Abstract: A shelf for a dental delivery system comprises a shelf member and device mounting locations on the shelf member. The shelf member is shaped to fit within a dental delivery system housing. The shelf member is movable between at least a closed position and an open position. The device mounting locations define locations devices can be coupled. According to another implementation, a dental delivery system comprising a housing defining an interior, at least one connection extending from the housing to a dental handpiece holding area, a removable cover and a shelf member movable between at least open and closed positions is described.

Abstract: A light emitting diode includes an n-type confinement layer, a quantum well active layer formed on the n-type confinement layer, a p-type confinement layer formed on the quantum well active layer, a gallium phosphide-based quantum dot structure formed in the p-type confinement layer, and a GaP-based current spreading layer formed on the GaP-based quantum dot structure. A method of manufacturing the light emitting diode is also provided.

Abstract: A medical support device includes an arm having a drill attached at a tip part of the arm, a first position obtainer obtaining a representative position of the drill attached to the arm, a second position obtainer obtaining a bury start position, and a controller. The controller controls the arm and applies a burying reaction force to the drill in a burying direction, i.e., a direction from the bury start position to an inside of a implant area, when the representative position of the drill obtained by the first position obtainer is at the inside of the implant area relative to the bury start position.

Abstract: A micro machine may be in or less than the micrometer domain. The micro machine may include a micro actuator and a micro shaft coupled to the micro actuator. The micro shaft is operable to be driven by the micro actuator. A tool is coupled to the micro shaft and is operable to perform work in response to at least motion of the micro shaft.

Abstract: A monolithic integrated semiconductor structure includes: A) an Si carrier layer, B) a layer having the composition BxAlyGazNtPv, wherein x=0-0.1, y=0-1, z=0-1, t=0-0.1 and v=0.9-1, C) a relaxation layer having the composition BxAlyGazInuPvSbw, wherein x=0-0.1, y=0-1, z=0-1, u=0-1, v=0-1 and w=0-1, wherein w and/or u is on the side facing toward layer A) or B) smaller than, equal to, or bigger than on the side facing away from layer A) or B) and wherein v=1?w and/or y=1?u?x?z, and D) a group III/V, semiconductor material. The sum of the above stoichiometric indices for all group III elements and for all group V elements are each equal to one.

Abstract: A structure of a high luminance LED and a high luminance LD is provided. The present invention provides a light emitting device containing, on a zinc blend-type BP layer formed on an Si substrate, an AlyInxGazN (y?0, x>0) crystal as a mother crystal maintaining the zinc blend-type crystal structure and In dots having an In concentration higher than that of the AlyInxGazN (y?0, x>0) crystal as the mother crystal.

Abstract: A micro machine may be in or less than the micrometer domain. The micro machine may include a micro actuator and a micro shaft coupled to the micro actuator. The micro shaft is operable to be driven by the micro actuator. A tool is coupled to the micro shaft and is operable to perform work in response to at least motion of the micro shaft.

Abstract: A monolithic integrated semiconductor structure includes: A) an Si carrier layer, B) a layer having the composition BxAlyGazNtPv, wherein x=0?0.1, y=0?1, z=0?1, t=0?0.1 and v=0.9?1, C) a relaxation layer having the composition BxAlyGazInuPvSbw, wherein x=0?0.1, y=0?1, z=0?1, u=0?1, v=0?1 and w=0?1, wherein w and/or u is on the side facing toward layer A) or B) smaller than, equal to, or bigger than on the side facing away from layer A) or B) and wherein v=1?w and/or y=1?u?x?z, and D) a group III/V, semiconductor material. The sum of the above stoichiometric indices for all group III elements and for all group V elements are each equal to one.

Abstract: A radiation generating apparatus and a radiographing apparatus configured to allow a radiation generating unit to be installed at arbitrary positions include an arm configured to support a radiation generating unit that generates radiation, a pillar configured to rotatably support the arm, and a movable base configured to support the pillar and move on a floor surface are provided, and the arm includes an expandable mechanism configured to expand and contract in a longitudinal direction of the arm.

