37 results about "Edentulous patient" patented technology

A dental tray having a body, at least two finger rest beams and a handle. The body has a predetermined shape and a plurality of body openings. The predetermined shape of the body accommodates the anatomical shape of the patient's mouth and receives the entire jaw and gingiva areas. The plurality of body openings positioned in the body to allow the impression materials to vent through the body openings to obtain the impression and to retain the impression materials onto the body. The handle is received on the body and has a predetermined configuration to facilitate ease of use and elimination of lip pressure. Each finger rest beams are received longitudinally on the bottom of the body. The combination of the handle and each finger rest beams are ergonomically designed to allow optimal stabilization pressure be exerted by the operator to the dental tray and impression material.

The present invention discloses a set of dental arches comprising: an upper arch (1) formed by upper anterior (2) and posterior (3) artificial teeth and another lower arch (5) formed by lower anterior (6) and posterior (7) artificial teeth mounted in an orderly fashion on flexible bases (4) and (8) constructed of elastomeric resin in the form of an arch, having a three-dimensional movement capacity to enable adaptation to the anatomy and physiology of edentulous patients; the base material also allows the adjustment of each tooth individually, through changes of position, inclination or alignment, in a simple manner, thus producing custom prosthodontics; its use in the confection processes of removable complete and partial dentures saves time, labor and cost compared to traditional methods.

The present invention provides a method for obtaining an estimation of the shape, position and / or orientation of one or more existing teeth of a patient or of one or more teeth to be included in a dental restoration destined to replace one or more missing teeth in a partially edentulous patient. The method involves adapting a virtual teeth setup to the intra-oral anatomical situation of the patient, wherein said virtual teeth setup comprises separated surface meshes of individual teeth positioned in a dental arch or segment thereof. The virtual teeth setup is adapted by optimizing an energy function, which represents a quality measure for said virtual teeth setup, and using a statistical model, which describes for a given dentition or segment thereof a probability distribution for at leastthe shapes of individual teeth, the relations between shapes of neighbouring teeth and / or relations between positions and / or orientations of neighbouring teeth. The adapted virtual teeth setup resulting from said optimized energy function is subsequently used to estimate said sought for shape, position and / or orientation.

The invention relates to a device that maybe used in maxillofacial surgery and dentistry. The device comprises a translating bracket with a cylinder and a fixed bracket with a chamber. A distraction screw is mounted through the cylinder and with one end resting on the chamber. By turning this screw when the device has been mounted on bone pieces osteogenesis can be achieved. The device can be made suitable for both dentulous and edentulous patients with alveolar defects.

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.

A helper device for placement into a mouth cavity to facilitate the artificial pulmonary ventilation for an unconscious edentulous patient comprises a U shaped plate, which comprises upper, lower and side coupling surfaces for intra-mouth fixation, as well as a configured central orifice for housing an oropharynx cannula. Such device allows medical personnel to control and perform ventilation operations while the patient is wearing a facemask.

A dental tray having a body, at least two finger rest beams and a handle. The body has a predetermined shape and a plurality of body openings. The predetermined shape of the body accommodates the anatomical shape of the patient's mouth and receives the entire jaw and gingiva areas. The plurality of body openings positioned in the body to allow the impression materials to vent through the body openings to obtain the impression and to retain the impression materials onto the body. The handle is received on the body and has a predetermined configuration to facilitate ease of use and elimination of lip pressure. Each finger rest beams are received longitudinally on the bottom of the body. The combination of the handle and each finger rest beams are ergonomically designed to allow optimal stabilization pressure be exerted by the operator to the dental tray and impression material.

A prosthetic retention system for edentulous patients comprising a prefabricated bar and two implants; where the said bar consists of a tubular central piece that has a round or ovoid cross section and two hollow capsules at its ends; and where the implants are formed by one single piece, with an upper zone that connects to the bar and a lower zone that is introduced into the patient's bone tissue.

A laryngeal mask anchoring device serves to seat an airway tube in an operational position against edentulous gums and the roof of the mouth to securely hold the airway tube in a desired position. The device also guides the airway tube towards the lungs, and braces the mouth open for manipulations to the airway tube. The device collapses into a substantially flat configuration for storage and portability. An upper and lower brace directly engage the edentulous gums. The braces are substantially smooth and pliable, and are configured to mate with substantially smooth, bald gums. A supportive platform with a slightly curved surface forms a supportive brace to hold the airway tube into place against the roof of the mouth. The slightly curved configuration of the platform nestles the airway tube, and the large surface area presses the airway tube against the roof of the mouth.

A custom oral splint that is operatively secured to the maxilla and mandible of a subject / patient to assist in reduction and provide maintenance of reduction of maxillary and mandibular fractures in the edentulous or partially edentulous subject / patient. In this difficult patient population, there are very limited options for maxillomandibular fixation, and none provide stable reduction of fractures. The novel device minimizes operative time and equipment, as well as offers the ability to transition the patient from rigid fixation to elastics postoperatively. The novel device is custom-designed for each patient's degree of bone atrophy, ensuring a high quality, and effective product.

