Abstract: An abutment is provided with a screw access hole and a slot in its sidewall adapted to allow a driver to access a screw in the screw access hole at an angle relative to a longitudinal axis of the screw. The abutment may include a screw seat and may be connected to an implant via a screw in the screw seat. A prosthesis, which may include a driver access channel that has a diameter less than the outer diameter of the drive portion of the screw, may be placed over the abutment. Methods of making a dental prosthesis and methods of attaching and removing the dental prosthesis from the implant are also disclosed.

Abstract: A drill guide assembly used to guide a drill into the jawbone of a patient during dental surgery includes at least one through going guide bore for guiding the drill, at least one attachment for securing a part of the drill guide assembly to the jaw of the patient during surgery, wherein the drill guide assembly includes a first part including the at least one first through going guide bore, the at least one first attachment and at least a first reference area for referring the first part to a first anatomical feature of the patient, a second part including a second reference area for referring the second part to a second anatomical feature of the patient, and a guiding structure for guiding the first part and the second into a desired configuration.

Abstract: The present disclosure provides methods, computing device readable medium, devices, and systems having a dental attachment formation structure. One dental attachment formation apparatus includes a body having a first surface shaped to conform to the contours of an exterior surface of a tooth and including a portion of the first surface shaped to accommodate an attachment that is to be attached to the exterior surface of the tooth and a light source attachment structure for attachment of a light source to the body.

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 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: Provided is a dental file with excellent flexibility, cutting performance, and fracture resistance. The dental file (10) of the present invention has a spiral working portion (11) of which cross sections become smaller toward a tip end. At least one of shapes of the cross sections of the working portion (11) is a substantially rectangular shape formed of a single arc (40) and three lines (41, 42, 43), Two points of four points at four corners of the substantially rectangular shape are arranged on a virtual circle (50), which includes the arc (40) as part thereof. The other two points are arranged inside the virtual circle (50). The center position of the virtual circle (50) is inside the substantially rectangular shape. A shortest one of lengths of perpendicular lines each extending from the center position of the virtual circle (50) including the arc (40) as part thereof to the three lines (41, 42, 43) is equal to or greater than 45% and equal to or less than 65% of the radius of the virtual circle (50).

Abstract: In one aspect an appliance includes a plurality of discrete shell segments, each including one or more cavities shaped to receive at least portions of teeth. The discrete shell segments are joined by an elastic material to form a single appliance shell.

Abstract: A method of whitening teeth. The method may include delivering a buffer solution from a reservoir of a toothbrush to one or more tooth cleaning elements of the toothbrush; applying a toothpaste containing a peroxide to the tooth cleaning elements, the toothpaste having a first pH; and brushing the teeth with the tooth cleaning elements, thereby mixing the buffer solution and the toothpaste to form, at surfaces of the teeth, a tooth whitening mixture having a second pH that is greater than the first pH.

Abstract: An elastic matrix system for use during a dental restoration process is provided. In one embodiment, among others, the matrix system may include a restoration band having an elongated body between a first end and a second end. The restoration band comprises a top edge and a bottom edge. The matrix system also includes an upper circular rim of elastic material that has a first channel. The top edge of the restoration band is positioned in the first channel, and the restoration band expands and contracts a circumference of the matrix system along the first channel as the upper circular rim is manipulated. The matrix system also includes a lower circular rim of elastic material that has a second channel. The elastic sleeve attaches the upper circular rim to lower circular rim.

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: The present invention relates to orthodontic brackets designed for use with the deciduous teeth and method for its use. The brackets provide one or more debonding tabs which reduces the potential for damage to the deciduous tooth due to the application of excessive force during the debonding process. The small size of the brackets allow the brackets to fit available crown space on the deciduous teeth. Further the brackets are shaped to minimize mechanical forces applied to the deciduous teeth when engaged with an archwire. The bracket bases are shaped to conform to the morphology of the deciduous tooth crown surface thereby providing an optimal adhesive interface with the deciduous tooth. The deciduous brackets provide proper adhesion to avoid unwanted detachment of the brackets which often occurs when the use of permanent brackets is attempted on the deciduous teeth.