Abstract: A dental handpiece and general implement rack is provided, along with a method of tracking implement use in a patient environment. The rack comprises a housing having a plurality of removable trays therein, the trays being adapted to support a dental implement thereon. Each tray includes a visual indicator that matches a marker placed on an implement being stored in that tray. The tray indicators are utilized to determine which implement has been utilized during the course of the day in order to implement sterilization procedures for only those implements that have been used on patients and are now unsterile. The device and associated method prevent sterilization by autoclave for implements that do not require cleaning, thereby extending their useful life and preventing over-cleaning thereof. The housing is preferably a wall-mountable structure having a hinged lid closure and a ventilated design to prevent moisture capture therein.

Abstract: For easy washing and sterilizing of a holding tray for drill bits used in a dental implant operation, a holding tray X includes a tray main body 1 made of a hard material capable of autoclave sterilizing and holding members 2 made of an elastic material capable of autoclave sterilizing, the tray main body 1 includes holding plates 1b and holding member supporting plates 1c on a back surface of a substrate part 1a having rows of linearly aligned through holes 1aa for drill bits, the holding plates 1b include half circular cylindrical recessed parts 1ba at portions corresponding to the through holes 1aa, the supporting plates 1c have a fixed interval to a plane 1bb along the recessed part 1ba, and the holding members 2 are detachably held between the holding plates 1b and the supporting plates 1c to hold the drill bits together with the recessed parts 1ba.

Abstract: Dispensing assemblies for dental articles such as orthodontic brackets include a supply tube having a generally omega-shaped configuration. The supply tube receives a carrier strip as well as a number of containers that are releasably connected to the carrier strip. A dispenser array includes a plurality of supply tubes that are coupled to a spline by connectors. A dispensing system includes a mechanism for selectively positioning an array of supply tubes in either an upright orientation for storage or alternatively in an inclined orientation for dispensing.

Abstract: Disclosed is a dental utility system for managing dental utilities, including a dental utility housing, a dental delivery assembly base fixed to the front side of the dental utility housing, and a dental delivery assembly main arm horizontally pivotably connected to the dental delivery assembly base and which permits vertical movement of a dental delivery assembly main arm distal end. The dental delivery assembly base and a dental delivery assembly base cover define a dental utility housing utility pathway that directs dental utilities from the dental utility platform to the dental delivery assembly main arm. Also included are a dental utility platform, and a dental utility platform extendable mount. The dental utility platform extendable mount permits the dental utility platform to be positioned anywhere along a continuous range of positions.

Abstract: Disclosed herein is a dental rear delivery unit for providing an increased range of positioning of a doctor's hand piece delivery head and an assistant's instrument work delivery head at a head end of a dental chair.

Abstract: The invention relates to a treatment element which is used to receive dental hand instruments. Said treatment element comprises a base part (1) which is provided with connections (2; 39) and which is used to accommodate the instruments, and a instrument storage place (5; 15). Said treatment element comprises an exchangeable upper part (4; 12).

Abstract: A mixing apparatus has a mixing base on which components of a material, in particular a ceramic material, which are to be kept moist, are to be mixed, and a liquid reservoir and moistening means which communicate with the liquid reservoir and which are arranged and adapted to keep moist components which are to be kept moist, wherein the moistening means include a liquid carrier of an elongate configuration which provides for liquid transport in the longitudinal direction thereof and allows liquid delivery to components which are to be kept moist over the surface of the liquid carrier in transverse relationship with the longitudinal direction and which on the one hand is in communication with the liquid reservoir and which on the other hand adjoins a mixing surface on the mixing base.

Abstract: A portable medical apparatus for holding a plurality of surgical tools wherein at least one of said tools is electrically powered and includes a power supply cord and a power plug is disclosed. The apparatus comprises a housing having at least one electrical outlet for removably receiving the power plug is disposed within said inner shell. The housing includes an upstanding wall having at least one area for receiving and supporting a power supply cord. A removable enclosure lid is received by the housing. An upright member supports the housing and provides a passageway for a conductor in electrical communication with the electrical outlet. A base supports the upright member and includes a laterally extending leg having a channel for receiving the electrical conductor. The leg is apertured to receive a connector for attachment to the electrical conductor.

