A method and system for fabricating a dental appliance for orthodontic treatment. The method comprises the steps of obtaining three-dimensional dental data from a patient scan, locating initial tooth positions, generating optimal arch forms, and determining a digital model for fabricating an orthodontic aligner with additive device. The system comprises a scanning apparatus to acquire three-dimensional dental data, and a computer apparatus programmed with instructions for generating optimal arch forms, and determining a digital model for fabricating an orthodontic aligner with additive device.

An image processing system processes a read signal read from an imaging plate on which a radiographic image is recorded to generate an X-ray image. The image processing system performs signal processing on the total output area included in the read signal such that the degree of change in density regarding a partial attention region according to the purpose of observation is larger than the degree of change in density regarding the non-attention region other than the attention region.

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 mouthpiece 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 mouthpiece housing section.

The infrared alignment guide for an x-ray machine is used to align a target tooth and an x-ray sensor with transmitted x-rays, as well as aligning the transmitted x-rays with a most effective orientation for imaging the target tooth. The guide includes a body having an attached x-ray sensor holder. The x-ray sensor holder may be adjusted in relation to the body for imaging different teeth. The x-ray sensor holder emits infrared light towards the body, which is detected by an infrared camera on the front of the body. The image produced by the infrared camera, which shows the crowns of the teeth, is used to align the transmitted x-rays with the tooth and the x-ray sensor holder.

The invention relates to a problem of setting mutual position of an anatomy being imaged and imaging means of a computed tomography imaging apparatus so that specifically the very volume of the anatomy desired to be imaged actually is imaged. To further the positioning, a positioning tool in a form of a three-dimensional virtual positioning model (40), generated from the anatomy to be imaged, is shown on a display from which the volume (41) of the anatomy desired to be imaged can be pointed, selected or defined.

Magnification glasses comprising: a first camera array comprising at least a first camera and a second camera wherein each of the first camera and the second camera provide different magnification for capturing a magnified image in the field of view of the glasses, wherein the first camera and the second camera have the same working distance.

The disclosure is related to a panoramic radiography device. The panoramic radiography device may include a memory, an image processor, and a display. The memory may be configured to store a plurality of image frame data. The image processor may be configured to i) reconfigure a first panoramic image associated with at least one first image layer using a first group image frame data among the stored plurality of image frame data and ii) reconfigure a second panoramic image associated with at least one second image layer using one of a) a part of the first group image frame data and b) a second group image frame data have at least one part different from the first group image frame data. The display may be configured to display the first and second panoramic images.

A dental implant and final prosthetic placement system for small-diameter implants (and method for using the system) in which a final prosthetic is digitally designed and created, and is itself used as the drill guide to place the implants. The final prosthetic is held in the predetermined proper drilling position by a stent, such as an occlusal guard. The combination of final prosthetic (with holes through which the small-diameter implants are drilled to secure it) and the stent encasing the final prosthetic, is itself the drill guide.

Apparatus for improving image guidance in radiation therapy applications are described. In one aspect, a patient support with integrated radiopaque markers is described. In another aspect, a bite block with integrated sensors, radiopaque markers, or both, is described. The integrated sensors may include a radiation detector, a pH sensor, or both. Radiation detectors that may be used include a dosimeter. As an example, the dosimeter may include a film dosimeter, an ion chamber dosimeter, a diode dosimeter, or other suitable dosimeters and combinations thereof.

A back illuminated sensor preferably is included as a collector component of a detector for use in intraoral and extraoral 2D and 3D dental radiography, positron emission tomography (PET) and single-photon emission computed tomography (SPECT). The disclosed imaging method includes one or more intraoral or extraoral emitters for emitting a low-dose gamma ray or x-ray beam through a dental examination area; and one or more intraoral or extraoral detectors for receiving the beam, each detector including a back illuminated sensor. Within the detector, the beam preferably is converted into light and then focused and collected at a photocathode layer without passing through the wiring layer of the back illuminated sensor.