178 results about "Incisor" patented technology

An orthodontic arch expander joins to a mouthpiece proximate to the rear of the mouthpiece. The transparent mouthpiece has a desired arc that fits over the teeth of the upper jaw. The mouthpiece has two wings that join near the incisors and then become parallel and spaced apart around the molars. Near the molars, an arch expander joins to the mouth piece. The arch expander has two telescoping shells with a threaded jack and cooperating springs. Each shell joins to a corresponding wing of the mouthpiece. Turning the jack lengthens a rod that pushes the shells outwards against the mouthpiece thus widening the maxillary arch without brackets or bands upon the teeth. An alternate embodiment has the arch expander attaching directly to the palatal bone through screws placed through a grommet at the end of each shell by an orthodontist or oral surgeon.

A dental oral appliance to reduce or eliminate snoring or obstructive sleep apnea and to open the airway for a sleeping patient. The appliance covers the inside (lingual) of the upper or lower teeth and has an open palate. Retention for the appliance is provided by an occlusal coverge of the upper or lower teeth. A raised incisor ramp that extends from the incisal tip of the incisors toward the lingual, or posterior ramps, separate the posterior teeth to open the airway. A transpalatal bar, which extends from the inside (lingual) of the right molars to the inside of the left molars, inhibits the upward and backward movement of the tongue. An anterior tongue restrainer which is attached to the transpalatal bar at one end and the front of the appliance at the other end, aids in inhibiting and restraining the upward and backward movement of the tongue.

The present invention relates to an arch wire that is used during orthodontic treatment. In accordance to the present invention a five segment orthodontic arch wire to provide a track for movement of teeth for correcting misalignment of teeth, said arch wire generally having ‘U’ shape and having same longitudinal axis through out the length, said arch wire characterized by: first segment having rectangular cross section and being provided for the posterior, 2nd premolar and molar region in left side of the jaw; second segment having rectangular cross section with rounded off corners, said second segment is followed by said first segment and provided for the canine and first premolar region in left side of the jaw; third segment having rectangular cross section, said third segment is followed by said second segment and provided for the anterior, incisor region; fourth segment having rectangular cross section with rounded off corners, said fourth segment is followed by said third segment and provided for the canine and 1st premolar region in right side of the jaw; and fifth segment having rectangular cross section, said fifth segment is followed by said fourth segment and provided for the posterior, 2nd premolar and molar region in right side of the jaw, wherein said arch wire is single piece and continuous in construction. Also an orthodontic apparatus comprising a five segment orthodontic arch wire in accordance with the present invention along with slotted bracket is also provided.

A method for producing a mouth guard having an encapsulated sensor module. The method includes vacuum forming a first sheet of thermoplastic material using a mold to produce a first mouth guard layer, attaching a sensor module to the first mouth guard layer with a hot melt adhesive, vacuum forming a second sheet of thermoplastic material over the sensor module to produce a second mouth guard layer, storing a default threshold level in the sensor module, and calibrating the sensor module to account for sensor alignment. In an example embodiment, the first and second layers are formed such that they define an open area that allows a user's tongue to touch their upper palate after the mouth guard has been inserted and such that the layers define a channel for accepting a plurality of teeth, including the incisors of a user.

System and method for automatic construction of the tooth's axes in terms of three orthogonal unit vectors are disclosed. Three dimensional data for a tooth is used to automatically construct the tooth's axes. System and methods for automatic construction of the axes for different types of teeth such as incisors, canines, premolars, and molars are disclosed.

An oral appliance (20) includes first and second mouthpiece elements (22,32) each equipped with adjustable ribs (30,40) on an anterior portion (24) and ramp surfaces (28,38) on each of its posterior arms (26). The ribs (22,32) slope upwardly, front to back at a steeper angle than the ramp surfaces. Preferably, the ribs (22,32) and the ramps (28,38) surfaces have maximum height which define a ratio in the range of between 2 and 2½ to mimic the differential in mouth opening between incisors and molars. The appliance has a plurality of laterally extending protrusions (42,44,46) that are engaged by elastic bands (48) to exert a force which simultaneously pulls the wear's mandible forward and biases the lower mouthpiece toward the upper mouthpiece. Adjustable ribs extend laterally to permit relative movement of the two mouthpiece elements to eliminate the buildup of tension in the wearer's jaw.

A dental oral appliance for use with patients who suffer with sleep disorders, to reduce or eliminate snoring or obstructive sleep apnea and to open the airway for a sleeping patient. Retention for the appliance is provided by an occlusal coverage of the upper or lower teeth. A raised incisor ramp (110) that extends from the incisal tip of the incisor toward the lingual, or posterior ramps, separate the posterior teeth to open the airway. A transpalatal member (28), which extends from the lingual of the right molars to the lingual of the left molars, inhibits the upward and backward movement of the tongue. The tranpalatal member may be curved and may slidably fit in the body of the appliance. A posterior tongue restrainer may be attached to the transpalatal member. There may be a plurality of raised projections (232, 234, 236) on the bottom of the transpalatal member.

