16 results about "Impression trays" patented technology

The invention relates to an optical impression-capturing device that is capable of capturing images for the three-dimensional reconstitution of a dental object representing at least part of at least one dental arch, the device comprising: in a support part of the dental impression tray type suitable for at least partially covering the dental object, an optical assembly having: - a light-emitting system comprising light sources (3') for illuminating the dental object; - optical modules (1) having light-measuring sensors distributed in a bottom wall (4) of the support part oriented, during image capture, towards the dental object, the optical modules (1) being capable of capturing the direct light rays emitted by the light-emitting system and indirect light rays originating from the optical assembly and from the dental object; and also means (2) for protecting the optical modules (1) that allow the passage of light rays.

Title: Optical impression taking device The invention relates to an optical impression taking device capable of taking pictures for the three-dimensional reconstruction of a dental object representing at least a part of at least one dental arch and comprising, in a support piece of the dental impression holder type adapted to cover at least partially the dental object, an optical assembly having: a light emission system comprising light sources (3') to illuminate the dental object;optical modules (1) with light measurement sensors distributed in a back wall (4) of the support piece oriented, during image capture, towards the dental object, said optical modules (1) being capable of capturing direct light radiation emitted by the light emission system, and indirect light coming from the optical assembly and the dental object. In addition, it includes means of protection (2) for the optical modules (1), said means of protection (2) allowing the passage of light rays. Figure for the abbreviation: Fig. 1;

The oral cavity impression tray comprises a tray body provided with a tray handle and a tongue-shaped plate, the tray body is provided with a first notch and a second notch which correspond to dentitions on the two sides, and a plurality of blocking strips which are used for blocking impression materials and are of the same structure are arranged on the outer sides of the first notch and the second notch. One side of the first notch is connected with a positive pressure pipe for blowing air to the first notch and the second notch, a first overflow frame and a second overflow frame which are located behind the blocking strip are fixedly arranged on the outer side of the first notch and the outer side of the second notch correspondingly, and one side of the second notch is connected with a negative pressure pipe. The negative pressure pipe is provided with a first suction pipe and a second suction pipe which extend into the first overflow frame and the second overflow frame. According to the utility model, the impression material can be prevented from being mistakenly swallowed and sucked at the throat part, the safety of a patient is ensured, the strong negative pressure formed by ultrahigh adaptation of the tray body and mouth mucosa after the impression material is solidified can be removed, and the tray body is ensured to be smoothly taken out.

The invention relates to an impression tray for creating a dental impression of at least one tooth, comprising: a base element with a base surface, a first boundary element, and a second boundary element, wherein the first boundary element and the second boundary element are arranged at the base element to form a receiving tray between the first boundary element, the base surface and the second boundary element, that is adapted to receive a first dental impression material, wherein the base element comprises a cavity that at least partially extends underneath the base surface so that the cavity and the receiving tray are separated by a base layer of the base element, and wherein the base element comprises an aperture that is in fluid communication with the cavity and adapted to allow the injection of a second dental impression material into the cavity.

An intraoral scanning system included an impression tray which is formed from a shape-memory polymer adaptable to various mouth shapes and sizes. A plurality of multi-spectral micro-cameras (e.g. CMOS

This invention discloses a three-quadrant split-type oral impression tray and its usage method. The tray is composed of a left posterior tooth component, a right posterior tooth component, and an anterior tooth component that can be detachably assembled. The left and right posterior tooth components are symmetrically structured, and each has a pair of L-shaped protrusions along its length. The anterior tooth component has corresponding mating grooves at the L-shaped protrusions. The metal connectors adopt a foolproof asymmetrical tenon design. After being inserted into the mating grooves, they achieve smooth locking through precise clearance tolerances. At the same time, magnetic suction pieces are pre-installed in the mating grooves. The tray can be quickly disassembled into three independent units, adapting to various scenarios of partial impression taking for single jaw full teeth, anterior teeth, and anterior teeth and unilateral posterior teeth. When taking an impression, the surface contact between each component and the oral tissue ensures stable support. When demolding, linear separation is achieved by disassembling the components to disperse resistance. All connectors and mating structures are located at the bottom of the tray, completely avoiding encroachment on the operating space outside the oral cavity.

The invention belongs to the technical field of oral cavity medical instruments, and particularly relates to a detachable positioning oral cavity planting mold taking tray and a using method thereof.The detachable positioning oral cavity planting mold taking tray comprises a tray support, an outer baffle, an inner net and an inner baffle, and the outer baffle, the inner net and the inner baffle are sequentially arranged on the tray support from outside to inside; the inner net is horizontally arranged and detachably placed on the upper surface of the tray support, the edge of the inner net and the edge of the tray support coincide with each other in the vertical plane, a vertically-penetrating through hole is formed in the surface of the tray support, and a plurality of vertically-penetrating first overflow holes are formed in the surface of the inner net. A plurality of first overflow holes are formed in the inner net, any four adjacent first overflow holes and the inner net jointly form windowing shells, the windowing shells are arrayed in the length direction of the inner net, and a plurality of horizontally-penetrating second overflow holes are formed in the surface of the outer baffle. The working efficiency is low, and the application range is not wide.

