Zinc-fluoride compositions, dental articles comprising zinc-fluoride compositions, and methods for reducing bacteria on a tooth surface and/or remineralizing a tooth surface are described.

An interdental cleaning tool (1) comprises a base (10) having a shaft (20) that has a shape to be inserted into an interdental space, wherein the base (10) is formed of a composite material comprising a synthetic resin, a reinforcement material and a low-hardness resin having a lower hardness than the hardness of the synthetic resin.

An interdental cleaning tool (1) comprises a base (10) having a shaft (20) that has a shape to be inserted into an interdental space, wherein the base (10) is formed of a composite material comprising a synthetic resin, a reinforcement material and a low-hardness resin having a lower hardness than the hardness of the synthetic resin.

An interdental brush of the present disclosure includes a base part including a handle part that is grippable by a user, and a core part extending from the handle part and having a diameter or thickness that decreases as a distance from the handle part increases, and a soft part including an anti-slip part covering at least a part of the handle part, and an interdental cleaning part covering the core part and including a plurality of projections for removing foreign substances between teeth, the soft part being formed of an elastic material. The base part includes a plurality of through holes disposed to be spaced apart from each other in a longitudinal direction, and the soft part is provided in a space formed by at least one of the plurality of through holes.

A dental flosser is provided for delivering to a mouth a moisture activated composition including a flavor agent. The dental flosser comprises a base portion forming a handle and terminating at a distal head portion. A pair of spaced apart arms extend from the head portion, each of the spaced apart arms having a proximal first end adjoining the head portion and a distal second end. A length of dental floss extends between the distal second ends of the arms. A surface of at least one arm of the pair of arms defines a cavity between the first end and the second end forming a well for accommodating the composition. The width of the cavity in a plane parallel to the surface of the at least one arm is substantially the same or greater than the width of the bottom of the cavity.

In order to prevent shaft portion from being broken in ejection of base portion from mold, method for manufacturing interdental cleaning tool includes: base portion forming step of forming base portion by filling first space of primary mold (50) with synthetic resin, which includes first and second mold members (50A, 50B); and cleaning portion forming step of forming cleaning portion around shaft portion by filling second space of secondary mold with elastomer. Base portion forming step uses first and second mold members (50A, 50B). First and second molds include: first and second contact surfaces (51A, 51B); pair of first and second spaced-apart portions (54A, 54B); and first and second connection portions (52A, 52B), angle (θ) between each of first and second spaced-apart portions (54A, 54B) and separation plane being acute.

In order to prevent shaft portion from being broken in ejection of base portion from mold, method for manufacturing interdental cleaning tool includes: base portion forming step of forming base portion by filling first space of primary mold (50) with synthetic resin, which includes first and second mold members (50A, 50B); and cleaning portion forming step of forming cleaning portion around shaft portion by filling second space of secondary mold with elastomer. Base portion forming step uses first and second mold members (50A, 50B). First and second molds include: first and second contact surfaces (51A, 51B); pair of first and second spaced-apart portions (54A, 54B); and first and second connection portions (52A, 52B), angle (θ) between each of first and second spaced-apart portions (54A, 54B) and separation plane being acute.

A hybrid dental tool is disclosed herein. The hybrid dental tool includes a flosser having a flossing head. The flossing head can include a filament stretching between the first arm and a second arm. The flossing head can include a pick receptacle. The hybrid dental tool can further include a pick that has a first end and a second end. The pick can be sized and shaped to fit within the pick receptacle such that the first and second ends are protected. The pick can releasably connect with the flossing head to allow the separation of the pick from the flossing head.

A hybrid dental tool is disclosed herein. The hybrid dental tool includes a flosser having a flossing head. The flossing head can include a filament stretching between the first arm and a second arm. The flossing head can include a pick receptacle. The hybrid dental tool can further include a pick that has a first end and a second end. The pick can be sized and shaped to fit within the pick receptacle such that the first and second ends are protected. The pick can releasably connect with the flossing head to allow the separation of the pick from the flossing head.

To provide a method for manufacturing an interdental cleaning tool that can prevent deformation of a core base at molding of a cleaning flexible part using an elastomer material, thereby effectively preventing occurrence of molding failure of the cleaning flexible part. The method in the present invention includes: a base part molding step of providing first metal molds 30 and 31 for molding base parts with a plurality of first molding spaces 32 aligned in parallel and including core base molding sections 32a and handle base molding sections 32b, providing the first metal molds 30 and 31 with connection part molding sections 35 to communicate with the adjacent handle base molding sections 32b, and supplying a synthetic resin material with a fiber material at a time to the plurality of first molding spaces 32 from gates 34 to form a plurality of base parts at a time; and a flexible part molding step of setting the core bases of the base parts into second metal molds, holding the core bases at two or more longitudinal portions by a plurality of pairs of hold pins in the second metal molds, each pair including two pins, and charging an elastomer material into the cleaning flexible part molding spaces.