Denture system and prosthesis used in denture system

A dental prosthesis system configured to be detachably worn by a user, the system comprising a dental prosthesis including prosthetic teeth that resemble outer appearances of natural teeth, wherein

• the dental prosthesis is a complete dental prosthesis for an edentulous jaw, and includes an incurved contact surface configured to contact a gingiva of the user when the dental prosthesis is arranged inside an oral cavity of the user, and
• following relationships are established in first reference cross-sections including first reference lines, which are lines connecting a middle point of a line that connects centers of left and right first molars in a plan view and centers of the respective prosthetic teeth:
• for at least one prosthetic tooth in an incisal portion, a distance d1 between a first point and an outer edge of the dental prosthesis on a lingual side satisfies d1≤20 mm,
• wherein the first point is an intersection of the incurved contact surface and a line connecting the center of the one prosthetic tooth and a position that is offset, in a direction parallel to the first reference lines, to the lingual side by 3 mm from a base end point of a tooth surface of the one prosthetic tooth on a labial side;
• and
• for at least one prosthetic tooth in a occlusal portion, a distance d2 between a second point and the outer edge of the dental prosthesis on the lingual side satisfies d2≤20 mm,
• wherein the second point is an intersection of the incurved contact surface and a line connecting the center of the one prosthetic tooth and a position that is offset, in the direction parallel to the first reference lines, to the lingual side by a/2 (a being a buccolingual diameter of the one prosthetic tooth in the corresponding first reference cross-section) from a base end point of a tooth surface of the one prosthetic tooth on a buccal side.

A dental prosthesis system configured to be detachably worn by a user, the system comprising a dental prosthesis including prosthetic teeth that resemble outer appearances of natural teeth, wherein

• the dental prosthesis is a partial dental prosthesis, and includes an incurved contact surface configured to contact a gingiva of the user when the dental prosthesis is arranged inside an oral cavity of the user, and
• following relationships are established in second reference cross-sections including second reference lines which pass through centers of the respective prosthetic teeth:
• in a case where the dental prothesis includes an incisal portion, for at least one prosthetic tooth in the incisal portion, a distance d3 between a third point and an outer edge of the dental prosthesis on a lingual side satisfies d3≤20 mm,
• wherein the third point is an intersection of the incurved contact surface and a line connecting the center of the one prosthetic tooth and a position that is offset, in a direction parallel to the second reference lines, to the lingual side by 3 mm from a base end point of a tooth surface of the one prosthetic tooth on a labial side;
• and
• in a case where the dental prosthesis includes a occlusal portion, for at least one prosthetic tooth in the occlusal portion, a distance d4 between a fourth point and the outer edge of the dental prosthesis on the lingual side satisfies d4≤20 mm,
• wherein the fourth point is an intersection of the incurved contact surface and a line connecting the center of the one prosthetic tooth and a position that is offset, in the direction parallel to the second reference lines, to the lingual side by b/2 (b being a buccolingual diameter of the one prosthetic tooth in the corresponding second reference cross-section) from a base end point of a tooth surface of the one prosthetic tooth on a buccal side.

A dental prosthesis configured to be detachably worn by a user, the dental prosthesis comprising prosthetic teeth that resemble outer appearances of natural teeth, wherein

• the dental prosthesis is a complete dental prosthesis for an edentulous jaw, and comprises an incurved contact surface configured to contact a gingiva of the user when the dental prosthesis is arranged inside an oral cavity of the user, and
• following relationships are established in first reference cross-sections including first reference lines, which are lines connecting a middle point of a line that connects centers of left and right first molars in a plan view and centers of the respective prosthetic teeth:
• for at least one prosthetic tooth in an incisal portion, a distance d1 between a first point and an outer edge of the dental prosthesis on a lingual side satisfies d1≤20 mm,
• wherein the first point is an intersection of the incurved contact surface and a line connecting the center of the one prosthetic tooth and a position that is offset, in a direction parallel to the first reference lines, to the lingual side by 3 mm from a base end point of a tooth surface of the one prosthetic tooth on a labial side;
• and
• for at least one prosthetic tooth in a occlusal portion, a distance d2 between a second point and the outer edge of the dental prosthesis on the lingual side satisfies d2≤20 mm,
• wherein the second point is an intersection of the incurved contact surface and a line connecting the center of the one prosthetic tooth and a position that is offset, in the direction parallel to the first reference lines, to the lingual side by a/2 (a being a buccolingual diameter of the one prosthetic tooth in the corresponding first reference cross-section) from a base end point of a tooth surface of the one prosthetic tooth on a buccal side.

A dental prosthesis configured to be detachably worn by a user, the dental prosthesis comprising prosthetic teeth that resemble outer appearances of natural teeth, wherein

• the dental prosthesis is a partial dental prosthesis, and comprises an incurved contact surface configured to contact a gingiva of the user when the dental prosthesis is arranged inside an oral cavity of the user, and
• following relationships are established in second reference cross-sections including second reference lines which pass through centers of the respective prosthetic teeth:
• in a case where the dental prothesis comprises an incisal portion, for at least one prosthetic tooth in the incisal portion, a distance d3 between a third point and an outer edge of the dental prosthesis on a lingual side satisfies d3≤20 mm,
• wherein the third point is an intersection of the incurved contact surface and a line connecting the center of the one prosthetic tooth and a position that is offset, in a direction parallel to the second reference lines, to the lingual side by 3 mm from a base end point of a tooth surface of the one prosthetic tooth on a labial side;
• and
• in a case where the dental prosthesis comprises a occlusal portion, for at least one prosthetic tooth in the occlusal portion, a distance d4 between a fourth point and the outer edge of the dental prosthesis on the lingual side satisfies d4≤20 mm,
• wherein the fourth point is an intersection of the incurved contact surface and a line connecting the center of the one prosthetic tooth and a position that is offset, in the direction parallel to the second reference lines, to the lingual side by b/2 (b being a buccolingual diameter of the one prosthetic tooth in the corresponding second reference cross-section) from a base end point of a tooth surface of the one prosthetic tooth on a buccal side.