43 results about "Mandibular arch" patented technology

A cleaner apparatus for use in a dental prophylaxis process includes an applicator defining a curved occlusal wall, a buccal wall, a lingual wall, and a distal wall, each of the buccal wall, the lingual wall and distal walls extending outwardly from the occlusal wall and forming a curved applicator configured to receive a patient's teeth in one of the maxillary arch and mandibular arch of the patient. The applicator being configured to receive and contain a cleaning agent in the cavity during a teeth cleaning process. An ultrasonic transducer is embedded within each of the buccal wall and the lingual wall of the applicator. A controller is electrically coupled to the transducers for powering the transducers and controlling the operation thereof, and the cleaner apparatus for cleaning a full arch of a patients teeth via cavitation of the cleaning agent resulting from ultrasonic radiation transmitted from the transducers.

An multipurpose mouthpiece assembly is disclosed for use in diagnosing and treating a variety of termporomandibular disorders. The assembly can include both a maxillary appliance and a mandibular appliance that are optionally configurable to function as a discluder, for diagnosing and treating wearers suffering from bruxism, tension headaches, and common migraine headaches, by preventing contact between opposing canine and posterior teeth and thereby reducing the intensity of clenching of the wearer's temporalis muscles. Alternatively, the two appliances are optionally configurable for use as a mandibular advancement device, for diagnosing and treating wearers suffering from obstructive sleep apnea by preventing excessive retrusion of the wearer's mandible. Alternatively, either the maxillary appliance or the mandibular appliance can be used individually to protect the teeth from nocturnal asymptomatic teeth grinding. In all cases, the appliance(s) can be readily adjusted to accommodate wearers whose maxillary and mandibular arches have a variety of sizes and shapes.

A dental isolation block adapted for maintaining the mouth of the dental patient open, while keeping the work field dry and exposed with the lip retracted and the tongue suppressed to facilitate performance of a dental procedure by a dental practitioner. The dental isolation block includes a first and second bite platform capable of being disposed between the maxillary arch and mandibular arch, a lip retractor with a first end adjacent the first bite platform and a second end adjacent the second bite platform, and a tongue shield extending between the first and second bite platform. The lip retractor may include a channel for receiving and directing saliva to a suction drain and suction holes all in fluid communication with a dental office suction system. A suction extension may be affixed to the first and/or second bite platform to further evacuate saliva from entering the work field. The dental isolation block can be positioned such that the lip retractor retracts the upper lip if the work field is on the upper arch or to retract the lower lip if the work field in on the lower arch.

A slide on connector for positioning upon an arch wire between the teeth of an orthodontic patent is provided. This connector works in conjunction with maxillary and mandibular arch expanders and other orthodontic appliances. The connector includes a base casing with a body segment and a base segment where both include a threaded bore. A screw is then threadedly engaged through the body and into the base segment. The base segment has tubes attached thereto for the insertion of an arch wire and the screw turns upon the arch wire for securement. The tubes can be preangulated to assist in root angulation or other orthodontia when the arch wire is inserted.

A method for generating a mapping of dental occlusion generates a three-dimensional model of the patient's teeth (la, according to acquired image data. The maxillary and mandibular arches are positioned in opposition in the generated model of the patient's teeth and a meal model (50) generated having characteristics of a foam material. A pressure field distribution for the generated meal model is calculated for one or more pairs of opposed teeth (1a, 1b) from the generated three-dimensional model of the patient's teeth. The calculated pressure field distribution (54) can be displayed.

The invention discloses a method and device for manufacturing an orthodontic bracket and relates to the technical field of orthodontic bracket manufacturing, by means of the method and device for manufacturing the orthodontic bracket, the personalized orthodontic bracket can be manufactured according to the unique tooth three-dimensional anatomical structure of each patient, and the effect and efficiency of orthodontic treatment can be improved.The method includes the steps that firstly, an original three-dimensional tooth column model before orthodontic treatment is obtained; then, digital virtual orthodontic tooth arrangement is conducted on the original three-dimensional tooth column model according to the preset head shadow measurement value range of normal people and preset mark points, and a three-dimensional model of a normal tooth column state is constructed; smooth maxillary arch wires and mandibular arch wires are constructed according to the lip buccal side tooth crown state in the three-dimensional model; finally, a bracket gutter corresponding to the orthodontic bracket is constructed according to the tooth position information in the three-dimensional model and the states of the maxillary arch wires and mandibular arch wires, and a bracket bottom plate corresponding to the orthodontic bracket is constructed according to the dental crown surface form in the three-dimensional model.The method and device are suitable for processing the orthodontic bracket.