A dental oral appliance for use with patients who suffer with sleep disorders, to reduce or eliminate snoring and to open the airway for a sleeping individual who suffers with obstructive sleep apnea. The appliance covers the inside (lingual) of the upper teeth and has an open palate. Retention for the appliance is provided by either clasps placed over the upper right and left molars and a retainer in the anterior area or by an occlusal coverge of the upper teeth. A raised incisor ramp that extends from the incisal tip (biting edge) of the incisors toward the lingual, or posterior raised ramps, separate the posterior teeth to reduce spasm on the temporalis muscle. A transverse, transpalatal ramp, which extends from the inside (lingual) of the upper right molars to the inside of the upper left molars, covers the tongue and holds it down, opening the airway.

A facial registration tool for use in the fabrication of dental prostheses includes two or more interconnected artificial teeth and a retention means extending posteriorly from the lingual surface of the teeth for attaching the tool to a wax bite rim. In one embodiment the facial registration tool includes simulated upper left and right lateral and central incisors and a retention knob for mounting the tool to a bite rim.

A method and system for training a patient to improve swallowing, for retraining jaw muscles and for holding or keeping the jaw in a correct bite position. All of this in-turn causing an improvement in posture. The system includes a combination of exercise and oral apparatus pieces or mouth-guards to retrain and balance the facial muscles and to develop a correct swallow. The mouth-guards of the present invention can improve biomechanical imbalance, posture and in turn athletic performance. A particular embodiment of an oral apparatus of the present invention includes top and bottom troughs for receiving top and bottom teeth into the apparatus. The troughs can be adapted to hold the upper canine teeth lower than the central and lateral incisor teeth and hold the upper teeth outside the lower teeth from the incisors to the molars. The apparatus can be pre-fabricated or custom made for a particular patient. Using heat moldable thermoplastics, some embodiments of the device can be formed in the patient's mouth after heating in hot water.

A jaw advancer connects to the skull, maxilla jaw, and the jawbone, mandibular jaw, without contacting the teeth of a patient. Each advancer, of a pair, has a hollow upper member with a head to admit a screw into the maxilla and an opposite threaded end, a socket having a threaded end that admits the upper member and an opposite smooth bore, and a lower member with a head to admit a screw into the mandible and an opposite smooth end that fits into the smooth bore. The lower member has a coaxial spring that provides an expansive force to the lower jaw and that cushions the socket. The lower member slides within the hollow portion of the upper member when the patient moves the advancer. The head of the upper member attaches proximate the molars of the maxilla to advance the mandible and attaches proximate to the incisors of the maxilla to retract the mandible. Alternatively, the lower member has a slight curve to separate it from the teeth.

The invention provides a manufacture method of a clinical personalized and integrated all-ceramic post-and-core of dentistry. The manufacture method is characterized in that a high-precision and short-wavelength visible scanner is adopted and directly used for scanning intraoral defected teeth subjected to root canal preparation, the CAD / CAM (Computer Aided Design / Computer Aided Manufacturing) central incisor prosthetic design is adopted, the design of integrating the post and the core is accomplished, and then the incisor back-cut method design is carried out to accomplish the design of the integrated all-ceramic post-and-core, and numerical control processing equipment is adopted and used for processing in order to accomplish the manufacture of the all-ceramic post-and-core.

The invention discloses a mandible movement track recording method, including the following steps: a, the rear end of a test marking rod is fixed at the mandible incisor part of a tester, the front end of the test marking rod is connected with a marker exposing port and moves along with the mandible; b, the movement track of the marker at the front end of the test marking rod is recorded by virtue of at least two infrared cameras provided with an infrared launching device, and movement track data is transmitted to a computer host to be analyzed and processed; c, the movement track of the marker is reconstructed in the computer, so as to correspondingly reflect three-dimensional track of mandible movement of the tester, and the recorded mandible movement three-dimensional track and calculated relevant parameters are respectively compared with mandible standard movement track and standard parameters which are stored by the system, so as to judge whether mandible movement and occlusion of upper and lower dentitions are normal or not. Besides, the invention also discloses a mandible movement track recording system.

The present invention relates generally to dental appliances, and more specifically, to a unique bite guard that protects the teeth from the negative effects of teeth grinding or clenching, or other temporomandibular disorders which may include tension headaches, teeth fracture, cracking and / or loss. The application and configuration of the dental appliance is aesthetically superior to other configurations and arrangements and comprises of an outer shell that is small in configuration and is sized to fit the lower portion of a patient's lower front teeth. The dental appliance further includes an inner pliable layer that is in mating engagement with the inner anterior wall and the inner posterior wall of the outer shell. The inner pliable layer is also in mating engagement with the patient's front incisors and conforms to the patient's dentition.

