RU1799265C - Intraosseous dental implant - Google Patents

Abstract

Field of application: the invention relates to medicine, specifically to dentistry, and can be used in orthopedics and otorhinolaryngology. SUMMARY OF THE INVENTION: an intraosseous dental implant comprising a shaft with external and internal threads for a denture support pin, the width of the external turn is 1/3 of the diameter of the shaft made of porous titanium nickelide with through porosity. What is new in the device is that the implant is made all-metal of porous sintered titanium nickelide along with a thread, with a through porosity of 3 to 70%, a maximum pore size of 100 to 1000 microns and a permeability coefficient of 2-5 x 10 12 to 10 x 10 6 m 2.

Description

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The invention relates to medicine, specifically to dentistry, and can be used in orthopedics and otorhinolaryngology.

The purpose of the invention is to increase the reliability of fixation of the implant and provide optimal conditions for its implantation.

Figure 1 shows a General view of the intraosseous dental implant; figure 2 is a view of the implant.nat and plugs, front and top; in Fig.Z - the lower jaw with an installed dental implant (scheme); Fig. 4 is a radiograph of patient B. with two implants implanted in the frontal part of the lower jaw.

The implant contains a hollow rod 1, an external porous surface in the form of a thread 2, an internal cavity with a threaded surface 3, a through transverse groove

4, a plug 5 inserted by screwing into the inside of the rod (Fig. 1-2).

The implant is made by one of the methods of powder metallurgy by vacuum sintering the powder once in a chamber, which is a matrix, with predetermined dimensions and shape, where the metal powder is under pressure.

An intraosseous dental implant is inserted and works as follows: under local anesthesia, a mucosal-periosteal flap is cut out on the alveolar ridge of the jaw and detached in the direction. To the inner plate of the alveolar ridge, at the apex of the alveolar ridge, in a strictly specified place, with a milling cutter with a diameter smaller the diameter of the implant per thread size 2, the bone channel is drilled at a given angle to

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bone, to a depth of a shorter length of the implant by thread size 2. The bone canal is treated with antiseptics and dried, after which the implant is screwed into it. For this purpose, a special screwdriver having a worm gear and inserted into the groove 4 is screwed in with a force not changing the angle of the implant direction. After the implant is completely deepened into the bone, it is screwed in until the plug inserted into the internal cavity 3 is flush with: flush to the surface of the bone. The following manipulations will be the treatment of the wound with antiseptics and obturation of the internal cavity 3 with the plug 5. The plug 5, in the form of a pin with a pin, can be made of any bio-indifferent material and satisfying the requirement of a tight obturation of the internal cavity of the implant. The mucus-periosteal flap is put in place and fixed with lavsan sutures. Prosthetics can be started two months after an X-ray examination and complete implant engraftment in the bone is achieved, for this purpose a notch is made on the mucous membrane on the crest of the alveolar ridge at the site of implantation and the implant plug is removed and replaced by a prosthesis support pin (Fig. H) .., /. / ..

An example of a particular implant. Patient B., 36 years old without somatic pathology with a frontal defect in the dentition of the lower jaw from DT using Pi teeth, underwent the implantation of the indicated device using the method described above. After sedation, under 2-sided mandibular and infiltration anesthesia with 12 ml of 2% novocaine solution. A mucosal-periosteal flap was cut out on the alveolar process with the condition that the bone was exposed in the region from 41 to I teeth, in a place strictly specified by the dentists and dentists and at a given angle in the jaw bone at level 31, J3 drilled a channel with a given diameter and depth.

The surgical wound was washed with antiseptic solutions and dried, after which the implants were inserted, manual screwing was performed first, then a special screwdriver with a worm gear was inserted into the groove of the implant, and screwing was performed with effort until the implant is recessed into the bone to a depth corresponding to the implant length and thickness stitches, the wound was washed with antiseptic solutions, a stub was inserted into the internal cavity of the implant, the mucosal-periosteal flap was put in place and fixed avsanovymi seams. In the first days after implantation, the patient was examined daily, the general condition of the patient (recipient) is satisfactory. Stitches Sn you on the 7th day. An x-ray method was examined 8 weeks every week, after bone tissue restoration was started: prosthetics: The plug was removed through a notch on the slit sheath and replaced with the prosthesis support pins. A fixed prosthesis was made to the patient with support for 3, 3 titanium nykelide implants. F 6 r a mul and and about zbret ot ni Intraosseous dental implant, you. filled in the form of a rod with an external thread and an internal thread under the support pin of the denture prosthesis, with the exception that in order to increase the reliability of fixation of the implant and provide optimal conditions for its engraftment, the width of the threaded turn was It is 1/3 of the diameter of the rod, while the rod is made of titanium nykelide with through porosity.

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