein the specification of the material color of the dental restoration is controlled by the computer program, and wherein, once a parameter is selected, the next parameter is offered automatically, wherein the selection is limited based on parameters which are dependent on one another, such as the layer thickness, the restoration type, that is to say the indication, and the material.

The invention relates to a method for constructing a restoration (1), in which a dental situation (3) is measured by means of a dental camera (2) and a 3D model (4) of the dental situation (3) is generated. In this case, a computer-assisted detection algorithm is applied to the 3D model (4) of the dental situation (3), wherein a type of restoration (17) and/or at least a tooth number (18) and/or a position of the restoration (1) to be inserted are automatically determined.

A system and method and system for providing preoperative patient intraoral scanning for diagnosis and preparation of a treatment plan utilizing the proposed system in advance of the crown surgery and intraoperative patient intraoral scanning for system assessment and verification for the method of treatment. More specifically, the proposed invention proposes a method and system of patient intraoral scanning to identify the best prefabricated crown for use for the patient and develop a plan for intraoral surface treatment for the identified prefabricated crown and automated crown inventory management.

A method for designing a dental component, specifically a restoration, a bite guard or an impression tray, comprising the steps of: measuring a dental situation; generating a 3D model of the dental situation; applying an artificial neural network for machine learning (convolutional neural network; CNN) to the 3D model of the dental situation and/or an initial 3D model of the dental component, and automatically generating a fully designed 3D model of the dental component, specifically the restoration, the bite guard or the impression tray.