40 results about "Lower anterior" patented technology

An intra-oral, semi-custom, separating device, worn over the upper anterior teeth, allowing at least one lower anterior tooth to contact the rear of the device within the freeway space between upper and lower jaws at physiologic rest. The device allows for deprogramming and releasing of the muscles of the upper and lower jaw. The device is composed of an extruded or molded shell composed of a hard polycarbonate or similar plastic material and fits over the upper anterior teeth. The internal surface of the shell is lined with a thermoplastic with a low molding temperature. The thermoplastic allows the user to mold the internal aspect of the device onto and over the teeth to produce a custom fit, which relieves the user of the stresses, strains, pains and damage that can be caused by parafunctioning of the dental neural-muscular system.

A recording medium after printing which is discharged from a main body of a printer is guided from the main body to a support surface of a discharge support portion extending to a lower anterior side, and is wound as a roll body by a winding unit in a path that passes a tension roller. A tape-shaped elastic member is fixed on an end portion of a downstream side in a transport direction of the discharge support portion so as to extend in a width direction. An elastic friction surface is formed on the end portion of the downstream side in the transport direction of the support surface. A friction coefficient between the elastic friction surface and the recording medium is higher than the friction coefficient between a portion at an upstream side in the transport direction from the elastic friction surface in the support surface and the recording medium.

A mandible repositioning appliance is provided comprising an anterior member adapted to receive anterior teeth; first and second posterior members, each adapted to receive posterior teeth, wherein each posterior member comprises an occlusal pad support; and a positioning guide formed between the anterior member and each of the first and second posterior members, wherein said guide functions to position the user's mandible into an anatomically correct position achieved when each positioning guide is in position resting between the third and fourth upper and lower anterior teeth when the appliance is in place in the user's mouth.

A bite piece is provided for use with a dental x-ray system. A substantially straight first portion extends to a curved second portion. An end of the second portion opposite the first portion has a region of reduced cross section adjacent the end of the second portion. The region is received between a patient's opposed upper and lower anterior teeth to secure the patient's head position during operation of the dental x-ray system. The region and the second portion substantially lack transitional edges, improving each of the quality of a radiograph produced during operation of the dental x-ray system, a patient's level of comfort and stability of the patient's head position.

Improved pacifiers are provided. Certain embodiments better accommodate the anatomy of the human oral cavity and throat, and can provide for improved airway patency, healthy jaw development, correct swallowing, and/or satisfy a user's inclination to suck and nibble. Certain embodiments include an upper ridge groove configured to receive a user's upper anterior ridge, and a lower ridge groove configured to receive the user's lower anterior ridge. The ridge grooves can be substantially vertically aligned, can span a user's anterior ridges, and can maintain vertical spacing between the user's anterior ridges. Certain embodiments include an anterior flange and a posterior flange, the upper ridge groove configured to receive the upper anterior ridge between the posterior flange and anterior flange, and the lower ridge groove configured to receive the lower anterior ridge between the posterior flange and anterior flange. Certain embodiments include a nipple projecting substantially vertically from the posterior flange.

An intraoral discluding appliance for the prevention of trauma and temporomandibular joint syndrome. The device is a small intraoral device that is custom made for each individual patient. The device includes two discluding elements over the cuspid areas known as cuspid pads. The device is inserted in the mouth and retained against the upper or lower anterior teeth. Typically, the device will be retained on the upper anterior teeth but occasionally mandible placement is necessary. As the mouth is closed, the discluding elements contact the opposing cuspids and prevent the posterior teeth from touching. This effectively reduces parafunctional temporal muscle activity, eliminates trauma, and prevents bruxism. The device is removable and may be worn full time, but is typically removed at least during meals and for cleaning. Additionally, the device may be worn only part time, for example it may be used as a bedtime appliance.