Abstract: A method of transporting and processing a set of three-dimensional dentition models includes (a) providing a container having an outer shell containing a shock-absorbing core, wherein the core defines a plurality of compartments each configured to hold one model in the set of three-dimensional dentition models; (b) loading each of the dentition models into its respective compartment; (c) transporting the container to a processing site; and (d) processing the dentition models while they are in the container.

Abstract: Packages for dispensing dental appliances of the type used in corrective orthodontic treatments, methods of using such packages, and methods of manufacturing such packages. The package generally includes a holder and drawers containing the dental appliances that are removable from the package. The characteristics of the dental appliances positioned in each individual drawer are appropriate for application to different quadrants of the patient's teeth. The drawers of the package may be color coded with regions on a setup card so that the dental appliances, while remaining positioned in the drawers, may be organized among the regions according to the intended quadrants for bracket application. Other color coding schemes are possible involving the drawers, the brackets held by the drawers, the setup card, and the brackets themselves.

Abstract: An interocclusal sports prophylaxis includes a core having an arch shaped occlusal plate with upwardly extending buccal and lingual walls. A labial force dispersal shield and molar framing braces extend downwardly from the plate at incisor and lingual zones of the plate. The occlusal plate is thickened at the molar and incisor zones so that breathing spaces are provided between mandibular occlusal surfaces not registered with the zones and a mandibular face of the plate. A shock absorption dentition encasement is molded over the upper surface of the core and also covers the molar and incisor zones. The prophylaxis is heated in water, seated in the mouth and then biting pressure is applied to embed the maxillary dentition in the encasement and the lower incisor and molar occlusal surfaces in the encasement covering the zones.

Abstract: A system for reconfigurably adapting a dental chair for use, including, e.g., use from the right side or left side, use by right-handed or left-handed practitioners and use in various dentistry practice styles, may include a link arm, a primary arm and a secondary arm. The link arm is pivotably connectible to a rear side of the dental chair. The primary arm is pivotably connectible to the link arm to swing in a generally horizontal plane about a generally vertical axis. The secondary arm is coupleable to the link arm, preferably along substantially the same axis. The secondary arm has multiple pivotably connected segments allowing its distal end to be positioned as desired.

Abstract: A dental unit comprises at least one chair, a base, positioned next to the chair and mounting a handpiece tray. The tray is equipped with a plurality of operative or auxiliary handpieces for dental operations of traditional conservative type and/or for implants. At least one of the handpieces is fitted with a drive unit consisting of a brushless micromotor presenting a unit for continuously controlling the speed of the brushless micromotor according to parameters that depend on the type of application, that is, traditional, conservative type operations or implants.

Abstract: A workbench for dental prostheses is disclosed comprising: a working table leaning on a support frame; a couple of arm resting appendages projecting from the table to an operator; a drawer slidably inserted into the frame and provided with arm resting outlines; a suction unit to collect the working residues of the prosthesis, arranged between the arm resting appendages and comprising a shaped bracket protruding to the operator and provided with a through opening communicating with a suction tube. The shaped bracket is coupled to the suction tube through connecting means allowing the rotate the shaped bracket along a generally vertical axis.

Abstract: A stacked layer structure including a single crystal substrate; an amorphous or polycrystalline buffer layer formed from a boron-containing Group III-V compound semiconductor. The buffer layer is provided on the substrate; a cladding layer formed from a boron-containing Group III-V compound semiconductor is provided on the buffer layer; and a light-emitting layer having a quantum well structure including a barrier layer formed from a boron-containing Group III-V compound semiconductor and a well layer formed from a Group III nitride semiconductor is provided on the cladding layer. The barrier layer is formed from a boron-containing Group III-V compound semiconductor having the same lattice constant as a boron-containing Group III-V compound semiconductor constituting the cladding layer.

Abstract: A dental treatment system which can include at least one dental bracket table; at least one portable base unit; and at least one suspension device coupled between the at least one dental bracket table and the at least one portable base unit, the at least one suspension device structured to allow a dental patient chair to be positioned substantially below the at least one dental bracket table. A dental treatment system which can include a portable enclosure structured to support at least one dental operatory component, the portable enclosure having at least one quick-release access panel. A method which can include coupling a suspension device between at least one dental bracket table and at least one portable base unit, the suspension device structured to allow a dental patient chair to be positioned substantially below the at least one dental bracket table.

