Patent application number | Description | Published |
20090035738 | Tooth for tooth model, comprising enamel portion impregnated with resin or low melting point glass, and method for producing the same - An object of the present invention is to provide a tooth model capable of exhibiting grinding feel similar to that of a natural tooth, with which students aspiring to become dentists experience intraoral work and perform training related to a treatment, and also experience formation of an abutment tooth, formation of cavity or the like. A difference in the grinding feel between tooth enamel and dentin, which constitute a natural tooth, is reproduced by impregnating a sintered body formed integrally of an inorganic powder such as alumina with a thermosetting resin or a low melting point glass to form an enamel portion. | 02-05-2009 |
20100151418 | SET OF ARTIFICIAL TEETH OF ANTERIOR TEETH LINEARLY CONTACTING WITH EACH OTHER - In a set of artificial teeth, at least one of mutually adjacent artificial anterior teeth includes abutting faces which contacts linearly with the other one so as to form abutting lines and capable of continuously moving the positions of the linear contact, the abutting faces being formed of any one of circular columnar surface, elliptical columnar surface, and conical surface. | 06-17-2010 |
20100151419 | ARTIFICIAL TEETH - The invention provides artificial teeth arranged in plates attached in an oral cavity as a dental prosthetic appliance, in which arrangement direction indication parts showing a directivity of arrangement in the plates extending in an apical-cervical direction or in a mesiodistal direction are provided at a vestibular side or an oral side. The arrangement direction indication parts extending in the apical-cervical direction are positioned linearly as seen from the vestibular side in a occluded state of mandibular teeth and maxillary teeth. The arrangement direction indication parts extending in the mesiodistal direction are positioned linearly as seen from the vestibular side in the state arranged in plates. The artificial teeth are arranged at an appropriate position according to an oral environment of each patient, without requiring advanced skills and experiences. | 06-17-2010 |
20100151422 | ARTIFICIAL ANTERIOR TOOTH HAVING FRICTIONAL SURFACE AT LINGUAL SIDE, AND A SET OF ARTIFICIAL TEETH, AND DENTURE - Provided is an artificial anterior tooth capable of grinding the food. The lingual side of an artificial anterior is provided with a protuberance for forming a frictional surface dented in an arch shape as seen from the mesiodistal direction, and the labial side of an opposite artificial lower tooth is provided with a protuberance for forming a sliding surface abutting on the frictional surface and sliding on the frictional surface by sliding motion of upper and lower jaws. | 06-17-2010 |
20100151424 | ARTIFICIAL MOLAR TEETH - The invention provides artificial teeth arranged in plates 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, being applicable to various arrangement of artificial teeth. | 06-17-2010 |
20110005945 | CHEMICALS MIXING CONTAINER WITH OFFSET COMMUNICATING HOLES - A chemicals mixing container | 01-13-2011 |
20110017777 | CHEMICALS MIXING CONTAINER WITH ELASTIC PARTITION WALL - A chemicals mixing container | 01-27-2011 |
20110039230 | SET OF ARTIFICIAL TEETH WITH NO ABUTMENT AT HIGHEST CONTOURS - The present invention is to provide a set of easily arranged artificial teeth in which shapes of abutment surfaces of adjacent artificial teeth are not varied. In the set of artificial teeth, at least two artificial teeth adjacent to each other in a mesial-distal direction respectively have highest contours, one of the highest contours on the adjacent sides is positioned on an occlusal surface side and a buccal surface side relative to the other, and the artificial teeth are abutted with each other at abutment positions between the highest contours of both the artificial teeth in the occlusal direction and the buccolingual direction. Parting lines of molds for forming the artificial teeth respectively pass through the highest contours. | 02-17-2011 |
20110039231 | SET OF ARTIFICIAL TEETH HAVING CONVEX ADJUSTMENT SURFACE - A set of artificial teeth allows for easy occlusion adjustment without high precision in arrangement. One of a pair of occluding upper and lower artificial molar teeth has convex adjustment surfaces which are formed of a spherical surface, a cylindrical surface or a conical surface on an occlusal surface thereof, and the other of the pair of artificial molar teeth has opposing surfaces which are formed of a flat surface, a spherical surface, a cylindrical surface or a conical surface in point contact or line contact with the adjustment surfaces on an occlusal surface thereof. | 02-17-2011 |
20110045441 | ARTIFICIAL MOLAR TEETH - Maxillary molar teeth and mandibular molar teeth are formed so as to be different in intersection angles (vertical line angles) between vertical lines extending in a vertical direction to occlusal facets and occlusal planes. That is, the maxillary molar teeth and the mandibular molar teeth are formed so as to be different in intersection angles of vertical lines of the protrusive occlusal facet and retrusive occlusal facet respectively. The occlusal facets of at least one of buccal cusps of the maxillary molar teeth and lingual cusps of the mandibular molar teeth are designed so that at least one of the width in the mesiodistal direction and the width in the cuspal-cervical direction is smaller than the occlusal facets of the opposite cusps of the antagonist molar teeth. | 02-24-2011 |
