11 results about "Orthodontics" patented technology

The invention provides a breather. The breather comprises a breathing tube sleeved with a lower respirator, wherein the lower end of the breathing tube is provided with a plurality of through holes, two supporting frames are fixedly and symmetrically installed at the position, at the lower end of the lower respirator, of the breathing tube, each supporting frame is fixedly provided with an oral cavity expanding frame, the shape of the periphery of each oral cavity expanding frame is matched with the outline of teeth of a person, and an upper respirator is installed at the upper end of the breathing tube. The breather can be placed in the pried-open mandibular joints of a patient with tight dental occlusion and in a severe coma, the mandibular joints can be prevented from being closed automatically, and thus the artificial breather can be inserted into the mouth of the patient, and emergency treatment efficiency is guaranteed.

The invention discloses a dental implant structure, an assembly method thereof and a dental implant system. The dental implant system comprises the dental implant structure, wherein the dental implantstructure comprises an implant, a connecting piece and an abutment, a mounting groove is formed in the implant, the connecting piece comprises a connecting nut and an elastic piece which are arrangedin the mounting groove in sequence, a connecting screw rod in threaded fit with the connecting nut is formed at one end of the abutment, a first limiting part and a second limiting part which are matched with each other are arranged on the opposite sides of the implant and the abutment respectively, and the dental implant structure is assembled by matching two arc-shaped gaskets which are encircled into a ring. According to the invention, the connecting piece is arranged in the mounting groove of the implant, and the connecting piece enables the screwed abutment to have a movable gap along the axial direction through the cooperation of the slidable connecting nut and the elastic piece, so that the first limiting part on the implant is matched with the second limiting part on the abutmentto limit the rotation of the implant relative to the abutment.

The invention belongs to the technical field of personal care small household appliances, and particularly relates to an electric toothbrush easy to clean. The electric toothbrush comprises a brush handle, a brush head and a cleaning device, the brush head is provided with a brush holder and bristles, the cleaning device comprises a driving mechanism and a movable partition plate, the movable partition plate is arranged on the brush holder and provided with through holes, and the movable partition plate is in transmission connection with the driving mechanism. The movable partition plate is driven by the driving mechanism to reciprocate relative to the brush holder. Due to the fact that the through holes for the bristles of the electric toothbrush to penetrate through are formed in the movable partition plate, the moving process of the movable partition plate is not limited by the bristles. Thus, due to the fact that the movable partition plate is arranged on the face, provided with the bristles, of the brush holder, most of accumulated objects such as toothpaste can be reserved on the movable partition plate, the accumulated objects such as toothpaste can be taken away from the brush holder in the moving process of the movable partition plate, and then the accumulated objects such as toothpaste can be easily and efficiently cleaned.

The invention discloses a shell rotary-type clamping needle fixing dental implant structure and a use method, the shell rotary-type clamping needle fixing dental implant structure is used for alveolarbone, and the shell rotary-type clamping needle fixing dental implant structure comprises an implanting rod with an inserting hole formed along the axial direction; a inserting rod to be inserted into the inserting hole; a shell to be connected to the implanting rod in a sleeved mode and in threaded connection with the implanting rod; two clamping needles to be connected to the implanting rod through a second elastic piece, the two clamping needles are oppositely arranged, notches are formed in the opposite ends of the two clamping needles, and the second elastic piece is used for driving theclamping needles to move in the axis direction of the implanting rod; and the shell is used for driving the inserting rod to be inserted into the notches to drive the clamping needles to protrude from the peripheral wall of the shell. The shell is arranged for driving the clamping needles to be inserted into the alveolar bone, so that the dental implant structure is convenient to operate and use;due to the fact that the shell and the clamping needles are arranged, so that damage to the alveolar bone caused by screw-in of threads can be avoided when the dental implant structure is implanted;and the diameter of the arranged shell is larger than that of the implanting rod, thus being more convenient when driving.

The invention provides application of HS90A as a marker for identifying dental pulp stem cells and periodontal ligament stem cells, and a kit and a method for identifying the dental pulp stem cells and the periodontal ligament stem cells, and relates to the technical field of biology. The inventor of the invention finds that the expression of HS90A genes and/or HS90A proteins in the dental pulp stem cells and the periodontal ligament stem cells is different through experiments; the HS90A is remarkably high in expression in dental pulp stem cells and remarkably low in expression in periodontalligament stem cells; and therefore, the HS90A can be used as a special marker of the two stem cells for distinguishing the cells, and has higher sensitivity and specificity.

The invention relates to an orthodontic auxiliary tool, in particular to an oral cavity restoration and correction tutoring device, which is characterized in that an anterior tooth positioning assembly comprises a first anterior tooth positioning piece and a second anterior tooth positioning piece; one ends of the two rear tooth positioning pieces are rotationally connected with the end parts of the first front tooth positioning piece and the second front tooth positioning piece respectively; the stretching mechanism is arranged on the rear tooth positioning piece; the oral cavity opening assembly is arranged between the two stretching assemblies, and drives the stretching assemblies to approach the throat when opening the oral cavity of the patient; and the administration assembly is arranged on the oral cavity opening assembly. Through the cooperation of the stretching assembly and the oral cavity opening assembly, when the device is placed in the oral cavity of a patient, discomfort cannot be generated, only when the oral cavity opening assembly opens the mouth of the patient, the stretching assembly can drive the oral cavity opening assembly to get close to the throat, and the situation that the patient feels uncomfortable when the device is placed in is avoided. In the process of opening the oral cavity, the dosing assembly sprays a medicament into the mouth of the patient.