245 results about "Oral implant" patented technology

A method for producing an artifact-corrected image of a negative jaw impression in a recipient jaw comprising, forming a negative impression of said recipient jaw, producing a first digital image of said negative jaw impression, producing a second digital image, including said artifacts of said negative jaw impression in said recipient jaw and using said first digital image to produce an artifact-corrected computer representation of said negative impression in said recipient jaw.

An oral implant for mounting in a patient's maxilla or mandible is provided that includes an abutment and a fixture. The implants may be arranged in a system including two or more adjacent implants disposed in predetermined locations and bearing a predetermined locational relationship to each other.

The invention discloses a method for making oral implant positioning guiding template based on CBCT data. The method comprises the steps: 1) scanning patient jaw bones through CBCT to mainly obtain jaw bone three-dimensional anatomic structure information of a implant region; 2) analyzing and processing CBCT data; 3) using the processed CBCT data to reconstruct a three-dimensional jaw bone model; 4) processing the reconstructed three-dimensional jaw bone model; 5) designing an oral implant positioning guiding template based on the three-dimensional jaw bone model; and 6) carrying out rapid prototype processing; Amount of influence data is effectively reduced through carrying out resampling, anisotropic diffusion filtering to original image data obtained through CBCT scanning, carrying out volume rendering through a ray-casting method, and noise of the data is further removed, thereby accurate reconstruction of the three-dimensional jaw bone model is guaranteed. Furthermore, accuracy of manufacturing the oral implant positioning guiding template is substantially improved through removing model fragments caused by image artifact and non-implant region models in the process of three dimensional jaw bone model reconstruction.

The invention relates to a hollow short implant of a dental implant, which comprises an one-stage structure and a two-stage structure, wherein the one-stage implant part is connected with an abutment part into a whole; the two-stage structure comprises an implant, a bridge adapter ring and a central bolt; peripheral cylinder spirochaeta of the implant part is divided into three stages, saw-tooth double thread in the main part of the implant can bear heavier load; the hollow structural design of the implant part keeps live bone column with a base and blood supply so as to enhance the supporting strength of the bone and the implant; a self-tapping socket can make bone tissue of the internal and external of the implant grow through and heal; a platform transfer design allows the epithelial cuff of the gum around the implant more reliable to avoid bone resorption caused by micro moving and micro leakage. The short hollow implant realizes combination of the internal and external bone, increases the combination area and supporting strength for a short or a long term, can be implanted rapidly with high strength, better retention in the early stage, high success rate in a long term, and solves the problem that the upper and lower jaws abrase the dental area in the conventional oral implant technology.

The present invention provides a digital implant and oral implant locator design method and system, the method includes the following steps: taking a CT film of the patient's oral cavity, using the CT image to construct a three-dimensional model, establishing an all-round implant surgery simulation environment, and according to the implant The implant information database, select the applicable brand and model of the implant, manually design the implant position, and use the measurement tool to evaluate the implant position, import the scan data of the plaster model, and place the plaster model according to the selected reference point. Align with the 3D model, evaluate the position of the implant according to the standard jaw occlusal relationship, generate revision opinions, extract the basic information of the implant, and process the oral implant positioner. The present invention performs simulated surgery visually and scientifically before the operation, and designs and manufactures an oral implant positioner for dental implant surgery according to the results of the simulated operation, which makes the design of the oral implant positioner scientific and digital, and improves the operation efficiency. success rate.

The invention provides an accurate positioning and intelligent navigation method for an oral implanting robot. The method comprises the following steps: (1) planning a digital tooth implanting scheme;(2) designing a personalized fixing structure of a positioning marker; (3) designing a standard positioning bracket of the positioning marker; (4) generating the positioning marker; (5) acquiring position coordinates of an implant in a three-dimensional implanting scheme; (6) constructing an oral collision model; (7) constructing and correcting an actual scene coordinate system; (8) planning a motion path of the robot and performing offline programming; and (9) performing implanting operation of the robot. According to the method, accurate calculation of target position coordinates of an endeffector of the robot in a global coordinate system in the three-dimensional implanting scheme is realized before an operation, the precision of an optical positioning and navigation system is corrected by utilizing contact position feedback of the robot, and the collision model of the end effector of the implanting operation and dynamic planning of the motion of the robot are constructed.