A prescription for an orthodontic appliance is generated with a method using a computer-based program. The method includes providing a list of orthodontic appliances. From the list, an orthodontist may select an orthodontic appliance using a computer interface. The method also includes depicting a pictorial representation of the orthodontic appliance selected with a representation of the patient's maxillary and mandibular arches and providing a written description of the orthodontic appliance selected. The prescription is then sent to an orthodontic manufacturing lab. In one embodiment, the computer based program is installed on a computer system in an orthodontic clinic. In another embodiment, the computer based program is accessed by connecting to a web site. The web site may be operated by the orthodontic manufacturing lab or the supplier of the computer-based program.

The invention discloses a dental plaque biofilm intraoral experimental device and a manufacturing method. The dental plaque biofilm intraoral experimental device is a resin mold for maxillary teeth of a subject. Each of mandibular arch parts at two sides of the mold is provided with three protrusions with square cross sections; each protrusion is provided with six circular holes; the three square protrusions on each of the mandibular arch parts at two sides of the mold are arranged longitudinally along the mandibular arch to form sample slots; and samples are put in the sample slots and fixed by using silicon rubber. The dental plaque biofilm intraoral experimental device is simple and convenient to manufacture; a model has a light weight; the samples are put at mandibular arches; the space for putting the samples is large; and comfortable sensation is good. The model is made from materials of invisible appliance and retainers, in coordination with an impression material of silicon rubber, and has good security.

The centric relation bite registration tool is a tool for recording the centric relation of a patient's mandible in order to obtain proper occlusion to fabricate a full mouth fixed dental prosthesis. The centric relation bite registration tool includes both a vertically adjustable portion and a horizontally adjustable portion. The vertically adjustable portion is adapted for mounting in a dental implant in the patient's mandibular arch, and the horizontally adjustable portion is adapted for mounting in a dental implant in the patient's maxillary arch. The vertically adjustable portion and the horizontally adjustable portion are releasably secured to one another between the mandibular and maxillary arches providing a single tool which is both horizontally and vertically adjustable for recordation of the proper occlusion between the patient's mandible and maxilla.

The invention relates to a method for animating models of the mandibular and maxillary arches of a patient in a corrected intermaxillary relationship, comprising: —providing three-dimensional numerical models (MD, MX) of the mandibular and maxillary arches of the patient; —providing a recording of the mandibular motion of the patient, said recording comprising a plurality of relative positions of the mandible of the patient with respect to the maxilla; —selecting, from said positions, a reference position (X) of the mandible with respect to the maxilla of the patient; —determining a target position (Y) for the mandible with respect to the maxilla, said target position defining a corrected intermaxillary relationship for the patient; —determining a rigid transformation between the reference position (X) and the target position (Y); —applying said rigid transformation (i) to the recording of the mandibular motion of the patient in order to animate the three-dimensional numerical models of the mandibular and maxillary arches, or (ii) to the three-dimensional numerical model of the mandible, the delivered recording of the mandibular motion being applied to the three-dimensional numerical models of the mandible and of the maxilla in order to animate said models.

The invention brings forward a tooth whitening instrument system. The system comprises a tooth whitening instrument, the tooth whitening instrument comprises a housing, a cold-light emitting apparatus inside the housing and a tooth mold arranged on the housing, wherein the tooth mold is an elastomer with a concave arc-shaped bent surface, the housing is provided with a charging port, and the charging port can charge the tooth whitening instrument through a mobile phone. According to the invention, the tooth whitening instrument is designed to be a portable apparatus, the housing of the whitening instrument is provided with the charging port matching the data line of the mobile phone, a client is enabled to whiten their teeth at any time at any place, the tooth whitening cost of a user is greatly decreased, consumption of the client using a household type tooth whitening instrument is equivalent to one tenth of the consumption of tooth whitening in a dentistal hospital once, the concave arc-shaped tooth mold matches the form of a tooth mandibular arch completely, a light source is enabled to maintain an optimal irradiation angle and an optimal distance with teeth, and application is facilitated.