7 results about "TOOTH SIZE" patented technology

The utility model discloses a multipurpose measuring scale for dental diagnosis and treatment, which comprises a measuring scale body and a sliding component, the measuring scale body comprises a horizontal scale, a Y-shaped fork, a side arm and a side stick, the Y-shaped fork is fixed at the upper end of the horizontal scale, and the sliding component comprises a measuring scale sliding block and a sliding block locking screw. The measuring scale sliding block comprises a measuring scale sliding block component A, a measuring scale sliding block component B, a measuring scale sliding block component M and a sliding block assembling screw. The multifunctional measuring device is a single multifunctional measuring device for measuring the length and width of a dental arch, the occlusion horizontal plane of a false tooth, the vertical suction distance, the size of the tooth, the size of an interdental space and the like, and plays an important role in the diagnosis and treatment processes of complete false teeth, immediate false teeth, movable partial false teeth, complete reconstruction, implant support false teeth or fixed complete dental arch repair; the novel multifunctional measuring scale is used for replacing various traditional measuring tools, so that the tool types in dental diagnosis and treatment are greatly simplified.

The invention discloses a large and small tooth surface local deformation identification system and method based on image processing, and belongs to the technical field of tooth surface local deformation identification. A large and small tooth surface local deformation identification system based on image processing comprises an image acquisition module used for acquiring local image data of a large and small tooth surface from front and side angles in real time, an image analysis module used for performing multi-category integration on images, screening high-quality images, performing noise reduction and enhancement processing and graying the images, and a large and small tooth surface local deformation identification module used for identifying the large and small tooth surface local deformation. And then gear contour key points are extracted to establish an absolute coordinate system, the image processing module compares a received image with original accurate image data to obtain qualified and unqualified image data, and the information output module transmits the qualified and unqualified image data to a display device. According to the large and small tooth surface local deformation recognition system based on image processing, the tooth size and tooth surface local deformation can be quickly recognized in mass production through the system.

The pair of adjustable dental forceps comprises a first forceps body and a second forceps body, the middle positions of the first forceps body and the second forceps body are hinged, and the tail ends of the first forceps body and the second forceps body form an operating end; the pliers further comprise pliers heads, the pliers heads are installed at the head positions of the first pliers body and the second pliers body in a telescopic rotating mode, and each pliers head can be stretched relative to the pliers body or the working angle can be adjusted; and the spacing-adjustable contact head is arranged on the contact surface of the forceps head and the teeth, and the contact surface is adjusted according to the size of the teeth. According to the utility model, the clamping area of the forceps head can be adjusted according to the width of teeth, and the angle and extension length of the forceps head relative to the forceps body can be adjusted, so that the flexibility and efficiency of tooth extraction operation are obviously improved.

This invention relates to the field of dental restoration technology and discloses a method for fabricating a 3D-printed resin filling guide. In clinical practice, the affected tooth is prepared and color matched. Three-dimensional data of the patient's upper and lower jaw dentition and the prepared abutment tooth data are obtained through digital oral scanning, along with the occlusal relationship. The abutment tooth data includes the abutment tooth size, axial direction, and gingival margin morphology. The 3D-printed resin filling guide fabrication method provided by this invention, utilizing digital design and 3D printing technology, creates a resin filling guide that meets the patient's personalized needs. This fundamentally overcomes many drawbacks of existing dental resin restoration techniques, achieving precision, personalization, and minimally invasive dental resin restoration, while improving clinical operational efficiency and patient satisfaction with aesthetic treatment.

The utility model relates to the field of spherical tooth measurement, in particular to a hard alloy spherical tooth size measuring instrument, which comprises an amplifying mechanism, a measuring mechanism and a control mechanism, and is characterized in that the amplifying mechanism comprises a projector for emitting light to spherical teeth to amplify the projection of the spherical teeth; the placing mechanism comprises a placing seat for placing the spherical teeth and a power piece for driving the placing seat to rotate; the scale plate is suitable for receiving the amplified projection of the spherical teeth, and scales are arranged on the surface, facing the spherical teeth, of the scale plate, so that the amplified projection of the spherical teeth is located at the scales when the spherical teeth rotate; a bottom plate, wherein a lens of the projector and the placing seat are on the same straight line; the power piece is a motor; the bottom of the placing seat is connected with a rotating shaft of a power piece, and the power piece is a stepping motor; the placing seat is disc-shaped; and the center of the placing seat is connected with a rotating shaft of the power piece. The utility model provides a hard alloy ball tooth size measuring instrument which reduces errors of measuring ball teeth.

The utility model relates to technical fields, concretely is free end molar implantation positioner, including clamping part and the adjusting part of fixed above clamping part, the clamping part includes the main chuck and the auxiliary chuck of opposite setting, the limiting arm of fixed above auxiliary chuck and the locating arm of fixed in auxiliary chuck side, the limiting arm is L type, one end of limiting arm is above the space between main chuck and auxiliary chuck, be equipped with the locating hole on the locating arm, and the adjusting part is used for controlling the distance between main chuck and auxiliary chuck. This kind of implantation positioner is embraced with adjacent tooth with main auxiliary chuck, cooperates adjusting part and limiting arm, breaks through the limitation of traditional dependence on former implantation, accurately determines the implantation site, reduces the operation risk, promotes the repair efficiency, and simultaneously, its flexible adjustable, quick dismounting characteristics, adapt to different adjacent tooth size, greatly shorten the operation time, significantly enhance clinical operation convenience, also help to reduce the operation risk, bring more safe, more comfortable treatment experience for the patient.

A system generates panoramic images of a patient from multiple two-dimensional x-ray projection images. The system includes an x-ray source, x-ray detector, and x-ray collimator with a variable aperture size. The aperture defines an exposure region on the detector with corresponding variable size. A controller defines a focal curve relative to the patient's oral cavity, following the jawbone shape with molar and incisal regions. The focal curve has predefined thickness exceeding the teeth size to be imaged. The controller acquires images by rotating the source, collimator, and detector around the patient's head along a predefined trajectory, with the collimator positioned between the patient and source. During acquisition, the aperture width continuously varies, using a wider aperture for the molar region and narrower aperture for the incisal region. Simultaneously, the detector's readout region continuously varies horizontally to equal or exceed the variable exposure region size.