The invention provides an expansion type muscular activator for correcting class-II malocclusion. The muscular activator comprises a denture, and is characterized in that the denture is formed by a left denture and a right denture, and comprises an upper anterior tooth plastic cap and a lower anterior tooth plastic cap which are worn in the anterior tooth region, a palate denture, a vertical wing plate and an interocclusal part, wherein the palate denture is positioned at the oral palatal shelf part and the vertical wing plate is positioned on the tongue side of the lower dentition when the activator is worn; the interocclusal part is positioned between the backteeth occlusal surfaces of the upper jaw and the lower jaw; and the distal of the denture reaches the distal of the first molar of the upper jaw and the distal of the first molar of the under jaw. The expansion type muscular activator also comprises a screw and two draw hooks, the left denture and the right denture are connected by virtue of the screw; and the draw hooks correspond with mesial of canine teeth on two sides of the upper jaw. The expansion type muscular activator is reasonable in design, low in cost and convenient to wear, and is suitable for patients with early class-II high-angle malocclusion, especially cases of incompetent lips.

The invention relates to an earphone with an adjustable sound direction or stereo effect. The earphone comprises (a) an ear loop unit, (b) an earmuff unit, (c) an adjustable bracket unit, (d) one or more adjustable earphone loudspeaker units and (e) an adjustment unit, wherein the ear loop unit comprises an upper anterior auricular piece, a lower anterior auricular piece and a retroauricular piece; the earmuff unit consists of a sound filtering unit used for blocking and guiding sounds and a shell with a shell connector; the adjustable bracket unit is connected with the ear loop unit and arranged on the shell of the earmuff unit; the one or more adjustable earphone loudspeaker units are arranged on the shell and in the earmuff unit; and the adjustment unit comprises a bendable support part with a first end part and a second end part. By the adjustable earphone provided by the invention, a user can conveniently regulate a center loudspeaker of the earphone even the whole earphone to achieve the stereo effect, and any discomfort generated by the earphone can be prevented.

The invention relates to the technical field of medical biomaterials. Cataract treatment becomes the ophthalmic clinical attention focus and a main treatment means comprises combination of lens extraction and artificial lens implantation. At present, the main clinical problem comprises intraocular pressure increasing caused by a low anterior lens capsule tear success rate and residual of a viscoelastic agent in the eye. The invention provides the preparation method of the ophthalmological viscoelastic agent with the selective anterior capsule staining function. The preparation method comprises adding a Trypan blue staining agent with a concentration of 0.002-0.6% into a material and carrying out high temperature and high pressure sterilization. The use of the staining agent does not change viscoelastic agent gel properties and an in-vitro release rate in 60min is about 15% so that the staining agent can be continuously and slowly released to an operation part so that selective staining is realized and damage to tissue cells is prevented. Based on the characteristic, the viscoelastic agent can be effectively removed through staining agent instruction after an operation.

The invention discloses a lower anterior tooth resin filler comprising a rod body (1), an upper filling head (2) and a lower filling head (3). The upper filling head (2) and the lower filling head (3) are respectively arranged at both ends of the rod body (1). The lower anterior tooth resin filler is characterized in that the upper filling head (2) comprises an upper straight plate part (4) and an upper bending part (5) in seamless transition with the upper straight plate part (4); and the lower filling head (3) comprises a lower straight plate part (14) and a lower bending part (5) in seamless transition with the lower straight plate part (14). The lower anterior tooth resin filler has simple structure, reasonable design, smart concept and flexible operable angle and can constantly keep favorable surface contact between the filling head and the resin filling.

