摘要:
An object of the present invention is to provide a dental glass ionomer cement composition having high safety to a human body and sufficient working time, in which mechanical properties, mixing ability in hand mixing and dischargeability out of a container after mechanical kneading are simultaneously improved with satisfactory balance compared with the prior art. Disclosed is a dental glass ionomer cement composition including 0.001 to 3% by weight of (a) a polysaccharide nanofiber having an aspect ratio of 100 or more and an average fiber diameter of 100 nm or less.
摘要:
The present invention relates to a novel diisocyanate-based radical polymerizable silane coupling compound having an urethane bond and a medical and/or dental curable composition comprising the same. The present invention provides a novel silane coupling agent that imparts high affinity to a radical polymerizable monomer, thereby imparting high mechanical strength and durability when used for a medical and/or dental curable composition, and an inorganic filler surface-treated with the novel silane coupling agent and a novel medical and/or dental curable composition.
摘要:
The present invention relate to a novel silane coupling agent and a medical and/or dental curable composition comprising the same. It is an object of the present invention to provide a novel silane coupling agent that imparts high affinity to a radical polymerizable monomer, thereby imparting high mechanical strength, flexibility and durability when used for a medical and/or dental curable composition, and an inorganic filler surface-treated with the novel silane coupling agent and a novel medical and/or dental curable composition. A silane coupling agent including repeating units such as a urethane bond and polyethylene glycol (ether bond) at a specific position is used.
摘要:
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.
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 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.
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:
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.
摘要:
A dental prosthetic device design method according to an aspect of the present invention is a method for designing a dental prosthetic device by a computer, the method including: acquiring scan data of maxillary and mandibular dentitions; determining a restoration site of a tooth, based on the scan data; reading out plural pieces of attrition shape data of a tooth related to the restoration site, from maxillary and mandibular tooth shape data sets having plural pieces of attrition shape data with different degrees of attrition for each tooth of the maxillary and mandibular dentitions; selecting attrition shape data from among the plural pieces of attrition shape data, in accordance with the degrees of attrition of the maxillary and mandibular dentitions; placing the selected attrition shape data at the restoration site; and creating shape data of a dental prosthetic device from the attrition shape data placed at the restoration site.