A syringe for dispensing a flowable material. The syringe has a cartridge with a cartridge front end and at least a first dispensing nozzle arranged at the cartridge front end. The syringe further has closure for openably closing the first dispensing nozzle. The closure includes a cap and at least a first seal. The cap is telescopically placeable on the cartridge front end. The closure or the cartridge has a first magnet for establishing a magnetic attraction between the closure and the cartridge. In a situation in which the closure is placed on the cartridge front end, the closure and the cartridge can be positioned in a sealing position in which the first seal spaces the cap and the cartridge front end away from each other against a magnetic attraction that urges the cap and the cartridge toward each other.

Antimicrobial polymer composite materials are disclosed that are suitable for making oral devices used in dental applications, such as denture bases. Acrylic resin composite materials comprising antimicrobial polymers and antimicrobial fillers provide reduction in common oral microorganisms after long-term aging, with reduced release rate of antimicrobial agents from the composite material. Antimicrobial polymers are prepared from compositions comprising acrylate and/or methacrylate monomers and polymerizable quaternary ammonium silicon-containing compounds.

The invention provides a dental implant system with a surface gradient microporous structure and a preparation method thereof. The dental implant system includes a non-threaded micro-cone cylindrical dental implant and an abutment, wherein the dental implant includes a microporous layer with a bionic bone trabecular structure and a base with extremely high density and mechanical strength. The dental implant system of the invention has both the precision of the internal structure and the bionic characteristics of the surface structure, which effectively improves the long-term stability after implantation, reduces the complexity of the processing process of the dental implant system, and can realize personalized and batch production.

An orthodontic tool includes a trimmer having a lever, a base, and a spring positioned between the lever and the base. A first substantially transversely extending portion extends from the lever and a second substantially transversely extending portion extends from the base. A cutting surface is associated with each transversely extending portion. The orthodontic tool also includes a tool set having at least two arms coupled together at one end by a fastener and the arms including two or more of a sanding tool, a hook, and a pick.

A dental implant has an implant body made of diamond material, the implant body being provided with a bore hole that has at least one lateral dimension and a depth dimension, the lateral dimension and the depth dimension being mm sized. The bore hole is substantially formed by laser light being directed at the implant body to form said bore hole by softening said diamond material at an intended location of said bore hole. The bore hole is further defined by utilizing at least one metallic drilling tool to remove more of the diamond material after initial formation of the bore hole by said laser light. Preferably, the drilling tool has a cone shaped drilling head or a rectangular drilling head.

An intra oral removable orthodontic assembly which influences teeth alignment. The assembly comprises; a intraoral attachment fitted to a seating unit and in use, held in place by intraoral engagement of the attachment with crowns of teeth of a wearer. The intraoral attachment is shaped to at least partially conform to at least a dental arch. The seating unit includes a power source, a PCB controller and a source of vibration transmissible to the attachment. The seating device vibrates in response to the source of vibration at a selected frequency between 60 Hz-130 Hz inducing a response in a selected tooth or group of teeth of a wearer. The attachment includes a working head having an array of displaceable formations responsive to said vibration and arranged to engage said teeth.

A resin composition for stereolithography may emit a weak odor, enable easy fabrication of an object, and may be made into a cured product having desirable toughness and water resistance when used for stereolithographical fabrication. A resin composition for stereolithography may include: an α,β-unsaturated double bond group-containing compound (A) having a homopolymer glass transition temperature (Tg) of 40° C. or more, having a plurality of independent aromatic rings, and having no urethane bond; an α,β-unsaturated double bond group-containing compound (B) having a homopolymer glass transition temperature (Tg) of less than 40° C., having a ring structure, and having a normal boiling point of 250° C. or more; and a photopolymerization initiator (C).

The invention is an assortment of apparatuses to magnetically tether a dental hygienist's hand to the utility tubes and hoses commonly found in a dental office. In a preferred embodiment, this is an adjustable silicone utility band containing a magnet which is worn by the hygienist. This tethers him or her to a utility hose or tube, which has a clasp that contains a reciprocal magnet. In another embodiment, the invention is a ring or fingergrip which contain magnets that tether to the utility hose or tube via the magnetized clasp.

The invention relates to an electric toothbrush provided with longitudinal, also called axial, oscillating movement that occurs at the active end of the bristle plumes, or nylon filaments, without the end or tip of the brush causing potentially traumatic blows, which represent an undesired risk, as still occurs according to the existing prior art.

An orthodontic appliance and associated systems and methods are disclosed herein. In some embodiments, the appliance comprises an anchor configured to be positioned adjacent a patient's teeth, and an arm extending away from and coupled to the anchor. The arm can include a first end portion at the anchor and a second end portion configured to be coupled to a securing member adhered to a tooth of the patient. The second end portion can include a first region and a second region extending from the first region at an angle. When the appliance is positioned adjacent the patient's teeth and secured to the securing member, the first and second regions may inhibit the second end portion from translating and/or rotating relative to the securing member.