The present invention relates to a dental system having a baseline enabling a digital three-dimensional tooth model to be merged with the anatomical location and plane analysis of a human body, the dental system being formed to enable an edentulous patient or a patient with partially missing teeth to bite same with their mouth and comprising: an acquisition unit for acquiring the tooth height or tooth distance of the patient; an analysis unit which is provided in a maxillary landmark or a mandible landmark of the edentulous patient or the patient with partially missing teeth and analyzes an occlusal plane of the edentulous patient or the patient with partially missing teeth; and a control unit which is linked to each of the acquisition unit and the analysis unit and simultaneously or selectively modulates and controls the acquisition unit and the analysis unit. A digital three-dimensional tooth model, which is required for the design of a digital tooth prosthesis needed for an edentulous patient or a patient with partially missing teeth, is modulated with a baseline that enables the model to be located at an anatomically ideal position, and thus is formed such that the digital three-dimensional tooth model is rapidly and accurately matched with the anatomically ideal position, thereby having the effect of good mastication and pronunciation.

The present invention provides a method for obtaining the shape of one or more existing teeth of a patient or one or more teeth to be included in a dental restoration intended to replace one or more missing teeth of a partially edentulous patient , a method of estimating position and / or orientation. The method involves adapting a virtual tooth arrangement to the intraoral anatomy of the patient, wherein the virtual tooth arrangement comprises a separate surface mesh of individual teeth positioned in a dental arch or a segment thereof. The virtual tooth arrangement is adapted by optimizing an energy function representing a quality measure of the virtual tooth arrangement and using a statistical model describing at least a single tooth for a given dentition or segment thereof The probability distribution of the shape of , the relationship between the shapes of adjacent teeth, and / or the relationship between the positions and / or orientations of adjacent teeth. The sought shape, position and / or orientation is then estimated using the adapted virtual tooth arrangement produced by the optimized energy function.

The invention proposes a method and device for making a complete denture based on data mining, and relates to the field of stomatology. Among them, a complete denture manufacturing method of the present invention includes: obtaining alveolar ridge data of an edentulous patient; selecting a target denture template in the complete denture template database according to the alveolar ridge data; Data Acquisition of complete denture design data. Through such a method, the patient's alveolar ridge data can be matched with the standard denture template data in the template library, so as to obtain a standard denture template suitable for the patient, and further complete denture design can be carried out based on this template, thereby omitting the need for technicians. The steps of manual detailed design and production improve the automation of complete denture design and improve the efficiency of complete denture production.

The present invention provides a full-process digital production method of complete dentures, which includes obtaining the three-dimensional data STL files scanned in the mouth of patients with complete edentulous jaws; Relative positional relationship, obtain the three-dimensional data STL file of the centric occlusal tray by scanning; obtain the DICOM file of the spiral CT or CBCT of the edentulous patient wearing the centric occlusal tray; the advantages of this method are as follows: 1. The fitting of the four digital files constructs the three-dimensional space of the patient's maxillofacial region, and sets the occlusal plane of the try-in denture and the shape and position of the anterior teeth with reference to its anatomical structure, so as to improve the try-in effect of the try-in denture. 2. Utilize the final impression scanning and replication technology to accurately manufacture the shape of the final denture base. 3. The final denture is obtained by bonding different colors and high-strength resin discs that are cut separately with an adhesive to obtain the base and artificial dentition. The cutting precision is high, the strength of the resin disc is high, and the artificial teeth have good wear resistance.

The intraoral disposable gothic arch tracer of the present invention has simple structure, low cost, and one-time use reduces the chance of clinical cross-infection, and is convenient for popularization and use in a wide range of oral clinics; use the arch tracer to determine the median position of edentulous patients The clinical operation process is simple, the vertical height can be adjusted modularly, and the accuracy is 0.5mm, which fully meets the clinical needs and is convenient for clinical operation. The three contour tracing needles arranged in a triangle ensure the balance and stability of the tracing board, and finally guarantee It ensures the stability of the median relationship and overcomes the slight deviation of the upper and lower jaw positions that may exist in the conventional Gothic arch monographic needle fixation. The upper jaw is pre-finished with wax embankments to facilitate the transfer of the facebow to the upper joint frame and the accurate position of the artificial teeth arrangement.

To provide a pair of maxillary and mandibular coupled artificial tooth sets applicable to alveolar ridge shapes of an unspecified large number of edentulous patients and having all the parts of 14 teeth coupled into an ideal arch shape and in an ideal maxillomandibular occlusal contact relationship. The present invention provides a pair of maxillary and mandibular coupled artificial tooth sets clearly defining an arrangement region of all parts at the time of arrangement in virtual three-dimensional coordinates, a contact relationship between maxillary and mandibular artificial teeth, and a harmonizing contact / gliding relationship at the time of movement on a mean-value articulator. This enables provision of a high-quality complete denture in which an occlusal relationship required for a complete denture can be established in a short time regardless of a skill of a technician and a difference in shape of an alveolar ridge of an edentulous patient.

A method for fabricating a dental surgical guide. The method includes the steps of producing a dental cast dental cast from an edentulous patient jaw; drilling the dental cast model for inserting a radiopaque rod therein; molding a base plate thereon to produce a radiopaque marker appliance; scanning the resulting appliance in a patient's mouth using computed tomography; calculating angles from the computed tomography for adjusting protractors of a dental model laser aligner; and molding a base-plate that incorporates a telescopic drilling tube that results into the dental surgical guide.