116 results about "Impression trays" patented technology

An apparatus serves to produce dental impressions for the subsequent manufacture of crowns, bridges and other dental prostheses. The apparatus serves to produce so called injection correction impressions of teeth contained in a jaw. The apparatus includes an injection correction impression tray having an interior for containing impression material. The tray includes a bottom opening. The apparatus further includes a bottom plate having a top side and a protrusion. The bottom plate is connectable to the tray in a way that the protrusion protrudes into the interior of the tray to form an injection channel for a correction impression material.

Apparatus, kits and methods for providing accelerated treatment of a patient's teeth. The apparatus, kits and methods involve the use of a dental impression tray that includes a patient dentition impression formed from a dental impression material such as an alginate. The impression tray advantageously includes heating means for heating and maintaining the formed patient dentition impression at a temperature greater than about 105° F. The heated dental trays may be used to accelerate the activity of dental bleaching agents (e.g., peroxides), desensitizing agents (e.g., potassium nitrate), remineralizing agents (e.g., fluoride salts), and the like. A dental office procedure for treating teeth involves the basic steps of: (1) coating a specially-prepared patient dentition impression with a dental composition such as a bleaching, desensitizing or remineralizing composition; (2) placing the coated patient dentition impression into the patient's mouth; (3) heating the patient dentition impression and dental composition to a temperature of at least about 105° F.; and (4) retaining the patient dentition impression in position for period of time in a range of about 1 minute to about 60 minutes. The procedure can be adapted to microwave heating, electrical resistance heating, or hot fluid heating of the patient dentition impression.

A device for use in optical scanning and CT scanning including a radiographic template and at least one shape of known dimension (SKD). The radiographic template includes a plurality of radio-opaque markers and is configured to take an impression of at least one surface of a patient. The SKD is removably attached to the radiographic template and serves as a basis for registration of data of a CT scan of the device with data of an optical scan of the device. The device may further comprise a mounting plate. The SKD is mounted on the mounting plate such that the at least one SKD is in an exact same position with respect to surfaces in a model formed from the impression as when the impression of the patient is formed in the radiographic template.

The invention relates to an adjustable impression tray (1) comprising a trough (2) in the form of an arch with a straight central portion (7) extended by two lateral branches (8,9), essentially matching the form of a dental arch and comprising several integral zones which may be deformed at the temperature of use in the form of a multi-directional extension means (12), for example an accordion-like bellows arrangement (13 to 16). The impression tray, preferably for single usage, advantageously comprises splitting zones (17, 18) which allow the production of impression trays of differing sectors, which by comprising one or several deformation zones are equally adjustable. The invention is of interest to dentists and prosthetic dentists and more generally to producers and users of dental equipment.

In an exemplary embodiment, a method of creating an impression of structures of the human oral cavity comprises: preparing impression trays: creating a first, or base, impression; grinding out portions of the base impression; and using the void(s) in the ground out base impression to take a second, or wash, impression. The base impression is taken with an excess of a high-density impression material which is positioned to extend beyond the structures of interest (of which the impression is being taken). The base impression is removed and all fine structure surrounding the structure(s) of interest is ground out. A wash impression is then taken using a low-density impression material. The base impression creates a seal around the structure(s) of interest (a closed system), thereby producing omnidirectional hydraulic pressure on the low-density material. Such omnidirectional hydraulic pressure produces a highly detailed final impression from which a high-quality model (e.g., cast) can be made.

The invention relates to a digital preparation method of an edentulous jaw individual impression tray. The method comprises the following steps: preparing a preliminary impression, or forming a plaster model by pouring; scanning the preliminary impression or scanning the plaster model; introducing scanning data into reverse engineering software and intercepting tissue surface point cloud data of the edentulous jaw preliminary impression; acquiring point cloud data of undercut-free alveolar ridge surface; uniformly enlarging the alveolar ridge surface by 1-2mm in the normal direction of the alveolar ridge surface so as to obtain a virtual tray inner surface; uniformly thickening the virtual tray inner surface by 2mm in the normal direction thereof; designing an upper jaw virtual tray handle and a lower jaw virtual tray handle; and fusing data boundaries of the inner and outer surfaces of the virtual tray as well as the handle and saving the data in an STL format, importing the data into a computer system connected to 3D printing equipment, and making the edentulous jaw individual impression tray from a polymethyl methacrylate (PMMA) material by virtue of the 3D printing equipment. The digital designing and manufacturing method of the edentulous jaw individual impression tray can replace traditional hand-made manufacturing method.

