Abstract: Occlusal-surface shape data and occlusal-surface position data of dentures are acquired on a dentist side, and the occlusal-surface shape data and the occlusal-surface position data are then transmitted to a grinding data provider side. Maxillomandibular occlusal state data is reproduced from the occlusal-surface shape data and the occlusal-surface position data on the grinding data provider side. A maxillomandibular occlusal adjustment portion is determined by changing a maxillomandibular occlusal vertical dimension on the grinding data provider side. Cutting data including the maxillomandibular occlusal adjustment portion and the occlusal-surface position data is prepared on the grinding data provider side, and the cutting data is transmitted to the dentist side. An occlusal adjustment is carried out on the dentist side by cutting the dentures by a grinding machine based on the cutting data.

Abstract: The present invention relates to a dental adhesive primer composition for use in dental fields employed to bond dental materials, such as restoration materials, dental crown materials, prosthetic materials, esthetic materials, orthodontic materials, preventive materials, core build-up materials and root canal materials, to ceramics, metals, resins, composite resins, glass ionomer cements, and hard biotissues (enamel or dentin of natural tooth). The present invention also relates to a dental adhesive primer composition including a dental adhesive composition which can be used not only in combination with another adhesive composition but also alone.

Abstract: A dental coloring material composition comprising containing: (a) a polymerizable monomer and/or an oligomer, (b) a polymerization catalyst, and (c) a pigment and/or a dye, wherein a color tone thereof is a cyan color based on three subtractive primary colors, or a color tone thereof is a magenta color based on three subtractive primary colors, or a color tone thereof is a yellow color based on three subtractive primary colors, and a dental color material set using the dental coloring material compositions in combination.

Abstract: 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.

Abstract: The present invention provides an antibacterial artificial nail composition which can form a cured article having an antibacterial effect by applying the composition on a surface of a natural nail or an artificial nail and polymerizing the composition, using an artificial nail technique of forming a cured article on a natural nail or an artificial nail. Disclosed is an antibacterial artificial nail composition comprising (A) a compound having at least one radical polymerizable unsaturated double bond and an antibacterial group in the molecule and/or (B) an antibacterial filler, (C) a compound having at least one radical polymerizable unsaturated double bond in the molecule, and (D) a polymerization initiator.

Abstract: Provided are opaque materials exhibiting a good adhesive strength and a good color tone reproduction comparable with natural dental crowns as well as having a good operability. In addition, the opaque materials may exhibit a stain-resistance property in rebuilding-up a dental composition on the opaque materials in a cured form with a metal instrument. Further, the opaque materials may exhibit a good color tone reproduction comparable with natural dental crowns even if a dental membrane is thinly formed from the opaque metals. The dental membrane is formed from a first opaque layer and a second opaque layer, wherein the first opaque layer contains a filler of indefinite-shape particles and the second opaque layer contains a filler of spherical-shape particles, and wherein the first opaque layer is formed on a metal base and the second opaque layer is formed on the first opaque layer.

Abstract: The present invention is directed to compounds and adhesives finding special utility in dental applications. Compounds of formulae: are of special interest, wherein: R represents a polymerizable group of the structure ?wherein R1 represents a hydrogen atom or methyl group; A represents an oxygen atom or a sulfur atom; Xqs represent independently an oxygen atom or a sulfur atom; Yqs represent independently hydrogen atom; Zqs may independently represent D-R2 where D represents a single carbon atom and R2 represents phenyl; p is an integer from 1 to 10; and q is an integer from 1 to p.

Abstract: An artificial teeth packaging container includes an artificial teeth accommodating portion for fixing a plurality of continuously arranged artificial teeth detachably, and holding an arrangement position relation with an adjacent artificial teeth and an arrangement position relation with an upper or lower artificial molar teeth, in which the artificial teeth accommodating portion covers the plurality of artificial teeth from an occlusal plane in a state exposed around a cervical portion.

Abstract: 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.

Abstract: The present invention provides an artificial nail composition which can easily impart a special appearance to the tip of the finger, and which is an artificial nail material coated on a natural or artificial nail, and is used by coating on the surface of a natural or artificial nail followed by polymerization and, more particularly, an artificial nail composition which is vivid and has a natural color tone having a transparent sensation, that cannot be achieved by a conventionally used artificial nail composition containing an organic and/or inorganic colorant utilizing absorption and/or a scattering phenomenon of light, and imparts special appearance by an interference color.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: The invention enables to arrange teeth at appropriate positions depending on the oral cavity environment of each patient without requiring advanced techniques or experiments. In artificial molar teeth to be arranged on bases which are mounted in an oral cavity as a dental prosthetic appliance, an occlusal surfaces of the teeth are provided with side grooves extending toward a buccal side or lingual side, and intersecting portions (tops) of the side grooves with the outer circumference of the occlusal surface, and a contact point are formed on a plane parallel to the mesial distal direction. Or the teeth are configured such that the bottom ends of fossae on the occlusal surface and the contact point are formed on a plane parallel to the mesial distal direction. Alternatively, mutually parallel flat frictional contact portions are provided around cusps mutually contacting with the maxillary molar teeth and the mandibular molar teeth, respectively.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: An artificial tooth where an occlusal surface is formed by grinding has a reference point that represents a position and an angle of the artificial tooth when an occlusal surface of the artificial tooth is obtained by an occlusal-surface form measuring apparatus. The reference point is a convexed spherical surface or a concaved spherical surface arranged on the occlusal-surface. The spherical surface is 3 or more. The convexed spherical surface is fit to the concaved spherical surface when the maxillary artificial tooth and mandibular artificial tooth are occluded. The occluding portion of the artificial tooth has a grinding portion.

Abstract: 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.

Abstract: 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.