The invention discloses an orthodontic correction auxiliary device used for anterior teeth, and an orthodontic correction device. The orthodontic correction auxiliary device is fixed on an orthodonticcorrection device. The orthodontic correction device comprises an upper anterior tooth dental crown cover and a lower anterior tooth dental crown cover. The auxiliary device comprises upper jaw anterior tooth occlusion positioners and lower jaw anterior tooth occlusion positioners, wherein the upper jaw anterior tooth occlusion positioners and lower jaw anterior tooth occlusion positioners are distributed and fixed on the outer walls of the upper anterior tooth dental crown cover and the lower anterior tooth dental crown cover; the upper jaw anterior tooth occlusion positioners are fixed on the outer wall of the palate side of the upper anterior tooth dental crown cover; and under an occlusion state, the center of the contact surface of each upper jaw anterior tooth occlusion positioner and each lower anterior tooth dental crown cover is positioned on a lower anterior tooth occlusion vertical line. Through the transparent correction device provided with the occlusion positioners, an occlusion relationship in a correction process and after correction is improved, a stable occlusion function is obtained for a patient, and the defects in clinical application that due to an occlusionproblem, restarting needs to be carried out, the transparent correction device needs to be manufactured again, or an occlusion problem needs to be corrected through a method that a fixed correction device needs to be clinically utilized can be eliminated.

The invention discloses a manufacturing method and application of a pressed film material functional appliance, and belongs to the technical field of oral treatment. The manufacturing method comprisesthe following steps: preparing an impression, wherein preparing upper and lower jaw tooth retention film; transferring a occlusal relationship; reconstructing occlusion; fixing and reconstructing theocclusal relationship wherein blending a dental self-setting plastic material, and fixing and connecting rear tooth sections of the upper and lower jaw tooth retention film into a whole at the reconstructed occlusal relationship position; removing the lower anterior tooth retention film: cutting off the lower anterior tooth retention film. According to the manufacturing method, the lower jaw dentition ultrathin retention film is moved forwards by 4-8 mm to be fixed to the ultrathin retention film of the upper jaw dentition, the ultrathin retention film of the lower jaw anterior teeth is removed, and a space and a channel for free movement of the tongue body when the mouth is opened for speaking are reserved.

The invention provides a forward mandibular positioning device for orthodontics. The forward mandibular positioning device for orthodontics comprises an upper appliance, a lower appliance, upper forward positioning force-augmentation parts and lower forward positioning force-augmentation parts; the upper appliance comprises upper retention parts, which are arranged on at least one molar tooth of teeth at two sides of the upper jaw in a sleeving manner; the upper retention parts at two sides are connected through an upper jaw connection part; the lower appliance comprises lower retention parts,which are arranged on at least one molar tooth of teeth at two sides of the lower jaw in a sleeving manner; the lower retention parts at two sides are connected through a lower jaw connection part; the upper forward positioning force-augmentation parts are fixed on the outer side surfaces of the upper retention parts; the lower forward positioning force-augmentation parts are fixed on the outer side surfaces of the lower retention parts; the surface of the front part of each upper forward positioning force-augmentation part is provided with an inclined surface; the inclined surfaces are guideinclined surfaces of the forward mandibular positioning device; and the lower forward positioning force-augmentation parts perform reciprocating rolling/sliding on the inclined surfaces, so that theforward mandibular positioning effect is achieved. The forward mandibular positioning device in the invention is fixedly installed on the teeth at the back of the upper and lower jaws; and thus, forward mandibular positioning and correction of upper and lower anterior teeth can be synchronously carried out.

The invention discloses an upper anterior tooth resin filler comprising a rod body (1), an upper filling head (2) and a lower filling head (3). The upper filling head (2) and the lower filling head (3) are respectively arranged at both ends of the rod body (1). The upper anterior tooth resin filler is characterized in that the upper filling head (2) comprises a straight plate part (4) and a bending part (5), and the lower filling head (3) comprises a straight lower filling head (11) and a bent lower filling head (12). The lower anterior tooth resin filler has simple structure, smart design, convenience and rapidness in use and strong operability.

An assembly type rod for an occlusal plane taking is presented. An assembly type rod according to one embodiment comprises: a bite rod of which the middle portion thereof is placed between the upper and lower anterior teeth of a patient to obtain information of the frontal occlusal plane parallel to the interpupillary line; and an extension portion which is coupled to the bite rod in the form of a ball-and-socket through a ball-shaped coupling portion and is rotatable in a state of being coupled with the bite rod such that information of a lateral occlusal plane according to Camper's line on both sides can be acquired.