20110207085 | SET OF ARTIFICIAL TEETH OF ANTERIOR TEETH LINEARLY CONTACTING WITH EACH OTHER - In a set of artificial teeth, at least one of mutually adjacent artificial anterior teeth includes abutting faces which contacts linearly with the other one so as to form abutting lines and capable of continuously moving the positions of the linear contact, the abutting faces being formed of any one of circular columnar surface, elliptical columnar surface, and conical surface. | 08-25-2011 |
20110318703 | DENTURE GRINDING MACHINE - A denture grinding machine includes: a denture-holding table for holding dentures; a grinding tool for grinding the dentures held on the denture-holding table; a main body for holding the grinding tool; a moving mechanism for causing relative movement between the denture-holding table and the main body; and a driving mechanism for relatively driving the main body and the denture-holding table. The moving mechanism moves relatively the denture-holding table and the main body in three-dimensional coordinate directions based on grinding portion data, and the grinding tool performs grinding of the denture occlusal surface from a direction perpendicular to the occlusal surface. | 12-29-2011 |
20130045458 | OCCLUSION EVALUATION APPARATUS AND OCCLUSION EVALUATION METHOD - An occlusion evaluation apparatus capable of evaluating a masticatory ability depending on an occlusal geometry of teeth without actually used by a human subject, reads three dimensional data of geometries of maxillary molar teeth | 02-21-2013 |
20130054190 | OCCLUSAL WEAR EVALUATION APPARATUS AND OCCLUSAL WEAR EVALUATION METHOD - An occlusal wear evaluation apparatus capable of evaluating quantitatively an occlusal wear of a used denture reads three dimensional data of a denture before use and three dimensional data of the denture after use, calculates a difference in a set value of an articulator allowing the maxillary dental arch and the mandibular dental arch of the denture to occlude between the denture before use and the denture after use, by way of simulating movements of a jaw in the articulator with the three dimensional data of the denture before use and the three dimensional data of the denture after use, and indicates the calculated difference. | 02-28-2013 |
20130316304 | ARTIFICIAL MOLAR TEETH - 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. | 11-28-2013 |
20130323682 | ARTIFICIAL TEETH - Artificial teeth arranged in plates attachable in an oral cavity as a dental prosthetic appliance, in which arrangement direction indication parts showing a directivity of arrangement in the plates extending in an apical-cervical direction or in a mesiodistal direction are provided at a vestibular side or an oral side. The arrangement direction indication parts extending in the apical-cervical direction are positioned linearly as seen from the vestibular side in an occluded state of mandibular teeth and maxillary teeth. The arrangement direction indication parts extending in the mesiodistal direction are positioned linearly as seen from the vestibular side in the state in which the teeth are arranged in the plates. The artificial teeth are arranged at an appropriate position according to an oral environment of each patient, without requiring advanced skill and experience. | 12-05-2013 |
20140030685 | TOOTH FOR DENTAL ARCH MODEL AND METHOD FOR PRODUCING THE SAME - The present invention relates to a tooth which is used in a dental arch model with which dental students can experience dental works in the oral cavity and practice treatments. More specifically, the present invention relates to a tooth composition for formation trainings such as abutment tooth formation and cavity preparation. Since conventionally used dental arch models have a grinding sensation different from a natural tooth, dental students having completed formation trainings such as abutment tooth formation and cavity preparation by using these conventional models are frequently puzzled to have different grinding and handling properties upon dental works in the oral cavity in practice. That is, these conventional dental arch models are largely different from a natural tooth in grinding sensation including slipperiness and easiness in grinding. A tooth for a dental arch model simulating the enamel texture and the dentin texture constituting a natural tooth whereby even the difference in grinding sensation between the enamel texture and the dentin texture constituting a natural tooth can be reproduced by forming at least the enamel portion with the use of a sintered body of an inorganic powder such as alumina. | 01-30-2014 |
20140343866 | OCCLUSAL WEAR EVALUATION APPARATUS AND OCCLUSAL WEAR EVALUATION METHOD - An occlusal wear evaluation apparatus capable of evaluating quantitatively an occlusal wear of a used denture reads three dimensional data of a denture before use and three dimensional data of the denture after use. The apparatus calculates a difference in a set value of an articulator allowing the maxillary dental arch and the mandibular dental arch of the denture to occlude between the denture before use and the denture after use, by way of simulating movements of a jaw in the articulator with the three dimensional data of the denture before use and the three dimensional data of the denture after use, and indicates the calculated difference. | 11-20-2014 |