Disclosed is a dental impression-taking tray comprising a frame unit and a molding unit made of different materials, wherein, after margin formation through thermoforming of a tray molding unit, final impression taking and intermaxillary relation acquisition may be performed immediately at once in a clinic during a patient's first visit. The dental impression-taking tray according to one aspect of the present invention may comprise a maxillary tray and a mandibular tray, each comprising a non-deformable frame unit arranged in a U-shape along the dental arch, and a thermoformable unit arranged and coupled to enclose an outer surface of the frame unit and capable of being thermoformed in response to temperature changes.

The invention relates to the field of dental impression trays, in particular to a dental impression tray with adjustable edge fitting degree, which comprises a front section, a rear section, a reticular membrane and a tensioning line, the front section and the rear section are coupled through a ratchet wheel binding belt mechanism and jointly define a plane frame; the net-shaped film is fixed in the plane frame, and a plurality of threading holes are formed in the net-shaped film; the tensioning wire penetrates through the plurality of threading holes in a penetrating and bypassing mode and forms a cross traction part, the tensioning wire is provided with two free ends extending to the outer part of the plane frame, and the free ends are configured to respond to external tension so as to reduce the enveloping area of the cross traction part. The front section and the rear section are coupled through the ratchet wheel binding belt mechanism to form the plane frame, so that an operator can reduce the size of the plane frame so as to accurately fit the dental arch of a patient, and meanwhile, a pulling force is applied outwards to pull the free end of the tensioning wire inserted into the threading hole; and the loose net-shaped membrane can be leveled again and recovered to the required prestress state.

The utility model discloses a universal opening and closing window adjustable palate fornix impression tray which comprises a tray body provided with a handle and a dentition groove, a plurality of impression plates corresponding to teeth in number are detachably connected to the lower portion in the dentition groove, impression rod holes penetrating through the dentition groove are formed below the impression plates, a palate fornix plate is hinged to the tray body, and the palate fornix plate is hinged to the tray body. A fixing plate fixedly connected with the tray body is arranged below the palatal vault plate, the fixing plate is in threaded connection with an adjusting screw rod, the adjusting screw rod upwards penetrates through the fixing plate and is rotationally connected with a lifting plate for jacking the palatal vault plate, and the lifting plate is fixedly connected with a guide rod in sliding connection with the fixing plate. According to the utility model, the opening and closing windows of the tray body are universal and can be repeatedly used, the resource waste is reduced, the height of the palate dome plate can be adjusted according to the palate dome heights of different crowds, the clinical complex operation is reduced, and the accurate impression on the oral cavity of a patient is ensured.

An impression system is disclosed for enabling the creation of dentures in one-visit. The impression system may include an upper impression tray, an upper wax bite registration coupled to the upper impression tray, a lower impression tray, a lower wax bite registration coupled to the lower impression tray, and one or more arc-shaped wax plates configured to be coupled to at least one of the upper or lower wax bite registrations. Each of the upper and lower impression trays may include a convex outer surface and a concave inner surface with the associated wax bite registration coupled to the convex outer surface. The one or more arc-shaped wax plates may be configured to adjust distance between the concave inner surfaces of the upper and lower impression trays, generally associated with an occlusal vertical dimension of the patient.

The utility model relates to the technical field of artificial beak impression molds, and particularly discloses a bird artificial beak impression mold which comprises an artificial beak impression mold body, the artificial beak impression mold body comprises a lower impression mold tray and an upper impression mold tray located on the right side of the lower impression mold tray, and a first baffle is installed on the bottom end face in the lower impression mold tray. A second baffle installed on the bottom end face of the interior of the lower impression tray is arranged on the outer side wall of the first baffle, and the lower impression tray is sequentially divided into a first extrusion cavity, a second extrusion cavity and a third extrusion cavity from inside to outside through the first baffle and the second baffle. A plurality of flow guide holes are formed in the bottom end faces of the interiors of the first extrusion cavity, the second extrusion cavity and the third extrusion cavity in a penetrating mode, the upper impression tray is arc-shaped, and a pressing part is arranged on the outer side wall of the upper impression tray, so that the shape and the size of an artificial beak can be accurately determined, appropriate artificial beaks can be conveniently manufactured for injured birds or birds with beak defects, and the cost is low.

The invention discloses a self-adaptive controllable pressure impression structure with a Gott bow. The self-adaptive controllable pressure impression structure comprises an impression tray assembly, a rear area sealing structure, an injection pipeline and a pressure control injection component, the impression tray assembly is composed of an upper jaw tray and a lower jaw tray, rear area sealing structures are fixedly connected to the rear area positions of the upper jaw tray and the lower jaw tray, and the impression tray assembly further comprises a pressure control injection component. In order to solve the technical problems that a patient feels uncomfortable due to uncontrollable injection pressure of a common impression tray and potential safety hazards exist due to poor sealing of a rear area, the self-adaptive controllable pressure impression structure with the Gott bow is designed, positioning is achieved through the Gott bow, effective control over the injection pressure is achieved through a pressure control injection component, and the injection pressure is effectively controlled. And safe sealing is realized through the arranged rear area sealing structure, so that the adaptation degree of false tooth manufacturing and the comfort degree of a patient are effectively improved, and the safety in the operation process is also improved.