The invention discloses a method and system for scanning an oral implant. The method includes the steps: fixing a scanning rod corresponding to the oral implant in type on an implant; photographing an oral cavity through an intraoral scanner, and acquiring three-dimensional data in the oral cavity; uploading the three-dimensional data to the system by the intraoral scanner through a wireless network; matching an implant database with the scanning rod by the system, designing appearance of an abutment, shape of a dental crown and a porous model, and transmitting the data to processing equipment; automatically processing corresponding abutment, dental crown and model by the processing equipment according to the data containing the appearance of the abutment, the shape of the dental crown and the porous model. In such a way, digitization of an impression model of the implant is realized, designing accuracy of the abutment and the dental crown is improved, seamless connection of scanning, designing and processing is realized, and production efficiency is improved.

The invention provides an artificial dental abutment, an artificial dental multi-part implanting system and an implanting method. A crown connection section and an implant connection section are respectively arranged at two ends of the artificial dent abutment, wherein the included angle of the axis of the crown connection section and the axis of the implant connection section is 10-30 degrees. The artificial dental abutment can adapt to various oral implanting conditions and angles. An artificially implanted tooth has a harmonious and beautiful repairing effect with surrounding tissues and remained dentition by adopting the abutment. The invention discloses an artificial dental multi-part implanting system comprising the artificial dental abutment, wherein the implant is a multi-part and nonsubmerged technology combined implant, is high in stability and strength, and can adapt to various oral implanting conditions and angles, can be used for effectively reducing the local stress, shortening the healing time and reducing the hurt of patients.

The invention relates to a dental implant abutment, in particular relates to an abutment internally connected with an implant, and belongs to the fields of oral implant and repair. The connecting abutment consists of a crown connecting section, a middle trans-gingival section and an implant insertion section sequentially from top to bottom. The upper crown connecting section of the connecting abutment is a downward enlarged cone of which the taper is 6 degrees. A vertical cutting groove is formed in each of two lateral surfaces of the upper crown connecting section of the abutment, and the two cutting grooves are symmetrically distributed on the two lateral surfaces. The abutment can be used for positioning a crown, and plays a role in resisting rotation. A conical transition section is arranged between the abutment and a connector, and a silver-carrying TiO2 antibacterial coating is coated on the surface. After the abutment is inserted into the inner cavity of the implant, seal fit of conical surfaces, anti-rotating directional fit of eight-angular prism surfaces and pilot fit of cylindrical surfaces can be realized. The invention aims to provide the abutment internally connected with the implant, and the abutment is matched with the implant precisely and stably and has excellent anti-rotating performance.

The invention provides a novel connecting structure of an oral implant-base. A neck part of an implant is provided with an upper columnar hole, a middle taper hole, a positioning hole, and a lower thread hole from top to bottom; a sealing ring with the thickness of 0.1-0.5 mm is arranged between the upper columnar hole and the base. The sealing ring is made of medical high polymer material (polytetrafluoroethylene, silicon rubber, natural rubber, and the like); the neck part of the implant is connected with the base to remove a microgap between the base and the implant and stop the stress transmitting to the neck part of the implant directly; therefore, the structure has the function of adjustable stress transmission and distribution, the intensity of directly transmitting the implant stress to a cortical bone can be reduced, the absorption of the cortical bone can be removed or decreased; the structure is beneficial to reconstructing the physiology of bone organizations around the implant; meanwhile, with the adoption of the structure, the negative effects of the microgap between the implant and the base, and the metal grinding are avoided; the problems of atrophic cortical bone and bred microorganisms are effectively avoided.

The invention discloses a positioning device of an oral implanting robot vision navigation system. The positioning device comprises a tray, a marking plate, a connecting rod, an opening retainer, an endoscope support and retaining screws. A tray handle of the tray is fixed through one retaining screw after being matched with a tray inserting portion of the connecting rod in position through a connecting rod inserting hole. A retaining screw hole B in the marking plate is fixed through one retaining screw after being matched with a retaining screw hole C of a connecting portion A of the connecting rod in position. The opening retainer is meshed with the interior of an opening retainer clamping groove in the tray through a toothed opening in the lower portion of the opening retainer. The endoscope support is fixed through one retaining screw after being matched with a retaining screw hole D in the endoscope support in position through an endoscope support inserting hole. According to the scheme, the operation steps are simplified, after the appropriate tray is selected according to clinic requirements, the tray can be stably fixed to a dentition by the adoption of a silicone rubber impression film preparation method, the tedious steps needed by manufacturing a device loaded on the dentition through a membrane pressing method are omitted, and preoperative preparation time and the patient treatment frequency are reduced.