Abstract: An acquisition kit, including: a mouthpiece intended for being placed into the mouth of a patient and including a reference mark; and an image-acquisition apparatus including a screen for viewing an image that can be acquired, computer memory containing information on target acquisition conditions, and a computer program comprising program code instructions for displaying on said screen a reference in a position such that, when the reference mark matches the reference on the screen, the acquisition apparatus complies with the target acquisition conditions.

Abstract: A method for producing a tooth replacement part to be secured on an implant, based on a 3D model of the tooth replacement part with a surface and with a continuous screw channel with an initial shape in the form of a cylindrical barrel, with a first and a second end, wherein a cross sectional area of the screw channel is designed to be constant and/or to increase in size towards the second end of the screw channel. A 3D model of an inlay with a jacket surface, an upper face and a lower face is generated. A part of the surface of the 3D model of the tooth replacement part that is cut out through the second end of the final shape of the screw channel is used as the upper face and the jacket surface is configured as a negative form of a part of the final shape of the screw channel that adjoins the second end.

Abstract: An oral fluid delivery device is described. The device includes a housing forming at least one cavity. The cavity includes at least two reservoirs, a first reservoir and a second reservoir. The device also includes an elongated neck with a distal end having at least one distal opening for passage of a fluid, a proximal end, and a channel fluidly connected to the distal opening. The device also includes a cap at the proximal end of the elongated neck. The cap includes at least one aperture aligned with the channel of the elongated neck and is rotatably coupled to the housing such that rotating the cap relative to the housing selectively aligns the aperture with a first reservoir opening to provide fluid communication between the first reservoir and the channel, or aligns the aperture with a second reservoir opening to provide fluid communication between the second reservoir and the channel.

Abstract: A method of manufacturing a layered denture in which the enamel layer or the tooth layer is manufactured first and the denture base is manufactured last. The resulting denture may exhibit an enamel layer or a tooth layer with enhanced strength and/or resiliency. The resulting denture may have one or more of an integrated layer, balanced occlusion, and a root approximating structure.

Abstract: A smart lighting system for applying light to teeth in the context of tooth whitening and teeth that have been provided with a light-curable whitening varnish. The system includes a light-generating unit, a light-patterning unit, a mouth imaging unit, a mouth image sensing unit, and an image processing and control unit, and is adapted so as to allow the image processing and control unit to adjust the light-patterning unit on the basis of information obtained from the mouth image sensing unit. By doing so, prior to allowing the light-generating unit to emit light, it can be ensured that light emitted to assist tooth whitening, does not affect soft tissue.

Abstract: A hand-held surgical device, particularly for use in oral surgery, includes a rotatable tool, a head of the tool having a hollow-cylindrical design, and an active region, particularly for machining bones, being arranged at a distal edge of the head. A protection device is arranged which partially surrounds the distal edge of the tool and in some sections extends in the axial direction beyond the distal edge such that only a circular arc of the distal edge serves as the active region. The protection device may have a connecting element for detachably securing to the hand-held surgical device.

Abstract: An orthodontic device and, in particular, an orthodontic bracket that is slidable along a wire without external forces is provided. The device may include a first and second gear, each of which are independently movable between a locked position in which the gear is prevented from rotation, and a released configuration in which the gear extends into the channel to engage a wire received within the channel and is rotatable to move the device along the wire. The first gear may be rotatable to move the device in a first direction while the second gear may be rotatable to move the device in a second direction opposite the first direction. Thus, the first and second gears have the ability to move along the wire in short or long distances, as desired.

Abstract: A cemented dental crown removal system is provided having a base implant, an abutment, and a dental crown having a passageway with a sleeve with one or more female threads. The sleeve is in juxtaposition to the abutment. The sleeve accommodates a fastener element or a tool having one or more male threads that are positioned against the abutment. A method of removing a cemented dental crown is provided.

Abstract: A device for correcting misaligned teeth, the device including an arc element; and at least two transmission elements, wherein each of the at least two transmission elements is configured to cooperate with a respective tooth surface and includes a respective coupling portion wherein each of the at least two transmission elements is connected or connectable in the respective coupling portion with the respective arc element in a force transmitting manner, wherein the arc element has an overall parabolic cambered shape that is adapted to a lower jaw or an upper jaw of a patient, wherein the arc element includes at least one activation section which is arranged between two adjacent transmission elements of the at least two transmission elements and configured so that the arc element is at least locally elastically deformed in an installed condition of the device.