7 results about "Gutta percha - point" patented technology

The application provides a multifunctional root canal treatment measuring table, and relates to the technical field of root canal treatment measurement. The multifunctional root canal treatment measuring table comprises a main body mechanism, a root canal measuring table is fixedly arranged at the front end of the main body mechanism, a gutta-percha point cutting mechanism is fixedly arranged at the middle position of the main body mechanism, a soaking disinfection mechanism is fixedly arranged at the rear end of the main body mechanism, a root canal file cleaning mechanism is clamped at the upper end of one side of the soaking disinfection mechanism, the root canal file cleaning mechanism comprises a connecting seat, an ejection column is fixedly arranged at the middle position of the upper surface of the connecting seat, connecting rods are fixedly arranged on the two sides of the upper surface of the connecting seat, and cleaning tables are connected to the upper ends of the two connecting rods through springs. The root canal measurement, gutta-percha point cutting, soaking disinfection and root canal file cleaning functions are integrated, the problems of instrument scattering, complicated operation and inconvenience in use in the prior art are effectively solved, and the treatment efficiency and operation safety are significantly improved.

The application discloses an expanding root canal filling medical device combination based on a dental root tip biological seal and application. The medical device combination comprises a sealant combination and a titanium material root canal plug tip, the sealant combination is composed of liquid agent, A component powder and B component powder which are mutually isolated before use, the A component powder comprises 75-95% of tricalcium silicate and 5-25% of beta tricalcium phosphate, the B component powder comprises 45-55% of nano zirconium dioxide, 44.7-52% of calcium hydroxide and 0.3-3% of calcium oxide; a root canal section surface of the root canal plug tip is provided with a horizontal screw thread, a screw thread groove of the screw thread is used for filling the prepared sealant, and a crown section surface is provided with a retaining groove section. The medical device combination solves the problems of root canal treatment failure or poor long-term curative effect caused by volume shrinkage after filling of the existing sealant and gutta-percha tip, and can realize high safety, high biocompatibility, high quality and high density root canal filling.

The application relates to the field of dental root canal filling, and particularly discloses a dental composition, a preparation method thereof, a gutta-percha point and a preparation method of the gutta-percha point. The dental composition comprises the following raw materials: gutta-percha, polypropylene and dimethyl silicone oil; the preparation method comprises the following steps: S1, mixing gutta-percha and polypropylene, the mixing temperature is 80-100 DEG C, the rotating speed is 30-60 r / min, and the mixing time is 30-60 min, to obtain a colloid; and S2, adding the remaining raw materials into the colloid to continue mixing, to obtain the dental composition. By adding polypropylene and dimethyl silicone oil into the gutta-percha, part of the gutta-percha is replaced by low-melting-point polypropylene which has better biocompatibility, compared with the common gutta-percha point which usually contains about 20% of gutta-percha, the proportion of the gutta-percha is appropriately reduced, meanwhile, under the action of the dimethyl silicone oil, the flowability and viscosity of the gutta-percha point are improved, so that the gutta-percha point is beneficial to the injection molding process, and the yield, quality and cost can be improved.

This invention provides a gutta-percha point trimmer, including a trimming tube with a perforated upper shell slidably connected to its upper end. A support frame is fixedly connected inside the trimming tube, and a motor is fixedly connected to the middle of the support frame. A docking block is fixedly connected to the output end of the motor. This design solves the problems of existing gutta-percha point trimmers, which require doctors to use both hands to operate the moving blade to trim the gutta-percha points, are small and prone to falling, and have the gutta-percha points get stuck on the blades. This invention has a reasonable structure and good practicality. By placing the trimming tube on the worktable, the gutta-percha point is simply inserted into the round hole on the surface of the perforated upper shell, allowing the rotating cutting propellant to trim the gutta-percha point. When the rotating cutting propellant becomes dull, the fixed base can be pulled out to replace it with a new rotating cutting propellant, which can prevent the rotating cutting propellant from scratching the doctor and also prevent the gutta-percha point from getting stuck on the blade.

The invention discloses a gutta-percha point trimming device, and relates to the technical field of gutta-percha point cutting equipment, and the gutta-percha point trimming device comprises a gutta-percha point cutting device and a gutta-percha point heating device; the gutta-percha point cutting device comprises a cutting shell, a cutting cavity is formed in the cutting shell, a cutting channel is formed in the bottom of the cutting cavity, a cutting rotary disc is rotationally connected to one end of the cutting shell, a plurality of section cutting through holes are formed in the cutting rotary disc, and a positioning sliding frame and a movable sliding frame are slidably connected into the cutting cavity. A section cutting blade is fixed to the positioning sliding frame, a length cutting blade is fixed to the movable sliding frame, and the section cutting blade and the length cutting blade can cut gutta-percha points in the cutting channel. The gutta-percha point heating device is provided with a heating channel and a heating element, the gutta-percha point can stretch into the heating channel, and the heating element can heat the gutta-percha point in the heating channel. According to the gutta-percha point trimming device, the taper, length and tip section size of the gutta-percha point can be precisely trimmed.

The utility model discloses a gutta-percha point trimming cutter, which belongs to the technical field of gutta-percha point trimming, and comprises a base, a row of first round holes and a row of second round holes are symmetrically arranged at the top end of the base, a strip-shaped groove with two open ends is arranged on one side of the base, the strip-shaped groove is communicated with the bottom ends of the first round holes, and the second round holes are communicated with the bottom ends of the second round holes. A plurality of first circular grooves which are different in depth and correspond to the first circular holes one to one are formed in the bottom end of the strip-shaped groove, a cutting assembly is installed at the bottom end of the inner wall of the strip-shaped groove, a groove communicating with the second circular hole is formed in the other side of the base, and a supporting block is installed in the groove; second circular grooves corresponding to the second circular holes in a one-to-one mode are formed in the top ends of the supporting blocks, first cutting knives with different tapers are installed in the second circular grooves, and the gutta-percha point trimming cutter can achieve precise cutting, is convenient and fast to operate, is stable in structure and is high in maintenance and function expansibility.

The application discloses a gutta-percha point trimmer, which comprises a measuring scale, a cutting scale and a marking scale. The cutting scale and the marking scale are parallel and perpendicular to the measuring scale respectively; the starting point of the scale of the measuring scale is at the same level with the back surface of the cutting scale; the cutting scale is in a disc structure, and a plurality of conical holes with different sizes are distributed along the circumference of the disc; the diameter of the conical hole is larger on the front surface of the cutting scale than on the back surface of the cutting scale; a gear matched with the disc structure is arranged at the proximal end of the disc structure, and a blade is arranged below the disc structure; two circular holes with different diameters are arranged on the T-shaped part of the marking scale, the length between the two circular holes is the same as the length between two conical holes on the diagonal line of the disc structure of the cutting scale; and a slidable rectangular blade is arranged above the T-shaped part. The gutta-percha point trimmer can effectively and safely cut the tip of the gutta-percha point and accurately determine the working length of the gutta-percha point.