A method for setting the axis of rotation between a virtual maxillary model and a virtual mandible model to a virtual hinge axis representing the axis of rotation of the mandibular condyles includes the steps of, obtaining at least one 2D photograph of the face of a patient comprising at least one facial feature, obtaining a virtual dental model comprising the virtual maxillary model and the virtual mandible model representing at least a part of the dental situation of the patient, aligning the virtual dental model with the at least one facial feature, determining the virtual hinge axis based on the at least one 2D photograph, and setting the axis of rotation to the virtual hinge axis.

An articulator lower tray is provided herein. The articulator lower tray as disclosed herein may include a tray body part, an abutment support protrusion parts, and a cover part. The tray body part may include abutment pin holes formed at an interval, the abutment support protrusion parts may be formed at either side of the abutment pin holes, and the cover part may be disposed to cover tops of the abutment pin holes located between the abutment support protrusion parts. The articulator lower tray may further include an abutment pin which may be inserted into one of the abutment pin holes through the cover part.

An articulator lower tray is provided herein. The articulator lower tray as disclosed herein may include a tray body part, an abutment support protrusion parts, and a cover part. The tray body part may include abutment pin holes formed at an interval, the abutment support protrusion parts may be formed at either side of the abutment pin holes, and the cover part may be disposed to cover tops of the abutment pin holes located between the abutment support protrusion parts. The articulator lower tray may further include an abutment pin which may be inserted into one of the abutment pin holes through the cover part.

Articulatorsemiadjustable, arcon with lower and upper parts that could be detached from one another or interconnected, with two mechanical joints. An upper horizontal shoulder (5) is fixed to an elevator (4), said elevator (4) is connected to an upper vertical body (11) and can move vertically to adjust the vertical position. A lower vertical body (10) is fixed to the base (1) and holds an axis with two joint heads (14). The upper vertical body (11) is pivotably connected to the lower vertical body (10) through the two joint heads (14), the distance between the joint heads can vary due to an elastic element (18), thus reproducing the lateral shift. The articulation between the vertical bodies (11 and 10) can be locked and unlocked via an elbow shaped piece (13). The articulator lower part has an incisive platform (8) with a position angle that could be adapted.

The invention relates to a method for animating models of the mandibular and maxillary arches of a patient in a corrected intermaxillary relationship, comprising: providing three-dimensional numerical models (MD, MX) of the mandibular and maxillary arches of the patient; providing a recording of the mandibular motion of the patient, said recording comprising a plurality of relative positions of the mandible of the patient with respect to the maxilla; selecting, from said positions, a reference position (X) of the mandible with respect to the maxilla of the patient; determining a target position (Y) for the mandible with respect to the maxilla, said target position defining a corrected intermaxillary relationship for the patient; determining a rigid transformation between the reference position (X) and the target position (Y); applying said rigid transformation (i) to the recording of the mandibular motion of the patient in order to animate the three-dimensional numerical models of the mandibular and maxillary arches, or (ii) to the three-dimensional numerical model of the mandible, the delivered recording of the mandibular motion being applied to the three-dimensional numerical models of the mandible and of the maxilla in order to animate said models.

The invention relates to a method for animating models of the mandibular and maxillary arches of a patient in a corrected intermaxillary relationship, comprising: providing three-dimensional numerical models (MD, MX) of the mandibular and maxillary arches of the patient; providing a recording of the mandibular motion of the patient, said recording comprising a plurality of relative positions of the mandible of the patient with respect to the maxilla; selecting, from said positions, a reference position (X) of the mandible with respect to the maxilla of the patient; determining a target position (Y) for the mandible with respect to the maxilla, said target position defining a corrected intermaxillary relationship for the patient; determining a rigid transformation between the reference position (X) and the target position (Y); applying said rigid transformation (i) to the recording of the mandibular motion of the patient in order to animate the three-dimensional numerical models of the mandibular and maxillary arches, or (ii) to the three-dimensional numerical model of the mandible, the delivered recording of the mandibular motion being applied to the three-dimensional numerical models of the mandible and of the maxilla in order to animate said models.

The present invention relates to an articulator. The articulator may significantly improve the coupling force between a maxillary fixing part and a mandibular fixing part. In addition, since the horizontal turning radius of the maxillary fixing part is easily adjustable according to the size of a mandible model, errors that may occur when the state of occlusion between the mandible model and a maxillary model is checked may be easily prevented.

The present invention relates to an articulator. The articulator may significantly improve the coupling force between a maxillary fixing part and a mandibular fixing part. In addition, since the horizontal turning radius of the maxillary fixing part is easily adjustable according to the size of a mandible model, errors that may occur when the state of occlusion between the mandible model and a maxillary model is checked may be easily prevented.

An articulator for dental use includes a first base, a second base coupled to the first base, and an occlusion pin configured to couple the first base and the second base in a closed position. The first base includes a first base body including a first groove configured to receive plaster, a first hinge portion configured to extend outwardly from one end of the first base body, and a plurality of pin holes. The second base includes a second base body including a second groove configured to receive the plaster, a second hinge portion configured to extend outwardly from one end of the second base body, and a plurality of guide pin holes. The second hinge portion is configured to couple to the first hinge portion via the occlusion pin in the closed position.

An articulator for dental use includes a first base, a second base coupled to the first base, and an occlusion pin configured to couple the first base and the second base in a closed position. The first base includes a first base body including a first groove configured to receive plaster, a first hinge portion configured to extend outwardly from one end of the first base body, and a plurality of pin holes. The second base includes a second base body including a second groove configured to receive the plaster, a second hinge portion configured to extend outwardly from one end of the second base body, and a plurality of guide pin holes. The second hinge portion is configured to couple to the first hinge portion via the occlusion pin in the closed position.