30 results about "Tooth site" patented technology

According to a present invention embodiment, a dental appliance maintains a patient mouth in an open state, retracts tissue, and evacuates bodily and / or other fluids from a dental site. The dental appliance includes an elongated tube configured with a looped section. The elongated tube is flexible, where the looped section is adjustable and manipulated to enable the dental appliance to accommodate mouths of various dental patients. Further, the looped section is resilient in order to maintain the patient mouth in an open state for dental procedures. In addition, the elongated tube includes perforations to remove bodily or other fluids from the patient mouth. A vacuum or suction device is coupled to an end of the elongated tube, where suction is applied to the tube to draw bodily or other fluids from the patient mouth through the perforations and remove these fluids from a dental site.

The invention discloses an oral cavity cleaning device, which comprises a casing (1). The casing (1) is a box structure with openings at both ends as a whole. One end of the casing (1) is provided with a cover The end cover (2) that buckles fits, and the inside of the casing (1) is equipped with a driving device and an oral cleaning device; the driving device includes a motor (3) and a swing seat driven by the motor (3) ( 7), the power output shaft of the motor (3) is equipped with a crank (4), and the end of the crank (4) is radially installed with a shaft (5) that can be rotatably connected with it. The invention is easy to operate, and can complete the cleaning and nursing operations on the tongue coating and tooth parts at one time, thereby greatly improving the overall nursing efficiency.

A method for site-specific detection and early diagnosis of periodontal disease using periodontal pocket fluid biomarkers is disclosed.

The invention discloses a data fusion method for an oral cone beam CT (CBCT) image and laser scanning tooth grids, wherein the method belongs to the field of oral medical digitalization. Through quickly positioning a tooth part in the CBCT image data, and automatically dividing an upper jaw and a lower jaw by means of a least dividing method in a graph theory, interference of non-tooth part data (particularly teeth at the other side) in CBCT is eliminated, thereby greatly improving precision and stability in next-step initial aligning and accurate aligning. The data fusion method has advantages of simple process, higher efficiency, excellent stability, etc. Furthermore the data fusion method realizes higher user-friendly performance and higher convenience in point selection alignment based on user interaction. Firstly, the invention discloses a single-point mark alignment technique, thereby greatly reducing user interaction degree. Secondly, the data fusion method realizes no requirement for high accuracy in point selection by a user, thereby greatly reducing user interaction difficulty.

The invention provides a tooth preparation undercut detection device. The tooth preparation undercut detection device comprises a horizontal guide rod, a left arm, a right arm, a slider, a positioningblock, a measuring pin and a positioning pin. One end of the left arm is movably connected with the slider through a connector, the other end of the left arm is connected with an end of the right arm, the other end of the right arm is connected with the positioning block, the positioning block is fixed to one end of the horizontal guide rod, the other end of the horizontal guide rod is movably passed through the slider, the lateral side of the slider is provided with a limiting block, the limiting block is provided with a through hole, the measuring pin is passed through the through hole, anda top plate of the slider is provided with an elastic limiting rod and a rigid limiting rod. The tooth preparation undercut detection device has the advantages that taking a mold to duplicate a modelis not required, time is saved, whether a preparation has an undercut can be quickly detected, and the device is suitable for any tooth site and can be extended to any position with operational spacelimited, such as a posterior tooth; ink marking on the measuring pin enables the position of the undercut in a tooth to be detected and marked, and indicating can be achieved during continual tooth preparation.

The invention provides a preparation method for a composite jaw plate of a jaw crusher. The preparation method comprises the following steps: (1) preparing a casting mould; (2) placing a profiling reinforcement body containing ceramic particles at the position, corresponding to a worn area of a jaw plate, of the casting mould; (3) pouring molten high manganese steel or alloy steel into the casting mould, cleaning the solidified and cooled molten steel, and removing a casting head and burrs to obtain a composite jaw plate, wherein the matrix of the jaw plate is made of high manganese steel or alloy steel, and ceramic particles are composited in dental parts of a seriously impacted and worn area of the jaw plate; (4) performing heat treatment on the composite jaw plate. In order to overcome the defects of low wear resistance and non-uniform wear in the conventional jaw plate made of a single material, the composite jaw plate is prepared; the ceramic particles are composited in the dental parts of the seriously impacted and worn area of the jaw plate, and the substrate of the composite jaw plate is made of excellent-toughness high manganese steel or alloy steel, and subjected to the heat treatment, so that the coordination and unity of high toughness and wear resistance of the jaw plate can be realized, and the uniform wear of the jaw plate can be guaranteed; the wear resistance of the composite jaw plate is 2-4 times of that of a single substrate.

A dental medicament applicator is disclosed. In one embodiment, a retention device is sized for insertion at a dental site, such as an interproximal site. The retention device includes a body and at least one matrix within the body containing a topical substance, such as a fluoride-containing chemical agent, silver diamine fluoride, or a peptide-based chemical agent, for example. One or two wings may be selectively separably coupled to respective ends of the body. The body, in response to being physically affixed to the dental site, delivers the topical substance at a controlled rate to the dental site.

The invention provides a lifting structure. The lifting structure comprises a column piece and a connecting device connected to the column piece in sliding and matched manners. The connecting device comprises a body and a locking assembly arranged on the body. The locking assembly comprises a pin frame, a triggering piece, a transmission connecting piece, a buckling piece and a rack arranged on the column piece. The pin frame is arranged on the body. The triggering piece is connected with the pin frame in a matched manner. The transmission connecting piece is connected to the buckling piece. One end of the buckling piece is provided with a buckling portion. After the triggering piece is stressed, the triggering piece can move and push the transmission connecting piece to move, so that the buckling piece is driven to move, and then the buckling portion of the buckling piece is inserted into the space between two adjacent tooth sites of the rack.