Abstract: The invention is directed towards a handpiece assembly for use with air abrasion apparatuses used in a wide spectrum of applications and industries. This handpiece assembly comprises the following components: (1) a handle comprising a proximal end and a distal end; the distal end also comprising an attachment means for attaching the handle of the handpiece assembly to the air abrasion apparatus; (2) a quick-releasing and quick-connecting socket comprising a male portion and a female portion; and (3) a nozzle comprising a proximal end and a distal end; the distal end of the nozzle provides the male portion of the socket and the proximal end of the handle provides the female portion of the socket. The distal end of the nozzle also fits into the proximal end of the handle to form the quick-releasing and quick connecting socket. This novel handpiece assembly may further comprise an articulating socket located towards the proximal end of the nozzle.

Abstract: A method of mounting tools used in dentistry, the tools having flexible tubes associated with instruments remote from the tools, in which a redirector bar is mounted to a bottom surface of a bench top between tool receiving brackets and the instruments so as to support the tubes and define a forward loop and a rearward loop. The tubes in the rearward loop are parallel while the tubes in the forward loop converge when they are extended to the mouth of a patient. Preferably, the tool receiving brackets are supported on the forward edge of a bench top which is slidably mounted for movement in a direction which is parallel to the rearward loop.

Abstract: A dryer for drying dental models includes a solid base member, a top member, a variable plurality of modular drying units, each of which includes a frame and a slidable, foraminous tray, an air blower and an articulated support arm. In use, the modular drying units are positioned in an over-and-under stacked relation, such that the slidable trays therein form a column of trays. Each slidable tray contains a central aperture and a duct extending upward from the perimeter of the central aperture. The aperture and duct in the center of each tray collectively form a channel running through the center of the column of trays. The base member is fixedly connected to the articulated support arm, which supports the dryer. The top member, which is positioned on top of the uppermost modular drying unit, includes a central aperture with an inlet tube inserted therein and exhaust vents around the perimeter of its top surface for the release of air.

Abstract: The present invention relates to a storage box for dental equipment, comprising a box and a cover which are joined together with pivotal parts; a chute is made on the box and laid with a plurality of check plates; along the close end the check plate, has a plurality of hopper type slots interweaving with the check plates; the slots may hold the drilling/filing needles which are separated by these check plates, and head end of each needle is projecting over the check plate in facility of chucking up the needle with the clip; the open end of the cover may receive the contact side of the notch, when the cover is open from the box it may be turned to the bottom of the box and holding up the back of the box so that the box may be leaning inclined upon the notch of the cover to ensure that drilling/filing needles are securely placed in the box.

Abstract: A telescopic arm assembly for use in conjunction with a dental chair unit and attachable to a post of the unit. A main arm defines a slot at its inner end to receive an arm support including a pivot pin about which the arm may move in an upright manner. A limit stop on the support controls arm movement. A secondary arm supports a tool holder at its outer end and is provided with pin-shaped followers at its inner end which ride along guides extending lengthwise of the main arm to prevent rotation of the secondary arm within the main arm.

Abstract: A case for dental instrument including a container, a lid for closing the container, a tray, and an insert arranged alongside of the container and including an instrument-receiving unit having a holder and a carrier and pivotable between a folded down position and an opened, vertical position, axle elements for supporting the instrument-receiving unit for pivotal movement, and elements for releasably holding the instrument-receiving unit in the opened position, with the carrier being provided with instrument-receiving insert openings and the holder being provided with stop arms for retaining the instruments in the insert openings.

Abstract: Clearance in the seat base to which a post is pivotally mounted provides for wide-angle rotation of post-mounted equipment that is supported by the post that is mounted to the base. The location of the pivot axis is such that the mechanisms employed for pivotally mounting the equipment to a dental chair do not protrude from the back of the chair.