The invention provides a six-degree-of-freedom chewing robot control system, and aims at solving problems that conventional point-to-point cubic polynomial interpolation is high in the required torque and relatively large in the required equipment size. Each chewing robot has problems of individual difference and symmetry of six driving rods due to the factor of machining accuracy of the robot so that consistent PID control parameters are difficult to obtain. The following scheme is adopted: step one: the movement tracks of each branch rod of the chewing robot are planned, telescoping of each driving rod is solved through the position and the posture of incisor points, and the expected position and speed of each driving rod are solved through a path passing point cubic polynomial interpolation method; and step two: the chewing process of the robot is controlled according to the movement tracks of each branch rod, and the chewing process includes three phases of opening, closing and occlusion; and fuzzy control is used in the opening and closing phases, and fuzzy PID control is used in the occlusion phase.

An endoscopic guide for natural orifice transluminal endoscopic surgery. The device is a semi-flexible over-tube extending from the incisors through stomach and into the peritoneum. The over-tube has an inflatable balloon at its midpoint to occlude the esophageal lumen and prevent potential reflux of gastric content into the esophagus. The distal end is surrounded by two narrow inflatable balloons that are utilized on either side of the gastrotomy to keep the device in place with its lumen open into the peritoneum. The over-tube has a valve at the proximal opening that prevents leakage or peritoneal insufflation. The over-tube sheaths and protects the esophagus and guides instruments into the peritoneum. This device avoids re-intubation of the esophagus, promotes safe and easy access with increased efficiency and accuracy of insertion of the endoscope and other instruments, minimizes risks of perforation or other mucosal injuries, and allows secure control of the gastrotomy.

System and method for automatic construction of the tooth's axes in terms of three orthogonal unit vectors are disclosed. Three dimensional data for a tooth is used to automatically construct the tooth's axes. System and methods for automatic construction of the axes for different types of teeth such as incisors, canines, premolars, and molars are disclosed.

A system of dental appliances having various sizes and types and a method for treating malocclusions of patients of various ages without adjustments or appointments are provided. The dental appliances may be sized to treat, for example, patients in age ranges of less than six years; six years to twelve years; and twelve or more years. The dental appliances may have preformed and / or customized sockets and / or slots for more than one tooth, such as incisors and / or canines and / or molars and / or premolars and / or deciduous molars and / or adult molars. The dental appliances may be one-size-fits-all type dental appliances. The dental appliances may be used to treat a malocclusion, such as, for example, an overbite, an overjet, crowding, spacing, or temporomandibular joint problems, and may be distributed in an over-the-counter manner.

The invention provides a novel oral cavity orthodontic appliance, wherein the appliance comprises a tooth socket body, and a orthodontic bench is arranged on the tooth socket. The orthodontic bench is arranged on a lingual side of incisors or a lingual sides of incisors and canine teeth of the tooth socket body, and comprises a contact surface and a holding surface, wherein one end of the contact surface is connected with the tooth socket body, the other end of the contact surface is connected with the holding surface, and the orthodontic bench is a plat bench or a sloping bench, when the orthodontic bench is a plat bench, the contact surface matches with a occlusalf surface of maxillary-mandibular teeth, when the orthodontic bench is a sloping bench, the contact surface is in parallel with a lingual side of the a occlusalf surface of maxillary-mandibular teeth, or the contact surface and the a occlusalf surface of maxillary-mandibular teeth form an included angle. According to the invention, an ordinary tooth socket and a flat bite plate or an inclined bite plate are integrated into one body to replace the clasp and the flat bite plate or the inclined bite plate with adjacent hook-type retention. The appliance provided in the invention enlarges indication scope of orthodontic invisable aligner technique, and the appliance can be applied in a bracket treatment system. The appliance has characteristics of comfortable wear, transparentness and beautiful look, and is made of an elastic polymer material. The appliance can give continuous elastic force to the tooth that needs to be intruded or led, so that the orthodontic effect is better.

An orthodontic brace includes a set of orthodontic brackets for a dental arch that comprises at least one central incisor bracket, one lateral incisor bracket, and one cuspid bracket. Each bracket of the set lacks occlusal tiewings. Without occlusal tiewings, interferences with opposing teeth are substantially reduced and patient comfort, hygiene, and bracket aesthetics are enhanced.

