11 results about "Upper dentition" patented technology

The invention discloses a model for screening temporal-mandibular joint disc anterior displacement. TMJ ADD risk probabilities are output according to data of a plurality of key features. Wherein the key features comprise the opening degree, the lateral movement of the left side of the lower jaw, the lateral movement of the right side of the lower jaw, the crowding degree of the upper dentition, the Wits value, the FH-NPo angle, the Co-Go, the ALFH / PLFH ratio and the G '-Sn-Pog' distance. After network deployment of the constructed model, interconnection and intercommunication are realized, so that primary hospitals and clinics can also utilize related indexes of a skull lateral position film in orthodontic routine examination and clinical examination results to screen the risk of temporal-mandibular joint disc anterior displacement before orthodontic treatment, the popularization rate of joint screening before orthodontic treatment can be greatly improved, and the screening efficiency of the joint before orthodontic treatment is improved. Therefore, the effect of clinical orthodontic treatment is guaranteed as a medical instrument.

The present disclosure provides methods, computing device readable medium, and devices for dental appliances with repositioning jaw elements. An example of a method can include moving at least one tooth with a dental appliance having a first shell configured to receive a plurality of teeth of a patient's upper dentition and separating an upper dentition of a patient from a lower dentition of the patient utilizing the dental appliance. The dental appliance may interface a first surface of a first repositioning jaw element of the first shell with a second surface of a second repositioning jaw element of a second shell of the dental appliance. The dental appliance separates occlusal surfaces of the plurality of teeth of the patient's upper dentition from occlusal surfaces of the plurality of teeth of the patient's lower dentition as the patient moves to a fully engaged sagittal jaw position.

The utility model discloses an invisible appliance for class III malocclusion. The invisible appliance comprises an appliance main body structure, a stable occlusal pad, an appliance stable occlusal pad anastomosis window, an extension cavitation bubble, an appliance traction window, a traction device, a retention accessory cavitation bubble, a retention accessory and a force application device, the main body structure of the appliance is made of a transparent high polymer material, and the whole structure is integrally formed and used for connecting all parts of the appliance and assisting in beautifying and fixing; the stable occlusal pad is arranged in a rear tooth area of the upper dentition or the lower dentition and is used for providing an extension gap and a stable occlusal effect for teeth of the upper dentition and the lower dentition; the elongated cavitation has a fixed structural height, and the height of the elongated cavitation is determined by the distance between the inner side wall of the elongated cavitation and a clinical dental crown reference point of the tooth; the appliance traction window is arranged on the cheek side surface, corresponding to teeth, of the elongated cavitation bubble and is used for mounting a traction device. The utility model solves the problems of contradiction between aesthetics and application range, insufficient correction stability, long treatment period, functional limitation and the like of the existing appliance.

The utility model discloses a shell-shaped dental instrument which comprises a first shell-shaped body and a second shell-shaped body, the first shell-shaped body and the second shell-shaped body are used for containing an upper dentition and a lower dentition respectively, and the first shell-shaped body and the second shell-shaped body are provided with a guide block and a guide block in a protruding mode in the direction opposite to the jaw on the occlusal face of a rear tooth area respectively. The guide surface of the guide block interacts with the guide surface of the guide block and guides the lower jaw to move from an initial position to a target position in the sagittal direction, an occlusal stabilizing part is arranged on the occlusal surface, facing the opposite jaw, of the guide block, and the occlusal stabilizing part is used for enabling the guide block and the second shell-shaped body to be stably occlusal at the target position in the sagittal direction when the lower jaw moves to the target position. An auxiliary occlusion part is arranged on the occlusal surface, facing the opposite jaw, of the guide block, the surface, facing the opposite jaw, of the auxiliary occlusion part is a plane, or the protruding height of the guide block meets the requirement that when the guide block is located at the target position, a gap is formed between the surface, facing the opposite jaw, of the auxiliary occlusion part and the surface of the corresponding occlusion position of the first shell body of the opposite jaw.

The utility model discloses a buckle connecting device based on bracketless invisible corrector. The device includes bracketless invisible corrector, connecting groove body and connecting head, and the front part of bracketless invisible corrector is provided with connecting groove body, and bracketless invisible corrector and connecting groove body are integrally made, and connecting head is connected with bracketless invisible corrector by cooperation with connecting groove body, and connecting groove body and connecting head are all provided with arc part that is in accord with the front side of bracketless invisible corrector, and the arc part between connecting groove body and connecting head is connected through ball head structure. The device can conveniently and stably install components to upper dentition or lower dentition, and can extend to outside of oral cavity through connecting head, and does not need glue and tooth abrasion, and is a non-invasive, convenient and painless connecting device.