Abstract: The present invention is a device which can be portable and easily attachable and removable from existing dental work station tables. The apparatus comprises a work platform which can be removably connected to the work station table. A suction tube at the work station can communicate with the surface of the work platform. The suction tube can easily be connected and disconnected from the work platform for use in treating the patient, such as providing mouth suction. The apparatus preferably is supported by a mounting means on the work table with the work platform preferably horizontal. Preferably the platform is supported by a support means through which it is attached by the mounting means to the table. The work platform thereby provides both support for the article being worked on and suction to remove debris.

Abstract: A dental dispensing tray has a plurality of wells formed in a substrate, along with a cover that is slidably attached to the substrate. The cover transmits at least a portion of the visible light spectrum but does not transmit a substantial portion of actinic radiation that might otherwise prematurely cure photocurable material in the wells.

Abstract: A station assembly for use with a patient chair is disclosed. The station assembly includes a mounting bracket which can be attached to the patient chair. A first station arm and a second station arm are pivotally mounted to the mounting bracket such that they have nested translational paths when pivoted. Instrument stations are mounted to the station arms such that either station can be brought to either side of the patient chair by pivoting the station arms.

Abstract: A cassette for the sterilization and storage of dental or medical instruments includes a lower tray and an upper cover hingeably joined together for pivotal movement between an open position and a closed position. Both the tray and the cover have instrument positioning racks mounted therein to position the instruments in side-by-side relation within the tray and the cover. The cover is provided with an instrument retainer for simultaneously retaining the instruments in the positioning racks in the tray and the cover when the cassette is in the closed position. The instrument retainer includes an instrument retaining bar pivotally mounted at one end thereof within the cover and releasably fastened at the other end thereof to the cover. A resilient retaining member is mounted on the retaining bar and transversely pressingly contacts the instruments to retain them in the positioning racks.

Abstract: A device for use in a dental or medical application to obtain three-dimensional contour information comprises a multiplicity of arm segments, first mounting elements for connecting the arm segments to one another to form an articulated assembly of the arm segments. A second mounting element serves to fix the articulated assembly relative to a person's head, while a third mounting element is provided for attaching a diagnostic or medical treatment instrument to the articulated assembly at a point spaced from the second mounting element. A feedback component or components are operatively coupled with at least some of the arm segments for providing electrical signal feedback data as to positions of the arm segments relative to one another, thereby providing information as to the position of the instrument relative to the person's head.

Abstract: A dental instrument deposit table includes a base member, which has an arrangement for mounting it, and a cover unit which unit includes a deposit surface for receiving the instruments and holders for receiving handpieces, such as handpieces having hoses and handpieces having cables secured thereto. The cover unit is removably mounted on the base member, which, preferably, has a catch member for grasping a rear edge of the cover member and a catch hook for engaging a front lower edge of the cover member to hold the cover member on the base member. Handles are preferably provided on the cover member, which handles can be used for positioning the instrument deposit table.

Abstract: A dental control unit of the kind pivotally mounted on a swinging arm and having a support base for operatory equipment and a housing covering said equipment and base includes a pair of fully interchangeable handles, releasable mounted to the bottom of the base and means on the top of the base to lock the handles to the bottom of the base with the handles being selectively locked in place and released by movement of finger tabs projecting through the base by an operator grasping the handles beneath the base.

Abstract: A dental handpiece holder adapted such that the length of the handpiece holder for holding and accommodating a dental handpiece is shortened in the axial direction, whereby the main unit of the handpiece can be attached to and detached from the joint section of the handpiece for the purpose of replacement with one hand of an operator. Also a dental treatment assembly by use of the holder.The handpiece holder comprising a gutter-shaped receiving seat, first and second grip sections extending from both side fringes of the receiving seat, contact sections formed at the leading ends of the first and second grip sections respectively and an engagement groove or projection extending across the contact sections or the peripheral areas thereof in the internal circumferential direction of the grip sections.

Abstract: A dental handpiece holder adapted such that the length of the handpiece holder for holding and accommodating a dental handpiece is shortened in the axial direction, whereby the main unit of the handpiece can be attached to and detached from the joint section of the handpiece for the purpose of replacement with one hand of an operator. Also a dental treatment assembly by use of the holder.The handpiece holder comprising a gutter-shaped receiving seat, first and second grip sections extending from both side fringes of the receiving seat, contact sections formed at the leading ends of the first and second grip sections respectively and an engagement groove or projection extending across the contact sections or the peripheral areas thereof in the internal circumferential direction of the grip sections.

