Abstract: A dental appliance includes an attachment mechanism suited to attach the appliance on the teeth of a patient's upper jaw. The appliance includes a constraining mechanism linked to the attachment mechanism, where the constraining mechanism is suited to limit the movement of a central zone of the tongue and allow the anterior and lateral edges of the patient's tongue to perform movements necessary for speech and swallowing.

Abstract: A dental prosthesis system, for the use with at least two dental implants, wherein the dental prosthesis is divided in a first prosthetic part and a second prosthetic part, jointed by a prosthetic screw, and wherein the first prosthetic part is connected to the dental implants through at least two connectors, and such dental prosthesis has an engaging and guidance system, including two female elements, disposed on the top of the first prosthetic part, and two corresponding male elements, disposed on the bottom of the second prosthetic part, whereby the connection between the two female elements and the two male elements is releasable.

Abstract: A tooth implant system has an upper abutment, a lower abutment, a crown, and an elastic member securely placed between the upper abutment and the lower abutment providing softer and elastic, yet resilient, cushion between the upper abutment and the lower abutment. To better affix the elastic member within the tooth implant system, a ring lock may be used, securely placed in a ring-lock groove located on the lower abutment section. An insertion of a screw deeper into the lower abutment receptacle pushes the ring lock-groove and the ring lock outwardly to force the elastic member against an inner chamber wall of the upper abutment and into the abutment groove to better securely affix the elastic member.

Abstract: Apparatus and methods for endodontic treatment of teeth provide effective cleaning of organic material (such as pulp and diseased tissue) from the root canal system. In an embodiment, a compressor system generates high pressure liquid (e.g., water) that flows through an orifice to produce a high-velocity collimated jet of liquid. The high-velocity jet is directed toward a surface of a tooth, for example, an exposed dentinal surface, and impingement of the jet onto the surface generates an acoustic wave that propagates throughout the tooth. The acoustic wave effectively detaches organic material from dentinal surfaces and tubules. The detached organic material is flushed from the root canal system by the liquid jet and/or by additional irrigation.

Abstract: An articulator having a maxillary member and a mandibular member, which are connected to each other via condylar articulations, wherein a maxillary adaptor is attachable or attached at the maxillary member and a mandibular adaptor at the mandibular member, wherein a maxillary alignment member especially is form-fittingly connected to the maxillary adaptor and a mandibular alignment member is especially form-fittingly connected with the mandibular adaptor, and wherein the alignment members are automatically alignable to each other and comprising scanning members, by means of which the arrangement of alignment members and adaptors is scannable in a scanner and especially the relative position thereof moreover is detectable in relation to the articulator via the scanner.

Abstract: Disclosed is a method of manufacturing a digital overdenture to improve manufacturing convenience and preciseness. The method of manufacturing the digital overdenture according to the present invention includes a series of operations such as generating a planning image, manufacturing auxiliary devices for manufacturing the overdenture such as a surgical guide, a flattening guide, an impression model, and the like, setting a holder device and correcting a temporary denture, obtaining a corrected-scanned image, and designing and manufacturing a digital overdenture.

Abstract: Provided is a dental file exhibiting high performance and having high flexibility and excellent root canal followability. A dental file (10) of the present invention includes a working portion (11) in a spiral shape. An outer edge of the sectional shape of the working portion (11) at any position includes a single arc (40) and three or more lines (41, 42, 43). One end of the arc (40) forms a first cutting blade. The three or more lines (41, 42, 43) are positioned inside a virtual circle (50) partially including the arc (40). The length of the arc (40) may be equal to or greater than 1/12 and equal to or less than ? of the circumferential length of the virtual circle (50), or a second cutting blade (16) may be further provided inside the virtual circle (50).

Abstract: Orthodontic appliances and associated methods are provided. In some embodiments, an orthodontic appliance includes an appliance shell configured to reposition a patient's teeth from a first arrangement toward a second arrangement. The appliance shell can include a plurality of shell segments, each shell segment including a first material having a first elastic modulus. The appliance shell can also include a plurality of elastic segments, each elastic segment including a second material having a second elastic modulus less than the first elastic modulus. Each elastic segment can be coupled to a respective adjacent pair of shell segments.

Abstract: A dental file includes a working portion having a spiral shape, wherein a cross section perpendicular to a longitudinal direction of the working portion has a trapezoidal shape including an upper bottom, a lower bottom, and first and second oblique sides, vertexes at both ends of the lower bottom are located on an imaginary circle having a center at an axis in the longitudinal direction of the working portion, vertexes at both ends of the upper bottom are located inside the imaginary circle, and the imaginary circle has a diameter decreasing from a base end portion toward a leading end portion of the working portion.

Abstract: To reliably follow a tip end portion of a root canal and prevent biting into a root canal wall. A dental root canal treatment tool includes a shaft portion (A), a transition portion (D) formed continuously to the shaft portion, and a working portion (B) formed continuously to the transition portion. The working portion is formed in such a tapered shape that the working portion is narrowed from the transition portion to a tip end. A cross section (IIa) of the working portion closest to a shaft portion side is in a parallelogram shape having a pair of opposing long sides (1a), a pair of opposing short sides (2a), sharp edges (5a) formed on a long diagonal line (3a), and obtuse edge (6a) formed on a short diagonal line (4a).