A shipping container that is configured to store, protect, and transport a dental impression is disclosed. The shipping container includes an exterior surface that encloses an interior area; a support located within the interior area that is configured to receive an impression tray that includes a patient's dental impression; and a means attached to or integrally formed with the support that is configured to hold the impression tray in place on the support and to position the impression tray in a standardized orientation. The shipping container, including its exterior surface and internal support(s), are made of a material that will not interfere with a selected non-invasive imaging scan. The shipping container is configured and used to obtain a digital scan of the dental impression, without the need to open the shipping container or directly handle the dental impression.

Impression trays for taking dental impression of a subject are discussed herein with particular discussion extended to impression trays know as triple trays. Triple trays are so coined for their ability to simultaneously capture the upper and lower impressions and the bite registration of a subject during a same dental procedure. The trays described elsewhere herein incorporate features that strengthen or increase the rigidity of the frame so that an impression taken of the dentition of the subject using one of the trays described elsewhere herein is not distorted and is therefore an accurate reflection of the true dentition.

In an exemplary embodiment, a method of creating an impression of structures of the human oral cavity comprises: preparing impression trays; creating a first, or base, impression; grinding out portions of the base impression; and using the void(s) in the ground out base impression to take a second, or wash, impression. The base impression is taken with an excess of a high-density impression material which is positioned to extend beyond the structures of interest (of which the impression is being taken). The base impression is removed and all fine structure surrounding the structure(s) of interest is ground out. A wash impression is then taken using a low-density impression material. The base impression creates a seal around the structure(s) of interest (a closed system), thereby producing omnidirectional hydraulic pressure on the low-density material. Such omnidirectional hydraulic pressure produces a highly detailed final impression from which a high-quality model (e.g., cast) can be made.

An adjustable dental impression tray including a first arcuate member and a second arcuate member configured to selectively engage the first arcuate member. The first and second arcuate members forming a channel adapted to receive a quantity of impression material. The adjustable dental impression tray having a handle formed at one end which facilitates the introduction and removal of the impression tray into and from the mouth of a patient. An adjustment mechanism engageably disposed in relation to the first and second arcuate members, wherein the adjustment mechanism provides for the selective adjustment of the first arcuate member in at least one fixed position relative to the second arcuate position, wherein defining one or more widths of the channel. Preferably, the channel is formed having a general U-shaped configuration which approximates the various sizes of the dentition of a patient. In preferred design, each of the arcuate members comprise an outer wall, an inner wall and a platform surface. A locking member is preferably formed in relation to the arcuate members to receive and retain the impression material in relation to the channel. In addition, one or more notches may be formed in the length of the arcuate members to provide means for removing at least a portion of the length of one or both of the arcuate members, thereby forming a "quadrant" or an "anterior" dental tray.

Method and kit for producing a dental product The invention relates to a method and a kit for producing a dental product. The invention also relates to a device that allows the method according to the invention to be implemented. According to the invention, a thermoplastic material (4) of said kit is selectively heated through the supply of targeted (directed) energy more strongly than an impression tray (1) and/or an impression material (3).

An impression tray for taking impressions of transfers of dental implants comprises, in its closed face, a succession of removable segments secured by screws or by studs. After the impression material has set, the segment(s) giving access to the screw of the transfer is/are removed.

A method for forming a dental implant includes drilling a pilot hole in the jaw bone of a subject and then threading an implant body into the pilot hole. The implant body includes a threaded portion integrally formed with a head portion having a polygonal recess. The implant body is threaded until the threaded portion reaches a predetermined seating depth. Next, an impression coping is mated with the polygonal recess of the implant body so that a portion of the impression coping is friction fit within the polygonal recess. After mating the impression coping with the implant body, an impression of the impression coping is formed. An implant analog is then mated with a portion of the impression coping without dissecting a portion of the impression tray. The implant analog is then used to form the dental implant.

A full denture base manufacturing method is provided that can easily manufacture a full denture base, using a set of maxillary impression tray and a mandibular impression tray for taking an impression from a patient including an edentulous patient.

An impression material is applied on each of a maxillary impression tray 3 and a mandibular impression tray 4 configuring a set of impression trays, and respectively having a U-shaped groove, the U-shaped groove having a front surface side on which the impression material is to be applied and being provided with projecting parts 1 on a back surface side thereof, and the applied impression material is pressed against an alveolar ridge within an oral cavity and set, to determine bite position and height in a state in which at least a part of flat top surfaces of the projecting parts 1 contact each other, the second impression material is applied between back surfaces of the impression trays 3, 4 and set in a state in which at least a part of the flat top surfaces contact each other, each of the impression trays 3, 4 and the impression material are removed from within the oral cavity in one piece of the maxillary and mandibular impression trays, or separately in two pieces of the maxillary and mandibular impression trays, and a model material is thereafter injected to each impression material on the removed maxillary and mandibular impression trays and set, in order to manufacture an edentulous jaw model, and the edentulous jaw model is set on an articulator in a state in which the bite position and height that are determined in advance are reflected, in order to manufacture a full denture base.