The invention provides a digital oral aesthetic repair method, and particularly relates to a method for designing dental crown veneers for patients. The digital oral aesthetic repair method includes following steps: acquiring face smile digital images and an intraoral tooth crown three-dimensional digital model of a patient; utilizing the face smile digital images to acquire a two-dimensional digital aesthetic design list; mutually overlapping the two-dimensional digital aesthetic design list and the intraoral tooth crown three-dimensional digital model through three-dimensional point cloud digital splicing technology; adding a standard three-dimensional tooth crown veneer digital model into a corresponding position in the intraoral tooth crown three-dimensional digital model; performing deformation adjusting on the standard three-dimensional tooth crown veneer digital model according to the two-dimensional digital aesthetic design list to acquire a three-dimensional digital model of a tooth crown veneer designed for the patient. The three-dimensional digital model is mainly applied in oral implanting, orthodontics and aesthetic repair, can simulate repair effect of the patients before operation and guide work of doctors and technicians during operation and is a quite effective tool for communication between doctors and patients, between doctors and between doctors and technicians.

The invention relates to a defected-tooth implanting or restoring technology, in particular to a bushing-type oral implanting device which is characterized in that at least two grooves with openings on the upper ends are distributed on a cylindrical surface through which an implanting body is connected with a base station; the upper end of the base station is provided with lug bosses which are matched with the grooves; the combination length of the implanting body and a tubular connecting handle of the base station is nearly 1 / 2 or more of the length of the implanting body so that the implanting body can be embedded in shaped holes on the alveolar bone to shorten the operation time; the implanting body has good bone extruding effect, thus the early-stage stability and the later-stage osseointegration stability after the operation are improved, and the use effect after the healing is enhanced; the contact surface of the thread-type implanting body and the alveolar bone is enlarged, thusthe implanting body and the alveolar bone can be more firmly combined, and the implanting quality of the implanting body is improved; the base station and the implanting body are more tightly connected and are more firmly combined, thus the operation is more convenient; the bushing-type oral implanting device can be operated conveniently and can be well combined with the alveolar bone; the implanting body has good stability and can bear larger lateral force with little or no inclination; the base station and the implanting body can be adjusted in angle and can be connected in high precision;and the bushing-type oral implanting device can inhibit the bone resorption.

The invention discloses a diapir apparatus of maxillary sinus floor in oral implant clinical treatment, which is used for lifting maxillary sinus floor when bone mass in maxilla molar region is insufficient and can effectively increase the vertical bone mass of an alveolar bone. The diapir apparatus of maxillary sinus floor comprises a basal disc and diapir components which can move along a base plane direction perpendicular to the basal disc; a clamp device and a retaining structure used for preventing the diapir components from backtracking are positioned on the basal disc. A plurality of diapirs are carried out for the alveolar bone of the maxillary sinus floor by adopting the diaper components so as to generate the vertical bone mass of the alveolar bone with enough thickness; during the diapir, each diapir distance of the diaper components is accurately controlled so as to effectively prevent mucous membrane of the maxillary sinus floor from being torn due to one-time excessive lifting; furthermore, after each diapir, authigenic bone grows in the clearance between the basal disc and the maxillary sinus floor. The diapir apparatus of maxillary sinus floor of the invention is especially applicable to the sufferers who are old and weak and can not bear wound due to a larger operation and to the cases that teeth are implanted in maxillary posterior-teeth loss area when the bone height of maxillary sinus floor is less than 5mm.

The invention relates to the field of design and making of temporary dentures before operation with utilization of implant body position information in implant body design software in an oral implanting technology, in particular to an edentulous-jaw implanting method for designing and making the temporary dentures before operation. The method comprises steps as follows: 1), collecting basic information; 2), making a radiation guide plate and occlusal records; 3), designing the position of an implant body and storing the position information; 4), designing and making an implanting guide plate; 5), designing and making the temporary dentures; 6), wearing the temporary dentures immediately after implantation. The method has the beneficial effects as follows: 1, with the adoption of system design and digital processing, operative risks of doctors and working intensity of technicians during postoperative repair are effectively reduced, and the working efficiency is improved; 2, a perfect process is established at the beginning of design, thus, an integrated temporary denture bridge can be designed and made or processed, the strength of the temporary dentures is guaranteed, and the temporary dentures are prevented from being broken in a use process by a patient.