The utility model belongs to the field of orthodontic instruments, and discloses a mandibular leading appliance which is an occlusion inducing appliance and comprises an appliance body with an upper accommodating groove and a lower accommodating groove, the upper accommodating groove is used for accommodating an upper dentition of a user, and the lower accommodating groove is used for accommodating a lower dentition of the user; the backward offset distance of the lower accommodating groove relative to the upper accommodating groove is smaller than the coverage distance of a user; the condition that the mandible of a child retracts can be effectively improved.

This utility model discloses a device for overall indentation and retraction of the upper dentition. It comprises a support frame, archwire, fixation components, and anchorage screws. The connecting portion of the support frame can be installed on the patient's palate, and the fixation portions at both ends of the connecting portion are connected to the patient's posterior teeth. Some of the fixation components are located in the fixation portions, while others are installed on the patient's tooth surfaces. In its natural state, the archwire, which is warped at the ends and middle, is constrained by the fixation components. The anchorage screws are positioned corresponding to the fixation portions and are connected to the fixation section located between the ends and middle of the archwire via a first elastic element. The support frame, which is subjected to tongue pressure, the elastically deformable archwire, and the first elastic element together provide indentation force to the patient's maxillary teeth, thereby achieving an overall indentation effect on the patient's upper dentition. This allows for the correction of gummy smiles without the need for a large number of anchorage screws.

The present invention relates to a device made of silicone or another polymer material that preferably covers the teeth from tooth number 7 to tooth number 16 on the left part of the patient's upper dentition. The protector includes a metal reinforcement or wire on the lower part on which the blade of a laryngoscope can rest and a lever action can be applied to lift the base of the tongue and thus safely expose the patient's glottis without affecting the dentition. The length of the wire is covered by the silicone or polymer material, and each end of the protector has a clamp-shaped reinforcing plate that prevents the protector from moving while the laryngoscopy is being performed. The wire and the reinforcing plates serve to distribute the load exerted during the laryngoscopy procedure, keep the blade away from the dentition and allow safe leveraging. The wire also serves to change the shape of the protector and adapt it to the dental morphology of each patient. This protector does not require sterilisation, only disinfection, and it can be reused.

This toothbrush is used to brush both the upper and lower dentition. As shown in the "Reference Diagram Showing How It Is Used," the top brush brushes the cervical area of ​​the upper dentition (between the crown and gums), the second brush from the top brushes the sides of the crowns of the upper dentition, the upward-facing brushes in the middle of the top and bottom brushes brush the occlusal surface of the crowns of the upper dentition, the bottom brush brushes the cervical area of ​​the lower dentition, the second brush from the bottom brushes the sides of the crowns of the lower dentition, and the downward-facing brushes in the middle of the top and bottom brushes brush the occlusal surface of the crowns of the lower dentition.

The invention relates to a mandibular advancement device with a stabilizing structure. The mandibular advancement device comprises an upper tray assembly and a lower tray assembly, wherein the upper tray assembly is formed by an upper moldable part and an upper support, and the lower tray assembly is formed by a lower moldable part and a lower support. The front side edges, close to the lip side, of the upper support and the lower support extend to form a front wall, and at least the rear side edge, close to the tongue side, of the lower support extends to form a rear wall on the median sagittal plane. The stabilizing structure enables at least the front wall of the upper support to incline towards the lingual side and is used for being attached to the maxillary dentition when the patient is shaped. The rear wall of the lower support and the front wall clamp the mandibular dentition together and also have the function of preventing the lower moldable component from sliding off. In some cases, the stabilizing structure further comprises a molar clamping part, the molar clamping part at least comprises a front wall and a rear wall at the contact position of the upper bracket and the molar, and the mandibular advancement device is more stable through the design of the front wall and the rear wall of the part. The lower jaw advancing device is further provided with protrusions on the upper support and the lower support.

The utility model relates to a mandibular advancement device with a stabilizing structure. The mandibular advancement device comprises an upper tray assembly and a lower tray assembly, wherein the upper tray assembly is formed by an upper moldable part and an upper support, and the lower tray assembly is formed by a lower moldable part and a lower support. The front side edges, close to the lip side, of the upper support and the lower support extend to form a front wall, and at least the rear side edge, close to the tongue side, of the lower support extends to form a rear wall on the median sagittal plane. The stabilizing structure enables at least the front wall of the upper support to incline towards the lingual side and is used for being attached to the maxillary dentition when the patient is shaped. The rear wall of the lower support and the front wall clamp the mandibular dentition together and also have the function of preventing the lower moldable component from sliding off. In some cases, the stabilizing structure further comprises a molar clamping part, the molar clamping part at least comprises a front wall and a rear wall at the contact position of the upper bracket and the molar, and the mandibular advancement device is more stable through the design of the front wall and the rear wall of the part. The lower jaw advancing device is further provided with protrusions on the upper support and the lower support.