摘要:
The invention provides a dentition movement track indicator and a tracing method. The device includes an intra-oral fixation assembly and an extra-oral movement indicating assembly, wherein the intra-oral fixation assembly includes a lower denture base, a left side retention steel wire, a right side retention steel wire and a positioning steel wire. The lower denture base is arranged on the lingual side of the lower dentition and respectively extends from a lower incisor to the far center of the last tooth on the left side and the right side and clings to the lingual mucous membrane. The left side retention steel wire and the right side retention steel wire are distributed in a left-right symmetry mode. The extra-oral movement indicating assembly includes a connecting rod, an arc rod, an indicating plate and a plurality of rectangular parallelepiped thin rods. According to the dentition movement track indicator, an intra-oral fixation assembly.
摘要:
The invention relates to an occlusion determination device (10), with a bite frame (34) and an extraoral bracket (12) which are connected together, wherein a reference element has at least one vertical leg (19, 21) and at least one horizontal leg (14, 16) and is connected by way of a bipupillar linkage (24) to the bite frame (34). The reference element is designed as an extraoral bracket (12) which extends vertically offset from the bite frame (34).
摘要:
Artificial teeth are arranged in plates capable of being attached in an oral cavity as a dental prosthetic appliance, in which one or more linear arrangement direction indication parts showing the arrangement direction in the plates are provided on an occlusal plane of each of the molar teeth. At least one set of arrangement direction indication parts of the adjacent molar teeth is configured so as to extend generally in parallel direction. At least one set of arrangement direction indication parts of the antagonist upper molar teeth and lower molar teeth is configured so as to extend generally in parallel direction. The artificial molar teeth are arranged at an appropriate position according to the oral cavity environment of each patient, without requiring advanced skills and experiences, and are applicable to various arrangements of artificial teeth.
摘要:
The invention enables artificial molar teeth to be arranged at appropriate positions according to the oral cavity environment of each patient without requiring advanced techniques or experience. The artificial molar teeth have maxillary molar teeth and mandibular molar teeth arranged so as to form a pair on denture bases to be mounted on upper and lower jaws in an oral cavity, in which one cusp out of the cusps of the maxillary molar teeth and the mandibular molar teeth is engaged with a fossa of the antagonist, and at least one of the other cusps is engaged with a groove of the antagonist.
摘要:
The invention enables artificial molar teeth to be arranged at appropriate positions according to the oral cavity environment of each patient without requiring advanced techniques or experience. The artificial molar teeth have maxillary molar teeth and mandibular molar teeth arranged so as to form a pair on denture bases to be mounted on upper and lower jaws in an oral cavity, in which one cusp out of the cusps of the maxillary molar teeth and the mandibular molar teeth is engaged with a fossa of the antagonist, and at least one of the other cusps is engaged with a groove of the antagonist.
摘要:
Certain embodiments relate to a method of forming an individualized dental product ready for application including at least one tooth veneer, which is of a ceramic material. The method includes milling a first side of a ceramic substrate, filling up with a support material against the first side of the substrate, and milling the second side of the substrate until the veneer is plate-like and provided with a bevelled region over a distance (s) taken from an edge and 0.3 mm to 3 mm towards a middle portion of the veneer. The veneer thickness varies from 0 to a plate thickness (d*enlargement factor) over the distance (s). The method further includes sintering the dental product and removing the support material. Certain embodiments also relate to a product resulting from the method.
摘要:
The present invention provides artificial teeth of upper and lower jaws pairing between the cusp tips and pits, allowing to operate the arrangement easily by clarifying the three-dimensional positional relation of cusp tips and pits to contact with each other in occlusion and the contact region. In an artificial tooth of a mandibular first premolar tooth having a buccal cusp tip, a lingual cusp tip, a mesial pit, and a distal pit, the azimuth originating from the distal pit, the ratio of distance to the mesial surface, distal surface, buccal surface, and the lingual surface, and the positional relation of the cusp tips and pits are set appropriately. Further, in an artificial tooth of a maxillary first premolar tooth having a buccal cusp tip, a lingual cuts point, a mesial pit, and a distal pit, the azimuth originating from the lingual cusp tip, the ratio of distance to the mesial surface, distal surface, buccal surface, and the lingual surface, and the positional relation of the cusp tips and pits are set appropriately. The distal pit of the artificial tooth of the mandibular first premolar tooth is made to contact with the lingual cusp tip of the artificial tooth of the maxillary first premolar tooth, and the buccal cusp tip of the artificial tooth of the mandibular first premolar tooth is made to contact with the mesial pit of the artificial tooth of the maxillary first premolar tooth.
摘要:
Occlusal contact between upper and lower virtual three-dimensional teeth of a patient when the upper and lower arches are in an occlused condition are determined and displayed to the user on a user interface of a general purpose computing device. Various techniques for determining occlusal contacts are described. The areas where occlusal contact occurs is displayed on the user interface in a readily perceptible manner, such as by showing the occlusal contacts in green. If the proposed set-up would result in a interpenetration of teeth in opposing arches, such locations of interpenetration are illustrated in a contrasting color or shading (e.g., red). The ability to calculate distances and display occlusal contacts in a proposed set-up assists the user in planning treatment for the patient. The process can be extended to interproximal contact detection as well. The concepts also apply to dental prosthetics, such as crowns, fillings and dentures.
摘要:
The invention relates to a device for selecting an area (2; 22; 32; 42; 52; 62; 72; 82) of a dental restoration body (1;71), which is depicted in a 3D representation. At least portions of the area limit are provided in the form of dental-specific lines (5, 6, 8). The aim of the invention is to carry out a dental construction of a restoration body with the aid of a CAD system, whereby certain areas of the restoration body can be selected and construction tools are provided for machining the selected area in a 3D representation. To this end, the area (2; 22; 32; 42; 52; 62; 72; 82), which is to be machined with a construction tool, can be determined by selecting dental-specific lines (5, 6, 8) or dental-specific points (7.1 7.4) or a preparation edge (4). The method is used for assigning area limits to the selected area, said area limits being provided, at least in part, in the form of dental-specific lines (5, 6, 8).
摘要:
Occlusal contact between upper and lower virtual three-dimensional teeth of a patient when the upper and lower arches are in an occlused condition are determined and displayed to the user on a user interface of a general purpose computing device. Various techniques for determining occlusal contacts are described. The areas where occlusal contact occurs is displayed on the user interface in a readily perceptible manner, such as by showing the occlusal contacts in green. If the proposed set-up would result in a interpenetration of teeth in opposing arches, such locations of interpenetration are illustrated in a contrasting color or shading (e.g., red). The ability to calculate distances and display occlusal contacts in a proposed set-up assists the user in planning treatment for the patient. The process can be extended to interproximal contact detection as well. The concepts also apply to dental prosthetics, such as crowns, fillings and dentures.