Embodiments of this invention provide predictability and standardization in the field creating dental models. Embodiments of the invention are capable of accommodating multiple variations and goals of dental impressions, including but not limited to creating dental models for study models, mouth guards, night guards, whitening trays, sleep apnea/snoring devices, etc. Embodiments may incorporate single arch and dual arch impression trays, as well as base model formers and articulators, among other devices of varying shapes, dimensions, sizes and manufacturers. Embodiments of the invention use standard dimensions for accommodating various components. To adapt embodiments of the invention for multiple purposes, and to standardize the process, embodiments of the invention include a shell that allows for standardized dental models to be suspended in the shell during the process of creating dental molds, creating a reservoir for the dental mold. Embodiments allow for a trimming process where impressions are standardized by cutting away lateral excess impression material by running a knife along the lateral portion of upper and lower impression tray walls, and then by trimming away vertical excess by placing the tray into the vertical excess trimming device.

In these embodiments, dental impressions and embodiments of a predetermined shell allow dental models to be created, including articulated models, in a simplified process.

The present invention thus allows dental professionals to easily pour up single and double arch dental impressions, create base models, and, optionally, articulate models in fewer steps than currently available, allowing less waste, material, and use of time than traditional and current methods.

The invention relates to a design production method of a dental implantation repair individual tray. The design production method comprises: preparing an initial impression, and filling a plaster model; scanning the initial impression or plaster model; transferring the scanning data into a reverse engineering software, and extracting the cloud data of the tissue surface points inside the initial impression mucous membrane folding line; filling the inverted concave region; uniformly amplifying 2-3 mm along the data surface normal direction to obtain a virtual tray inner surface; uniformly thickening 2 mm along the virtual tray inner surface normal direction; reserving an impression rod penetrating hole on the surface of the tray in the implant corresponding region; designing a maxillary virtual tray handle and a mandibular virtual tray handle; and carrying out boundary fusion on the virtual tray inner surface data, the outer surface data and the handle data, storing in the STL format, and producing the edentulous personalized impression tray having the resin material through 3D printing equipment. According to the present invention, the produced dental implantation repair individual tray using the digital designing can replace the traditional hand-made production, and the precision of the opening implantation impression is easily improved.

A dental articulating system and method configured to duplicate at least a portion of a patient's mouth for use in producing a dental prosthesis securing an impression tray to a flexible and resilient material on a stabilizing plate of an alignment fixture. The position of the impression tray is adjusted on the flexible and resilient material. A tray base is detachably secured to a bottom of the alignment fixture. The tray base with the alignment fixture thereon is placed on a drilling fixture. A drill bit is aligned with a location of an impression corresponding to a prepped tooth of the impression tray. A hole is drilled in the tray base corresponding to the prepped tooth.

The invention provides an adjustable oral impression tray, which comprises a tray body and a handle, wherein the handle is arranged at the arc-shaped top end of the tray body; the tray body comprises a base plate as well as an inner sidewall and an outer sidewall which are arranged on the edges of the inner and outer sides of the base plate; the radians of the inner sidewall and the outer sidewall are matched with the radians of corresponding edges of the base plate, and a groove with bottom narrower than an opening part is formed by the inner and outer sidewalls and the base plate; a slide strip which extends into the base plate is arranged on a part where the inner sidewall is contacted with the edge of the base plate, and/or a slide strip which extends into the base plate is arranged on a part where the outer sidewall is contacted with the edge of the base plate; and a slide way which is matched with the slide strip is formed inside the base plate. The adjustable oral impression tray disclosed by the invention can be adjusted to adapt to people requiring different impression tray widths, so as to extend the application scope to patients and shorten the time of selecting the impression trays by doctors; and a purpose that the impression tray provided by the invention is available to anyone is achieved.

A device for obtaining an impression for a tooth or plurality of teeth or oral structures comprising a receptacle to hold impression material, to which has been affixed a body, said body which can be adjusted to engage teeth and oral structures thereby increasing stability, limiting the movement of the receptacle as the impression material sets, directing impression material towards the area to be restored, and confining impression material within the receptacle. A method of use is also discussed.