46 results about "Dental alveolus" patented technology

The invention relates to a functional dentofacial orthopedic apparatus (1) made of a flexible material and comprising two grooves, the general outer shape of each of which is a flared U when viewed horizontally, the two grooves being separated by a substantially horizontal partition (6). Each groove defines an alveolar canal (4, 5) encompassing the superior and inferior alveolodental arches, respectively, said canal (4, 5) consisting of a labial bar (2) and a lingual plate (3), as well as the horizontal partition (6), the inner surface of each canal being smooth. According to the invention, the apparatus includes: a continuous angled lingual ramp (10) which is intended for supporting and guiding the tongue toward the palate and the upper portion of which consists of a reinforced inner raised portion (9), the general shape of which is flared U and which extends over the inner circumference of the grooves. The cross-section of said raised portion gradually increases from a minimum value at the end of said raised portion to a maximum value in the central portion of the latter.

A method of the invention comprises obtaining training dental CTscans, identifying individual teeth and jaw bone in each of these CTscans, and training a deep neural network with training input data obtained from these CTscans and training target data.A further method of the invention comprises obtaining(203) a patient dental CTscan, identifying(205) individual teeth and jaw bone in this CTscan and using(207) the trained deep learning network to determine a desired final position from input data obtained from this CTscan. The (training) input data represents all teeth and the entire alveolar process and identifies the individual teeth and the jaw bone.The determined desired final positions are used to determine a sequence of desired intermediate positions per tooth and the intermediate and final positions and attachment types are used to create three-dimensional representations of teeth and / or aligners.

The invention discloses a hydroxy apatite / zirconia composite bio-ceramic and a preparation method thereof, and relates to the field of biological materials. The hydroxy apatite powder is taken as the basic material, nano zirconia is taken as the cladding material, and the nano zirconia is coated on the surface of the hydroxy apatite surface; wherein the average particle size of the hydroxy apatite powder is 10 to 50 [mu]m, the thickness of the nano zirconia cladding layer is 100 to 300 nm; and the hydroxy apatite powder is prepared through a precipitation reaction method or a hydrothermal method. The preparation method comprises steps of preparing hydroxy apatite powder, carrying out chemical vapor deposition reactions, and performing high temperature solid state method. The provided hydroxy apatite / zirconia composite bio-ceramic has a high mechanical strength and good biocompatibility, can be used to repair or fill tooth or alveolar cavity and repair bone damage, and can also be used as artificial bone cores to treat bone tuberculosis.

A method is provided that includes advancing a drill having a distal end through an occlusal cortex into trabecular bone of an alveolar ridge, and ceasing the advancing of the drill when the distal end of the drill reaches an occlusal surface of a superior cortex of the alveolar ridge. Other embodiments are also described.

A dental implant abutment assembly imitates a micro-motion mechanism to direct occlusal forces internally, and uniformly distribute the occlusal forces into the body of an ossoeintegrated dental implant. The micro-motion mechanism is configured to imitate the biomechanical behavior of the periodontal ligament through a compressive action that dampens vertical, horizontal, and angular forces. A compressive ring provides a dampening effect to supportive components of the assembly. A compressive coil redirects vertical forces along a longitudinal axis of the assembly. An implant body osseointegrates into the dental alveolus. A central mobile element seats in the dental body. The compressive coil extends along the central mobile element to absorb vertical forces. The compressive ring seats on the collar of the dental implant. A threaded cannulated housing securely holds the central mobile element and the compressive coil to form a single unit. A restorative abutment portion threadably seats on the central mobile element.

A gingival tissue retractor for retracting gingival tissue away from tooth and bone during a surgical procedure having an alveolar bone grip having an open frame structure positionable over at least one tooth and along a predetermined segment of an alveolar bone and providing an inward resilient force about opposite sides of the alveolar bone for maintaining position of the gingival retractor; a first gingival reflector having a solid plate structure and attached to a lower section of one side of the alveolar bone grip for providing a primarily downward force to gingival tissue on one side of the alveolar bone; and a second gingival reflector having a solid plate structure and attached to a lower section of another side of the alveolar bone grip for providing a primarily downward force to gingival tissue on another side of the alveolar bone.

The invention relates to a medical tool and to a method for using the medical tool for removing tooth fragments, in particular tooth roots and / or remainders of tooth roots, from a tooth socket or an alveole in the region of the jaw.

The invention belongs to the technical field of tooth washer, and discloses an intelligent tooth washer capable of all-round detection and tracking of health, comprising a connecting rod and a monitoring component, a tooth cleaning component is arranged at the top of the connecting rod, and the tooth cleaning component It includes a water supply part and an arc-shaped plate that matches the curvature of the dental arch. Alveoli are opened on the upper and lower walls of the arc-shaped plate. Cleaning water is conveyed in the groove so that the upper and lower teeth can be cleaned at the same time. The present invention can effectively change the traditional way of cleaning the upper and lower teeth by setting the tooth groove on the curved plate for fixing the upper and lower teeth, and using the water supply part to realize the simultaneous thorough washing of the upper and lower teeth. The defect of the toothwashing device is that the toothwashing efficiency is low, and the toothwashing is more convenient and fast. Secondly, the inner bottom of the top alveolar is high in the middle and the ends are low, which can facilitate the rapid flow of rinse water and reduce the residue of dirty water.

The invention discloses a dental calculus removing device for a pet dog. The dental calculus removing device comprises a V-shaped tooth socket, wherein tooth grooves are formed in the upper and lowersurfaces of the V-shaped tooth socket; V-shaped cavities are formed in opposite inner walls of the tooth grooves; a plurality of triangular air cushions are embedded into the opposite inner walls of the tooth grooves at equal intervals; the triangular air cushions are in elastic sealing connection with the inner walls of the tooth grooves; one side of each triangular air cushion is parallel to theinner wall of the corresponding tooth groove; the tip end of each triangular air cushion extends into the corresponding V-shaped cavity; a V-shaped liquid storage bag and a V-shaped air storage bag are arranged between the inner bottoms of the upper and lower tooth grooves; a layer of hairbrush is arranged on the outer side wall of each triangular air cushion; the outer wall of each triangular air cushion communicates with a plurality of liquid outlet pipes and liquid suction pipes; check valves are mounted in the liquid outlet pipes and the liquid suction pipes; and the tail ends of the liquid suction pipes communicate with the V-shaped liquid storage bag. The dental calculus removing device for the pet dog is reasonable in structure and can be directly arranged on teeth in a sleeving manner to wrap the whole teeth, so that an all-directional and rapid cleaning process is realized.

An automatic fast spiral tooth-shaped butt joint structure for foundation piles. At the end of the lower end of the foundation pile to be connected on the upper part, there is an externally threaded conical truncated protruding and extending axially, and the upper end of the externally threaded conical truncated is uniformly distributed with threads Conical frustum teeth and frustum tooth sockets at intervals with consistent rotation direction, at the end of the upper end of the pile to be connected to the lower part, there is an internal thread conical groove that matches the external thread conical frustum axially, and the internal thread conical frustum Around the upper end of the groove, there are evenly distributed conical wall alveolar butt joints with the teeth of the frustum of the cone, and the interval between the alveolar of the conical wall and the teeth of the conical wall is staggered; The interior of the platform groove and the tapered alveolar are coated with quick-drying high-strength cement slurry. The automatic fast spiral tooth form butt joint structure of foundation piles is simple in structure, low in cost, saves time and trouble, is stable and reliable, and can realize automatic rapid spiral tooth form butt joint of foundation piles.