The present invention is a tool to measure depth and width of bone cavities prior to and during oral implant placement. The tool includes a passive-depth gauge arm and an active spring caliper arm. The tool can be used to define the extraction socket for oral implant placement and allows measurement verifications after each step of the bone bed preparation prior to or during the actual implant placement in the extraction socket. There are multiple modifications of the primary design into separate embodiments to accommodate usage in different parts of the jaw and different points during the implant procedure.

The invention relates to an oral implant abutment. The oral implant abutment adopts titanium metal and zirconium oxide (ZrO2) as main materials and is characterized by consisting of an abutment (1) made from the ZrO2 and an abutment matrix (2) made from the titanium metal, wherein the abutment (1) made from the ZrO2 comprises a ZrO2 abutment upper part (11) and a ZrO2 shoulder platform (12) and is meshed with the titanium metal abutment matrix (2) through screw threads or adhered to the titanium metal abutment matrix (2) through a medical adhesive. A manufacturing method of the oral implant abutment comprises the following steps of: 1, manufacturing the ZrO2 abutment; and 2, adhering the ZrO2 abutment to the titanium metal abutment matrix through the medical adhesive or thread engagement according to the correct position. The oral implant abutment and the manufacturing method thereof have the characteristic of reducing adhesion of bacteria and dental plaques to the maximum extent.

The invention discloses a measuring system for oral implant repair space analysis. The system comprises a first measuring unit for measuring degree of opening and a plurality of missing teeth gaps, asecond measuring unit for measuring a single missing tooth gap and bite distance, and a third measuring unit for measuring depth of gingiva. The first measuring unit, the second measuring unit and thethird measuring unit all comprise connecting rods and measuring heads arranged at upper ends of the connecting rods. The measuring units of the measuring system have simple structures, are easy to use, have accurate measured data, can accurately and rapidly measure specific spatial characteristics of a to-be-repaired position, and provides basis for design of key parameters of implant size, implant location or shape and structure of upper dummy and the like, and solves problems that current oral and model space analysis depends on clinical experience, is lack of accurate and efficient measurement methods.

An oral implant system and method. The system comprises a positioning tool, a transfer band, a transfer screw and a transfer drill to provide for accurate placement of a dental implant parallel to other implants and or existing teeth and at predetermined depths. A model is made of the patient's maxilla and mandible. The model is marked for implant position, depth and size. Holes are drilled in the model for implant analogs using the positioning tool. The analogs are installed into the model using the positioning tool and a surveyor. Transfer bands are coupled to the analogs and a surgical stent portion is fabricated. The surgical stent is fitted to the patient's occlusion, secured, and then utilized to accurately drill apertures into the patient's maxilla or mandible. The implants are installed into the apertures and the surgical stent is removed. A final restoration is secured to the implants.

The invention relates to an oral implant device and an implant length computation method in the field of oral implantation restoration technique. The oral implant device comprises an implant, a base and a fastening bolt; the implant is formed by a columnar head, a conical middle part and a spherical tail end, wherein the head, the middle part and the tail end are smoothly connected in bullet shape; a columnar step cavity is arranged at the head of the implant; a rectangular key is arranged at the upper part of the cavity and a screw hole connected with the fastening bolt is arranged at the lower part of the cavity; and a rectangular key slot matched with the upper part of the cavity is arranged at the lower part of the base. With bionic characteristic in shape, , the implant of the invention can be better combined with the alveolar bone to realize the biomechanical effect similar to the natural tooth; in addition, the implant can be combined with the base in conical surface manner with good sealing performance and has implant base platform conversion structure; and moreover, the implant has the advantages of simple structure and precise and stable cooperation between the implant and the base and can reduce the bone absorption after the implantation.

The invention is applicable to the technical field of dental implant, and provides a manufacture method and a drilling device for an oral implant locator. The manufacture method comprises iconically and scientifically carrying out simulation surgery before surgery, and designing and manufacturing the oral implant locator which meets self situation of a patient and is used for dental implant surgery according to the result of the simulation surgery, thereby realizing scientific design and digital manufacture of the oral implant locator and improving the success rate of the surgery. In addition, different numbers and different diameters of drilling devices are manufactured in the invention according to the actual situations of different patients; and during surgery process, doctors use the oral implant locator according to the previous design, appropriate drilling devices are placed by using different drill bits, the displacement sequence of the drilling devices is carried out according to the digital design, so that doctors can use the drill bit according to the previous design at each time during the surgery process, thereby guaranteeing more precise and scientific surgery.

