A method for making a dental appliance configured to position at least one tooth of a patient includes printing a hardenable liquid resin composition on a major surface of a polymeric material to form a pattern thereon, wherein the hardenable liquid resin composition includes a glass ionomer, a resin modified glass ionomer, and mixtures and combinations thereof. A dental appliance is formed from the polymeric material that includes an arrangement of cavities configured to receive one or more teeth.

A photosensitive pressure alarm device for electric cleaning care appliances comprises at least one light source, at least one photosensitive unit, a light reflecting surface, a detection circuit, and an alarm portion. The light source and the photosensitive unit are provided on a movable component or a movable component on a same side, and the light reflecting surface is provided on a stationary component or the movable component. Under the combined action of an external force (F.sub.1) and an elastic force (F.sub.2), the light reflecting surface or the light source and the photosensitive unit provided on the movable component can move with the movable component, and the incident angle and the reflection angle of the light on the light reflecting surface change, causing that the light receiving area of the photosensitive unit changes, and in turn resulting in change of the electrical performance of the photosensitive unit.

A device for reducing aerosols and removing intraoral fluid, having an aerosol removal port and an aerosol assist body assembly. The aerosol removal port has an aerosol removal port wall, a lip constriction, and an anchor. The aerosol assist body assembly has a body wall, first and second passages, and a back flow union. The device is a suction device to reduce aerosol dispersion, and removing intraoral fluids.

Some embodiments of the present application disclose an auxiliary orthodontic device for a shell-like dental appliance. The auxiliary orthodontic device including: a functional component and a retaining component provided separately from the functional component. The retaining component is connected to the functional component, at least one of the functional component and the retaining component passes through a shell-like dental appliance, the functional component is retained on the shell-like dental appliance, and the functional component is provided on an outer surface of the shell-like dental appliance. The auxiliary orthodontic device for a shell-like dental appliance provided by the present application enables a shell-like dental appliance and an auxiliary device to be assembled together easily and stably, and a corresponding auxiliary device can be selected and used based on orthodontic requirements, thereby achieving a corresponding orthodontic function.

A removable dental appliance may include an appliance body configured to at least partially surround a plurality of teeth. The appliance body may include a unitary material defining a shell shaped to receive at least one tooth of the patient; a spring member integrally formed with the shell; and a positioning member integrally formed with the shell. The spring member may be configured to receive an attachment affixed to the at least one tooth. The spring member may be configured to apply a spring force to the attachment to cause movement of the at least one tooth toward a desired position when the removable dental appliance is worn by the patient. The positioning member may be configured to facilitate engagement of the spring member with the attachment in response to a positioning force being applied to the positioning member.

A system and method for orthodontic appliance configuration are provided. A method includes obtaining a force value which approximates a target orthodontic force value having been determined based on patient data and PDL behavior data associated with the patient data. The patient data includes patient treatment data and patient characteristic data, the patient treatment data at least including one or both of a tooth type indicator and a tooth position indicator associated with a tooth of a patient to be treated and a treatment movement value which describes the required tooth movement to effect treatment of the tooth. The force value is used to determine configuration parameters for configuring an orthodontic appliance to apply the force value to the tooth of the patient. The configuration parameters are output.

An automated dental drill includes a dental drill housing that includes a mouthpiece housing section and a one or more degrees of freedom drive housing section; an end effector drive support having a shaft section that is at least partially positioned in the mouth piece housing section, and an end effector for the cutting of a native tooth or dental appliance to a desired tolerance. The end effector is positioned on the end effector drive support. The automated dental drill also includes a power source that drives the end effector and is coupled to the end effector and a one or more degrees of freedom drive assembly to direct the end effector along one or more degrees of freedom relative to the mouth piece housing section.

Luminous dental floss of the present application includes dental floss, an illumination system, and a handle. The dental floss is detachably connected to the handle. The illumination system includes a light source system, a circuit system, a switch, and a power supply system. The light source system is connected to the power supply system through the circuit system. The circuit system and the power supply system are mounted in the handle, and the switch is mounted on the handle. Illumination light emitted by the light source system can illuminate an oral cavity, and especially an observation window is designed on the luminous dental floss of the present application. During use, under the illumination of the illumination system, a process of the dental floss entering a gap between teeth can be directly observed, thereby facilitating cleaning and effectively avoiding accidental injury to gingivae.

The improved dental milling disc device is an apparatus that includes an innovative configuration of a dental milling disc and a gasket, designed to eliminate the risks of cracking and damage due to the vibration of manufacturing machines. To accomplish this, the apparatus includes at least one gasket attached perimetrically around opposing edges of the disc. Accordingly, the dental milling disc device allows the machine holder to be properly tightened to hold the disc in place while significantly reducing the risk of cracking the disc. Furthermore, the apparatus reduces the potential for the disc to rotate in the holder or move due to vibration as the gasket of the device better secures the disc in place and dampens vibrations. Additionally, the dampening effect of the apparatus helps increase the tool life. Thus, the apparatus enables an efficient and cost-effective utilization of the milling disc.

Disclosed is a multi-functional visual electric toothbrush, including a main unit, an oral viewer, an interdental cleaning appliance and an electric toothbrush head. The oral viewer is connected to the main unit, the interdental cleaning appliance is connected to the front end of the oral viewer, and the electric toothbrush head is connected to a toothbrush driving mechanism. A circuit system and a control system of the main unit can not only transfer the energy of a power supply to the toothbrush driving mechanism, so as to drive the electric toothbrush head to work for large-area oral cleaning, but also connect a lighting system, an observation system and a switch of the oral viewer to control the oral viewer to work. The interdental cleaning appliance may be used cooperatively with the oral viewer to perform targeted cleaning on difficult-to-clean food debris in an oral cavity.