Disclosed is a method for determining the geometrical relationship between a patient's dental structure and a reference feature on the head of the patient, the method including obtaining a first digital representation of a facebow including a fiducial marker, an adjustable pin member attached to the facebow and an attachment section of the facebow for placing the facebow in relation to the reference feature, the attachment section having a geometrical relationship with the fiducial marker; obtaining a second digital representation comprising a part of the patient's dental structure, a part of the pin member, and part of the facebow including the fiducial marker; obtaining information about the placement of the attachment section relative to the reference feature; and determining the geometrical relationship between the patient's dental structure and the reference feature based on the first and second digital representations and the placement of the attachment section.

The Modular system for the realization of orthodontic Gipsoteca models with the faithful tilting of the individual occlusal plane and mobile and fixed prostheses and other orthodontic aids such as bites or splints, comprises a first module consisting of a supporting device (1) and additional aids, such as bases, muffles, little frames, curved and flat plates, a base for the transfer of static relationships between the dental arches, the individual face bow and the injection piston, suitable to make up, in combination with the device (1), additional modules. The present invention allows to facilitate different dental, processing techniques and reduce processing times and possible errors caused by the realization and the squaring of the artifact.

Provided is a dental model in which a model tooth having a root portion similar to an actual tooth is attachable to and detachable from a gum portion, and an articulator. A dental model 1 according to the present disclosure includes: a gum portion 12 in which an insertion hole 20 to which a model tooth 50 is to be inserted is provided; and a lid portion 18 provided on an oral side of the insertion hole 20 in the gum portion 12, in which the lid portion 18 constitutes a part of the gum portion 12 in a closed state, and provides a recess portion 18b that is continuous from the insertion hole 20 and exposes at least a part of a root portion of the model tooth in an opened state, and in which the lid portion 18 is configured to be opened and closed relative to another portion of the gum portion 12.

Provided is a dental model in which a model tooth having a root portion similar to an actual tooth is attachable to and detachable from a gum portion, and an articulator. A dental model 1 according to the present disclosure includes: a gum portion 12 in which an insertion hole 20 to which a model tooth 50 is to be inserted is provided; and a lid portion 18 provided on an oral side of the insertion hole 20 in the gum portion 12, in which the lid portion 18 constitutes a part of the gum portion 12 in a closed state, and provides a recess portion 18b that is continuous from the insertion hole 20 and exposes at least a part of a root portion of the model tooth in an opened state, and in which the lid portion 18 is configured to be opened and closed relative to another portion of the gum portion 12.

A method for decreasing dental hypersensitivity, including sizing a plurality of non-functionalized microbeads to be between 0.01 μm to 3 μm in diameter, suspending the plurality of non-functionalized microbeads in a fluid matrix to define a dental delivery composition, introducing the dental delivery composition into an oral cavity, introducing respective non-functionalized microbeads into a dental tubule, adhering respective functionalized microbeads each other and to the dental tubule to define an aggregate, and occluding the dental tubule with the aggregate.

A method for decreasing dental hypersensitivity, including sizing a plurality of non-functionalized microbeads to be between 0.01 μm to 3 μm in diameter, suspending the plurality of non-functionalized microbeads in a fluid matrix to define a dental delivery composition, introducing the dental delivery composition into an oral cavity, introducing respective non-functionalized microbeads into a dental tubule, adhering respective functionalized microbeads each other and to the dental tubule to define an aggregate, and occluding the dental tubule with the aggregate.

A method for monitoring the shape of teeth including: producing a three-dimensional digital model of at least one portion of an arch of the patient or “initial reference model”; acquiring at least one two-dimensional image of the arches, referred to as “updated image”, under actual acquisition conditions; analysing each updated image and producing an updated map relating to a piece of discriminating information; optionally determining rough virtual acquisition conditions that approximate the actual acquisition conditions; searching each updated image for a final reference model corresponding to the shape of the teeth, and optionally to the positioning of the teeth, during the acquisition of the updated image; and comparing the shapes of the initial reference model and of the reference model obtained at the end of the preceding steps, referred to as “final reference model”, in order to determine the deformation and/or the movement of teeth between steps a) and b).

An object of the present invention is to provide an implant structure assuring that substances accelerating breeding of bacteria are hard to be induced. The implant structure comprises: an artificial tooth root including an artificial tooth root main body having a distal end portion and a proximal end portion and a thread being formed at least on the distal end portion side and an induction portion for inducing a soft tissue provided on an outer periphery of the proximal end portion of the artificial tooth root main body; and a support base having a covering portion at the proximal end portion side of the support base covering the whole surface of the proximal end portion side of the induction portion, wherein the support base is provided with a step portion along its outer periphery from the covering portion toward a distal end side of the support base.

Disclosed is a method for determining the relative arrangement of patient's jaws in a bite position when the patient's occlusion is not defined by natural teeth alone, where the method comprises a step of obtaining a digital 3D representation comprising both surface data relating to dental tissue in one of the patient's jaws and surface data relating to a scan appliance arranged in relation to the jaw, where the scan appliance is configured for at least partly defining the patient's occlusion.

Disclosed is a method for determining the relative arrangement of patient's jaws in a bite position when the patient's occlusion is not defined by natural teeth alone, where the method comprises a step of obtaining a digital 3D representation comprising both surface data relating to dental tissue in one of the patient's jaws and surface data relating to a scan appliance arranged in relation to the jaw, where the scan appliance is configured for at least partly defining the patient's occlusion.