Abstract: The present disclosure relates to scan gauges, a kit of scan gauges, and methods for facilitating the acquisition of a scan during an intraoral scanning procedure using an intraoral scanner, including: an elongate body having an attachment portion configured to attach the elongate body with an implant in a patient's mouth, the implant having a longitudinal axis, whereby the elongate body is adapted to extend substantially perpendicular to the longitudinal axis of the implant when mounted to the implant; the elongate body having a substantially planar upper surface and one or more side walls extending downwardly away from the upper surface; wherein the upper surface and the one or more side walls are observable in a resulting scan when the intraoral scanner scans the apparatus in a direction perpendicular to the upper surface.

Abstract: Aligners and orthodontic systems are provided. In some embodiments, an aligner includes a polymeric shell including a plurality of tooth-receiving cavities, an interior layer, and an exterior layer. The exterior layer can comprise a discontinuity formed therein. When the aligner is worn on a patient's teeth, the interior layer can interact with the discontinuity to impart one or more forces to facilitate repositioning of the patient's teeth.

Abstract: This disclosure relates to various systems and methods related to preventative laser-based treatment of a dental tissue; for example, to prevent a patient from forming cavities. In some instances, a laser-based treatment system can generate a laser beam pulse with a fluence profile at a treatment site that results in either an increase in acid resistance of the tissue or removal of carbonate from the tissue, without melting or ablating the tissue. In some instances, the laser-based treatment system can direct the laser beam to various locations within a treatment site according to a temporal and/or spatial pattern, that results in either an increase in acid resistance of the tissue or removal of carbonate from the tissue, without melting or ablating the tissue. Many other systems and techniques for preventative and other laser-based treatment are also described.

Abstract: The present disclosure relates to an apparatus of attaching a dental component having an angulated screw channel to a dental implant. The present disclosure also relates to a dental component having an angulated screw channel and a metal adapter.

Abstract: A dental technology kit for coupling a dental prosthesis to a bone tissue includes at least one shell that defines a compartment that can be associated with a protruding head of a pin that can be anchored, directly or indirectly, to the bone tissue. The kit further includes at least one containment unit, which can be stably inserted into a complementarily-shaped recess that can be provided in the prosthesis, and an intermediate container defining internally a receptacle of shape at least partially complementary to the shell. The container is accommodatable in an at least partially complementarily-shaped chamber provided in the containment unit until a mating configuration is defined, in which at least one curved surface hump of the container, accommodated in the chamber, is arranged in contact with at least one complementarily-shaped curved surface region of the unit.

Abstract: A dental superstructure securable to a protruding dental abutment, related assembly and method of design are provided. The dental superstructure is designed to mimick a tooth and is perforated to create a drop-shaped screw conduit for screw insertion and advancement. The screw conduit includes an insertion portion extending substantially conically outwardly from an inlet to enable advancement of an inserted screw along an insertion axis and a spherical angulation portion extending from and communicating with the insertion portion to allow angulation of the screw from the insertion axis to an implant axis. Buccal and/or lingual contours of the screw conduit may be respectively arched outwardly and inwardly from the insertion axis to adapt to screw advancement needs. The dental superstructure may be part of an assembly for a dental implant in combination with an osseointegrable implant including the protruding dental abutment; and a dental abutment screw.

Abstract: An aerosol deflecting dental shield and containment device having a cylindrical base with a lower free end and with a base sidewall having an inner surface enclosing and defining a base channel base channel defining a base channel diameter and with an HVE adapted to be inserted therein. The device also includes a circular base platform radially extending outwardly from the base channel, a deflecting member coupled to the circular base platform, with an outer surface opposing the lower free end, of an elastic polymeric material, defining an intake aperture fluidly coupled to the base channel, and defining a deflection diameter of a length at least twice a length of the base channel diameter, and a cantilevered tooth rest member projecting from the outer surface of the deflecting member, having a spherical apex disposed at a distal end thereon, and of an elastic polymeric material.

Abstract: Embodiments include dental appliances, dental appliance systems, and methods of making and using such appliances. In one embodiment, a dental appliance to implement a stage of a treatment plan includes a number of tooth-receiving cavities configured to receive and resiliently reposition teeth on a first jaw from a first arrangement toward a second arrangement and at least one tab. The at least one tab can include a mesial end coupled to at least one of the number of tooth receiving cavities, a distal end defining a distal end of the dental appliance, an exterior surface configured to mate with an opposing dental appliance on a second jaw or an opposing tooth on the second jaw, the second jaw opposing the first jaw, and an interior surface opposite to the exterior surface, the interior surface configured to receive a coronal surface of an erupting tooth and manage eruption of the erupting tooth during the stage of the treatment plan.

Abstract: A bone foundation guide system has a bone foundation guide including a body that is contoured to reversibly affix to a bone segment of a dental implant surgical site. The body is further contoured to guide the cutting of a portion of the bone segment from a dental implant surgical site and alternatively support a dental implant surgical guide. The body is further contoured to support a bone foundation guide prosthesis as an alternative to the dental implant surgical guide. The bone foundation guide prosthesis combines with the body to accommodate the bone segment portion as placed through the body prior to the bone segment portion being removed from the dental implant site through the use of the body.

Abstract: A dental separator device includes an elastic body having a first end and a second end. A first surface engager is connected to the first end of the body. The first surface engager includes a first distal section and a first mesial section and a notch between the first distal section and the first mesial section. The first distal section and the first mesial section each include a pair of spaced apart hands. A second surface engager is connected to the second end of the body. The second surface engager includes a second distal section and a second mesial section, and a notch between the second distal section and the second mesial section. The second distal section and the second mesial section each include a pair of spaced apart hands. The hands are for engaging teeth and/or for creating adaptation pressure on a dental matrix stabilizer and/or dental matrix.