A dental oral appliance for use with patients who suffer with sleep disorders, to reduce or eliminate snoring and to open the airway for a sleeping individual who suffers with obstructive sleep apnea. The appliance covers the inside (lingual) of the upper teeth and has an open palate. Retention for the appliance is provided by either clasps placed over the upper right and left molars and a retainer in the anterior area or by an occlusal coverage of the upper teeth. A raised incisor ramp that extends from the incisal tip (biting edge) of the incisors toward the lingual, or posterior raised ramps, separate the posterior teeth to reduce spasm on the temporalis muscle. A transverse, transpalatal member, which extends from the inside (lingual) of the upper right molars to the inside of the upper left molars, covers the tongue, preventing it from moving upward or backward during sleep, opening the airway.

The invention relates to the technical field of computer-assisted orthodontic treatment, in particular to a method for digitally measuring dental jaw growth and development laws. The method includes continuously tracking and regularly acquiring dental jaw models of the same child group; screening normal (occlusion) dental jaw models from the dental jaw models; registering the dental jaw models of the same individual at different growth and development stages by the aid of positional relations of the middle point of the central incisor papilla in palatal rugae of the dental jaw of the individual, the middle point of left first palatal rugae of the dental jaw of the individual and the middle point of right first palatal rugae of the dental jaw of the individual; measuring variation data of jaw bones of the individual at a next stage on the basis of a dental arch curve of the dental jaw model of the individual at a previous stage; determining the normal dental jaw growth and development laws of certain areas by means of statistics and analysis. The method has the advantages that the measurement accuracy is high, measurement results are stable and reliable, and measurement procedures are simple and feasible.

An orthodontic arch expander joins to a mouthpiece proximate to the rear of the mouthpiece. The transparent mouthpiece has a desired arc that fits over the teeth of the upper jaw. The mouthpiece has two wings that join near the incisors and then become parallel and spaced apart around the molars. Near the molars, an arch expander joins to the mouth piece. The arch expander has two telescoping shells with a threaded jack and cooperating springs. Each shell joins to a corresponding wing of the mouthpiece. Turning the jack lengthens a rod that pushes the shells outwards against the mouthpiece thus widening the maxillary arch without brackets or bands upon the teeth. An alternate embodiment has the arch expander attaching directly to the palatal bone through screws placed through a grommet at the end of each shell by an orthodontist or oral surgeon.

The invention relates to a diaphragm pressing type maxillary traction device and a manufacture method of the diaphragm pressing type maxillary traction device, in particular to a diaphragm pressing type maxillary traction device for orthodontics and a manufacture method of the diaphragm pressing type maxillary traction device, and belongs to the technical field of medical apparatus and instruments for orthodontics. The diaphragm pressing type maxillary traction device comprises an upper jaw pad (101) and a traction hook (103); diaphragms (104) for covering maxillary arch, partial mucosa at buccolabial side and most of the mucosa at a palatal side are arranged on a base plate (102) of the upper jaw pad (101); the base plate (102) is provided with bumps (105) for fixing the position in buccal surface areas relative to the primary central incisor, the deciduous cuspid and the second deciduous molar; the tail end of the traction hook (103) is wrapped into the base plate (102); and a head (106) of the traction hook (103) is extended from a position between the deciduous cuspid and the second deciduous molar to the labial and positioned in the labial surface of the deciduous cuspid.

The invention discloses a stomach tube preventing aspiration. The stomach tube comprises a control circuit, an air pump, a PH value sensor and a stomach tube provided with an air bag, wherein the air pump is communicated with the air bag, the PH value sensor is arranged at the position which is 40cm away from an incisor, on the inner wall of the stomach tube, and the control circuit is connected with the air pump and the PH value sensor respectively. According to the stomach tube disclosed by the invention, the gastroesophageal reflux can be accurately detected in advance every time by utilizing the real-time monitoring of the PH value in an esophagus and the pressure of the air bag by the PH value sensor and a pressure sensor, so that the aspiration caused by reflux and the possibility of resulting in recessive pneumonia can be avoided; and besides, the stomach tube disclosed by the invention adopts a real-time control manner so as to automatically start the expansion of the air bag, so that the damage of esophageal mucosa due to the longstanding oppression of the air bag on the esophagus is avoided, and the substernal discomfort of users can be relieved. The stomach tube preventing aspiration, which is disclosed by the invention, can be widely applied to the field of medical apparatus.

The invention concerns a panoramic x-ray apparatus and a method for positioning a layer to be imaged for dental panoramic x-ray imaging. The x-ray apparatus comprises a radiation source (15) and an image information receiver (14) arranged at a distance from each other at a turnable arm part (13). In the invention, a side profile x-ray image is taken of the frontal area of a dental arch positionedto be imaged, such a vertical tomographic layer of the incisor area is determined from the side profile x-ray image in question that would be optimal in view of the layer becoming imaged sharp in panoramic x-ray imaging of the dental arch and, subsequently, the imaging means (14, 15) are driven during the panoramic exposure in such a way that the layer chosen from the side profile x-ray image becomes imaged sharp in the panoramic x-ray image.