An osteotome is shaped so as to define (a) a lumen through the osteotome, a distal end of the lumen opening through a distal opening disposed within 10 mm of a distal end of the osteotome, and a proximal end of the lumen opening through a proximal opening disposed at least 5 mm proximal to the distal opening, (b) a lateral external surface, at least a portion of which is shaped so as to define a screw thread that (i) has a distal thread end that is disposed within 10 mm of the distal end of the osteotome, and (ii) comprises one or more raised helical ribs going around the osteotome, and (c) one or more longitudinal drainage slots, which extend along at least respective longitudinal portions of the osteotome having respective longitudinal lengths of at least 5 mm, measured parallel to a central longitudinal axis of the osteotome.

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.

A dental cleaning appliance includes a handle, a fluid reservoir for storing a working fluid, a fluid delivery system for receiving working fluid from the fluid reservoir, and for delivering a burst of working fluid to the teeth of a user, and an external collar comprising a fluid port, the collar being moveable relative to the handle between a first position in which the fluid port is exposed to allow the fluid reservoir to be replenished, and a second position in which the fluid port is occluded.

The appliance (10, FIG. 1) includes a body portion (27) and a nozzle portion (30) through which a spray of liquid droplets exits from a distal end thereof for cleaning of dental regions. The nozzle includes an orifice (36) at a proximal end thereof adjacent the body portion, as well as a pump (38) for moving liquid into an area of the nozzle just forward of the orifice. A mechanical system (12, 13, 14) is provided for moving a plunger or piston element (16) first away from the orifice under tension, such as a compression spring (24), and then controllably releasing the plunger or piston toward the orifice, the plunger/piston moving with sufficient force that atmospheric air which has been drawn into the appliance between the plunger or piston is forced through the orifice at a sufficiently high rate of speed to produce a spray of fluid droplets for dental cleaning when the moving air comes into contact with the liquid in the nozzle.

The invention relates to a surgical bone-drilling device (1) comprising a drill (3) connected to a drive (2), a container (4) for a coolant (5), at least one pump (6) for delivering the coolant (5), a first conduit (7) for delivering the coolant (5) from the container (4) into the interior of the drill (3), and a second conduit (8) for delivering the coolant (5) from the container (4) to the outside of the drill (3), and also a handpiece (19), a drill guide (20), and a cooling method for such a bone-drilling device (1). To improve the cooling action, a measuring device (9) is provided for detecting the drilling depth (d) of the drill (3), which measuring device (9) is connected to a control device (10) for controlling transport of the coolant (5), such that the quality of the coolant (5) in the first conduit (7) and in the second conduit (8) can be controlled as a function of the drilling depth (d) of the drill (3).

Autonomous oral cleaner, comprising a head (4) with a cleaning element (4a), a container (2) container of a liquid cleaning fluid, and means to carry the liquid fluid from the interior space of the container (2) to the cleaning element (4a) in which a manual air pressure device (5) participates, whose activation increases the pressure of the liquid fluid contained inside the container (2); characterized by: it comprises a single whole set (1) consisting of a first module (1a) that includes the head (4) with the cleaning element (4a), and a second module (1b) that includes the container (2); where said fluid is moved from the container (2) to the cleaning element (4a) through a longitudinal conduit (3) that connects the container (2) with the inside of the head (4) and the cleaning element (4a); and where said longitudinal conduit (3) crosses the manual pressure device (5) and the head (4) in coincidence with an imaginary coaxial axis (22) of the first (1a) and second (1b) modules; the first (1a) and the second (1b) modules of the whole set (1) have longitudinal and coaxial mobility relative to each other to move the fluid from the container (2) to the cleaning element (4a); where when moving the first module (1a) with respect to the second module (1b) the manual pressure device (5) is activated; It also includes a passage and closure fluid valve (13) that is located within the first module (1a); where said valve (13) is associated with an activation button (14), which is configured to be able to place the valve (13) in a position selected between a position of passage of the liquid fluid towards the cleaning element (4a) and a closing position of the liquid fluid; and where the aforementioned valve (13) is interspersed in the longitudinal conduit (3).

Disclosed is a method of manufacturing a guide stent of a dental implant. The method includes a first step of obtaining a three-dimensional image of periodontal tissue in a mouth of a patient through an CT scan and a three-dimensional exterior image corresponding to the three-dimensional image through an oral scan; a second step of matching the three-dimensional image and the three-dimensional exterior image through a difference amp which overlaps the three-dimensional image and the three-dimensional exterior image and outputs a matching degree between the images, and obtaining a three-dimensional procedure guide image; and a third step of manufacturing a stent body having a through hole corresponding to a preset implant implantation position according to the obtained three-dimensional procedure guide image.

A compressed air delivery system includes a vehicle having a power source, an air compressor configured to be powered by the power source, and a reservoir configured to retain compressed air produced by the air compressor. The vehicle further includes a first outlet disposed on a first side of the vehicle and a second outlet disposed on a second side of the vehicle configured to supply the compressed air in the reservoir to a plurality of tools. The vehicle also includes an operating space having a chair. The first side of the vehicle is disposed opposite the second side of the vehicle.

A dental handpiece oiling machine includes a lubricating oil delivery circuit, a gas delivery circuit, and an atomizer. The atomizer is respectively connected to the lubricating oil delivery circuit and the gas delivery circuit and includes a gas acceleration structure used for sharply accelerating gas from the gas delivery circuit to form a high-speed gas flow and an atomization structure used for atomizing lubricating oil from the lubricating oil delivery circuit under the action of the high-speed gas flow to form oil mist which is delivered to dental handpieces. Since lubricating oil is broken into mist-like particles by the high-speed gas flow, oil and gas are sufficiently mixed, sufficient lubrication can be realized merely with a small amount of oil, and environmental pollution is greatly reduced; and an oil pump is not needed, so the dental handpiece oiling machine has a simple structure and a long service life.

A needle assembly for endodontic procedure apparatus and a method of forming an endodontic needle are disclosed. The needle assembly comprises a connector for removably coupling the needle assembly to a handpiece, a body portion extending from the connector and providing a fluid conduit; and a polymer needle extending axially from a proximal end at the body portion to a distal tip. The tip has at least one opening, the needle has a lumen extending therethrough to define a fluid passageway from the fluid conduit of the body to the at least one opening. The needle may have a conical shape. The method may comprise providing a cylindrical preform of a first length and a first diameter and forming the cylindrical preform into a conical needle which tapers inwardly along its length.