The invention relates to an orthodontic technology for correcting malposed tooth deformity. The orthodontic technology comprises three stages of operation steps, wherein the first stage is an occlusion opening stage, and is used for a patient who deeply covers and occludes upper and lower teeth and does not completely leak lower anterior teeth; the second stage is a gap closing stage, and is used for a patient who closes a gap during tooth extraction; the third stage is a fine adjustment stage, and is used for adjusting the occlusion tightness of upper and lower jaws in the later period. In order to overcome the defects in the prior art, a thermal activation arch wire has the advantages that the gap can be closed while the arch wire is aligned, and a special thermal activation rocking chair arch wire is required to be matched during gap closing, so that the normal inclination of anterior teeth can be effectively controlled and maintained when the tooth extraction gap is closed by the arch wire in the mode; due to the thermal activation performance, the gap can be closed while the arch wire is aligned, so that the treatment period is greatly shortened.

The invention relates to a removable covering type invisible plane guide plate, an invisible orthodontic device and a manufacturing method of the invisible plane guide plate, the removable covering type invisible plane guide plate comprises a cavitation bubble type flat guide area and two-side retention areas, and the retention areas are used for wrapping and covering a conventional orthodontic appliance. The invisible orthodontic device comprises a transparent orthodontic appliance and a removable covering type invisible plane guide plate. The removable and wearable covering type invisible plane guide plate is compatible with an existing invisible correction system, can assist the existing invisible correction system to realize the correction purpose of occlusion opening, and does not influence the use of a conventional correction appliance; the cavitation bubble type flat guide area can provide a lower anterior tooth occlusion area with a large area, and for a deep occlusion patient, the back teeth can be effectively cushioned open, the occlusion contact force of the back teeth is eliminated, the back teeth are elongated, and the occlusion can be effectively opened; due to the design of the hollow three-dimensional parallel guide occlusal area, the hardness of the occlusal area is ensured, a certain elasticity and deformable range are provided, a patient can adapt to the occlusal area more easily, and the wearing feeling is more comfortable.

The invention discloses an invisible appliance for lowering mandibular anterior teeth, the invisible appliance comprises an invisible appliance body, a lowering module, a chin pocket and an elastic piece, both ends of a lowering cross rod are provided with hooks, the surface of the chin pocket is uniformly adhered with fixing hooks, one end of the elastic piece is fixedly connected with the hooks, the other end of the elastic piece is fixedly connected with the fixing hooks, and the chin pocket is fixedly connected with the lowering module through the elastic piece. One end of the elastic piece is connected with the two ends of the depressing cross rod through the bent hooks, the other end of the elastic piece is connected with the chin pocket through the fixing hooks, and the pulling force of the elastic piece acting on the depressing module can be adjusted by connecting the fixing hooks at different positions of the surface of the chin pocket, so that the pressure of the depressing module acting on the lower anterior teeth is adjusted, meanwhile, the bracket does not need to be adhered in the oral cavity, the comfort is good, the integrity of the invisible orthodontic appliance body cannot be damaged, the invisible appliance body can integrally lower anterior teeth, and the force application is uniform.

An invisible device for lowering anterior teeth, rising posterior teeth and opening occlusion in the invisible correction process comprises a correction device, a retention nail hole is formed in the correction device, a personalized occlusion plane guide plate is further arranged on the correction device, and the personalized occlusion plane guide plate is attached to the palate side of maxillary incisor teeth or canine teeth; a hole is formed in the palate side face of anterior teeth of an upper jaw appliance needing to be opened for occlusion, and an occlusion plane guide plate is additionally arranged outside the palate side face of the upper jaw appliance, so that the anterior teeth of a lower jaw are occluded on the occlusion plane guide plate, the posterior teeth are separated, and the purposes of lowering the anterior teeth and raising the posterior teeth are achieved. The preparation is convenient, the cleaning is easy, and the retention is enhanced; the device can be independently placed on incisor teeth or canine teeth, and can also be placed on both the incisor teeth and the canine teeth.