Abstract: A tool holder for mounting on the instrument panel in a dentist's office contains a grooved surface for receiving one or more syringe or scalpel or other implement holders. These holders have hexagonal bases for mounting in one of several different positions. A novel syringe holder employs a tapered threaded member for gripping the protective cover on the needle so that the cover can serve as the syringe holder.

Abstract: A dental instrument shield for shielding medical or dental instruments, as well as industrial tools and equipment, which, due to position and configuration, may accidentally pierce or contact tissue and cause injury. In a preferred embodiment the dental instrument shield includes a curved, transparent, protective guard adjustably supported on parallel support rods mounted on an instrument support bar which is attached to a console or other supporting surface. An instrument tray may be mounted in adjustable relationship on the curved guard and the guard is designed to extend over the various handpieces containing dental instruments, to prevent accidental contact with the dental instruments. The various handpieces are typically removably supported in handpiece receptacles of various design for convenient access.

Abstract: A swing arm for supporting a saliva suction pump nozzle which can be maneuvered by an operator without an assistant, consisting of an upper arm and forearm made of lengths of pipe and connected together by a pivotal joint like an elbow, with cables and hose which pass through the forearm and the upper arm being stowed under the surface of the forearm and the upper arm except for the area of said the joint, a vertical part of the upper arm being inserted revolvably in a shaft-supporting holder in the form of a cut of pipe fixed on a pole of a dental chair unit by a two part band, with a saliva suction pump nozzle being fixed on the free end of the suction pump hose at the free end of the forearm.

Abstract: Dental teaching and practicing apparatus for the simulation and practice of dental-clinical working or operating procedures, such as are generally employed for the education and training of dentists and their assistants. The apparatus which represents or incorporates a patient-simulator can be individually positioned, especially with consideration being given to limited space or place conditions, whereby during non-use thereof the apparatus can be brought into a space-saving stored position, and can also be set up in such a manner that within an unchanged assembly, it is comfortable for either a right-handed or left-handed person.

Abstract: A portable dental apparatus. A main housing includes a plurality of wheels mounted therebeneath. A control panel on the main housing includes a variety of controls for operating a plurality of dental tools removably and suspendedly mounted to a holder in turn movably mounted to the main housing. A storage cavity formed in the housing allows storage of the holder and tools when the portable dental apparatus is in a transport state. The tools are connected by a plurality of lines to a plurality of drive and power components located in the interior of the main housing. A lid hingedly mounted atop the control panel may be opened revealing the controls for the tools. An X-ray display screen and amalgamator are provided respectively on the lid and control panel.

Abstract: A dental tray handle protective covering, shield or prophylactic comprised of a thin, tear-resistant, semi-rigid but elastic material which is disposable for providing a covering or barrier for the entirety of each of several different types of dental tray which will significantly reduce and/or prevent the spread of disease through the continued touching of the dental tray handle by non-sterile gloved or ungloved hands of dental practitioners and others.

Abstract: An apparatus for assisting a podiatrist in the performance of various para-medical operations on patients. The apparatus consists of a unit movble on the ground as if a dental unit used by dentists. The work unit includes a pneumatic network, connected to an external air compressor, and to which is connected three tools. Two of these tools include drilling heads, pressurized water outlets and pressurized air outlets, while the third tool includes a pressurized water outlet and pressurized air outlet. Operation of each tool, and of each outlet and drill of a given tool, is made independently of each other, and controlled by a number of knobs, buttons and dials.

Abstract: A mixing device for molding compositions for use in dentistry has a housing into which and from which a trough plate and the underlying tray can be displaced like a drawer. A mat of bibulous material substantially completely fills the tray beneath the trough plate and delivers water in a controlled manner through passages traversing the trough plate and leading to the troughs. A vessel containing the moisturizing liquid is placed on the housing and is connected by a conduit with the tray, the conduit including a valve for controlling flow to the tray.