Abstract: The present invention addresses the problem of providing a mouthpiece that has an excellent fit and that is not prone to breakage or deformation. This mouthpiece for solving the above problem has: a pair of mouthpiece body parts configured from an upper-jaw mouthpiece body part mounted to the upper jaw, and a lower-jaw mouthpiece body part mounted to the lower jaw; a positioning member for restricting rearward displacement of the lower-jaw mouthpiece body part; and a support part that is disposed between the positioning member and the body parts and that supports the positioning member, so as to cover a portion of a surface that faces a surface of the upper-jaw mouthpiece body part and/or the lower-jaw mouthpiece body part that is mounted to a tooth row, the support part including a material that has a different flexural modulus than the mouthpiece body parts.

Abstract: A coupling member includes a sliding member and a sleeve. The sliding member has one axial direction end portion coupled to a first attachment portion provided at a first attachment that is mounted to one of a maxilla or a mandible. The sleeve has one axial direction end portion coupled to a second attachment portion provided at a second attachment that is mounted to the other of the maxilla and the mandible. The sliding member is inserted into the sleeve so as to be slidable. A restricting section is formed at the sleeve between two axial direction end portions of the sleeve so as to restrict sliding of the sliding member in both directions along an axial direction of the sliding member.

Abstract: The present invention addresses the problem of providing: a mouthpiece having a shape that adequately conforms to the teeth rows, etc., of a user, the mouthpiece having an excellent feel during wearing; and a method for manufacturing the mouthpiece. A mouthpiece for solving the abovementioned problem includes a mouthpiece body part having a hard section, which has a groove for accommodating the teeth rows and/or the gums, and a soft section, which contains a material having a lower bending elasticity than that of the hard section. The proportion of the maximum thickness of the soft section to the minimum thickness of the soft section is 5 or greater.

Abstract: A mouthpiece including a constituent portion (X) that includes an olefin-based polymer (A) having a repeating unit having 2 or 3 carbon atoms and that satisfies a bending elastic modulus (?) at 23° C. of 80 MPa???1000 MPa.

Abstract: A dental coupling member related comprises: a first elongated body including, in a first-orientation end region, a first coupling part to be coupled with a first attaching part of a first dental appliance and including, formed in a second-orientation end region, a screwing part; an outer tube including, in a second-orientation end region, a second coupling part to be coupled with a second attaching part of a second dental appliance, and being open at an end on a first-orientation end region side; a third elongated body including a screwed part formed in a first-orientation end region and is inserted into the outer tube in a second-orientation end region of the outer tube, the screwed part being for screwing with the screwing part; and a protrusion projecting from an inner peripheral surface of the outer tube and facing an end surface of the third elongated body on the second-orientation end region side.

Abstract: A dental coupling member related to a first aspect of the invention comprises: a rod having, at one end region, a first coupling part that is coupled to a first attachment part of a first dental tool, and having a screw part at the other end region; and a cylindrical body having, in an inner circumferential surface of one end region, a screwed part into which the screw part is screwed, and having, at the other end region, a second coupling part that is coupled to a second attachment part of a second dental tool. This dental coupling member comprises a different-torque part at the screw part and/or the screwed part, the different-torque part having a different torque for screwing against the other of the screw part and the screwed part. This dental coupling member suppresses the occurrence of loosening between the screw part and the screwed part.

Abstract: A dental coupling member which can easily adjust the position of the lower jaw of the user without increasing the size of the coupling member is provided. The dental coupling member is attached to upper and lower oral appliances to couple them, and regulates displacement of the lower oral appliance to rear side. The dental coupling member has; an outer which is a cylindrical member having a through hole, to be attached to one oral appliance; an inner having a rod-shaped insertion portion to be inserted into an interior of the cylindrical portion and slidably held by the outer, the inner to be attached to the other oral appliance; and a stopper adjustably positioned inside the cylindrical portion, the stopper serve to limit a slide width of the insertion portion inside the cylindrical portion by adjustment of its position along the axial direction of the cylindrical portion.

Abstract: A mouthpiece including a constituent portion (X) that includes an olefin-based polymer (A) having a repeating unit having 2 or 3 carbon atoms and that satisfies a bending elastic modulus (?) at 23° C. of 80 MPa???1000 MPa.

Abstract: An oral appliance may include a first jaw retainer piece, a second jaw retainer piece, a holding member, and a rod. The holding member may be mounted on a front-facing portion of the first jaw retainer piece, and have an opening for receiving a rod. The rod may have a leading end slidably inserted into the opening of the holding member and a trailing end mounted on a front-facing portion of the second jaw retainer piece. The oral appliance may further include a restrictor that restricts sliding of the rod relative to the holding member.

Abstract: The mouthpiece according to a first aspect of the present invention comprises a pair of opposing upper jaw mouthpiece and lower jaw mouthpiece, a pair of positioning members that is provided in either one of the upper jaw mouthpiece and the lower jaw mouthpiece and to be able to carry out positional adjustment in a front-back direction, and a pair of stoppers that is provided in the other one of the upper jaw mouthpiece and the lower jaw mouthpiece, regulates a rearward displacement of the lower jaw mouthpiece by coming into abutment with the positioning members, and regulates lateral displacements of the upper jaw mouthpiece and the lower jaw mouthpiece by coming into abutment with the either one of the upper jaw mouthpiece and the lower jaw mouthpiece.

Abstract: A mouthpiece with which the advancement amount of a lower jaw mouthpiece can be more easily adjusted, without increasing the size of the mouthpiece, is provided. The mouthpiece has: a pair of upper jaw and lower jaw mouthpieces facing each other; a male screw; a female screw; a front holding part provided to one of the mouthpieces, holding the male screw or the female screw; and a rear holding part provided to the other mouthpiece, holding the female screw or the male screw further rearward than the front holding part. The female screw and the male screw position the lower jaw mouthpiece in the front-rear direction with respect to the upper jaw mouthpiece, as a result of the turning of the male screw which is screwed into the female screw at a denture tooth surface or further rearward than the denture tooth surface.

Abstract: A dental coupling member related to a first aspect of the invention comprises: a rod having, at one end region, a first coupling part that is coupled to a first attachment part of a first dental tool, and having a screw part at the other end region; and a cylindrical body having, in an inner circumferential surface of one end region, a screwed part into which the screw part is screwed, and having, at the other end region, a second coupling part that is coupled to a second attachment part of a second dental tool. This dental coupling member comprises a different-torque part at the screw part and/or the screwed part, the different-torque part having a different torque for screwing against the other of the screw part and the screwed part. This dental coupling member suppresses the occurrence of loosening between the screw part and the screwed part.