The invention provides a false tooth manufacturing method. The false tooth manufacturing method comprises the following steps: taking a CT scanning image; importing data about the situation of the internal part of an entire oral cavity into mimics software; determining edges of body bone tissues and gingiva tissues through a thresholds tool, determining accuracy and integrity of an entire 3D model through a mask tool; checking the validity of the model through a validity tool, and judging whether the model is suitable for 3D printing or not; selecting an STL format as an output file format through the mimics software; performing personalized design through false tooth design software 3Shape Dental System or performing grinding and manufacturing by using a finished product base station; performing false tooth manufacturing on the manufactured base station. Since the false tooth manufacturing method provided by the invention applies the CT image and the 3D printing technique to an oral implanting system, the time can be greatly saved, the process flow is simple and the cost can be greatly reduced.

The invention discloses a preparation method for a micro-arc oxidation-dopamine coupling carried traditional Chinese medicine coating of a pure titanium oral implant and relates to a preparation method for a pure titanium oral implant. The preparation method disclosed by the invention aims to solve the technical problem of implantation failure as an existing titanium oral implant is slowly healed in the early implanting period and bacteria invade after implantation to lead to early infection after an implant surgery. The preparation method provided by the invention comprises the steps of: I, pre-treatment of the surface of a pure titanium test sample; II, preparation of a micro-arc oxidation electrolyte; III, ultrasonic micro-arc oxidation treatment; and IV, post-treatment. After micro-arc oxidation on the surface of a pure titanium implanting material, the material is modified by taking dopamine as a coupling agent carrying traditional Chinese medicines, so that growth and development of skeleton are promoted, material metabolism of human cells is enhanced, aging of muscles and skeleton is prevented, and the broad-spectrum antibacterial action is improved, and therefore, a novel bone implant which is better in biocompatibility and faster to heal is obtained.

The invention discloses a technology for preparing a TiN / ZrTiSiN composite transition blocking layer deposited between titanium and porcelain widely applied in biological human substitute materials, and belongs to the technical field of metallic baked porcelain repair in medical oral implant and repair. A radio frequency magnetron sputtering process is adopted in the technology, and the technology comprises the steps of plating pretreatment, bias backwashing, deposition of a TiN / ZrTiSiN composite transition coating and the like. The sintering temperature of the titanium and the porcelain after the deposited TiN / ZrTiSiN composite transition blocking layer is processed can reach 850 DEG C, and the bonding strength can reach 60MPa. The preparation technology is easy to operate and convenient to popularize. The blocking layer material is prevented from forming a thick unsound oxide film by blocking diffusion reaction between oxygen and titanium at a sintering temperature, and the bonding strength between the titanium and the porcelain is remarkably improved.

The invention relates to the field of dental repair technology, in particular to an oral implant with a conical surface and a rectangular key structure. The oral implant can be implanted in an alveolar bone in a surgery. The oral implant comprises an implant, and a base and a fastening bolt which are matched with the implant. The oral implant is characterized in that the implant consists of a cylindrical upper section part and a conical lower section part, wherein a conical hole is formed at the upper end of the interior of the implant, a cylindrical hole is formed at the middle section of the interior of the implant, a fastening screw hole is formed at the lower end of the interior of the implant, a cylindrical surface and the conical surface which are matched with the cylindrical hole and the conical hole are formed on the lower part of the base, and a key slot and a rectangular key which are matched with each other are formed on the cylindrical hole and the cylindrical surface respectively. The oral implant has the advantages of simple operation, short operation time, good initial stability after operation, good sealing property, high reliability, good base rotation resistance and platform conversion structure, bone absorption inhibition or removal and the like.

The invention provides an oral implant abutment and a manufacture method thereof, aiming at solving the problem that the gingival sulcus part of the existing oral implant abutment is easily adhered with bacterial plaque. The oral implant abutment provided by the invention comprises a gum-penetrating part and a gingival sulcus part, wherein the surface roughness of the gingival sulcus part is smaller than the surface roughness of the gum-penetrating part, and the gingival sulcus part is connected with the gum-penetrating part. In the technical scheme, the gingival sulcus part with smaller surface roughness is adhered with less bacterial plaque, so that imflammation generation probability surrounding the implant can be reduced; in addition, the adhesion of soft tissue can be reduced, the natural gingival sulcus can be formed, better aesthetics effect is achieved, and functional requirements on the gingival sulcus part are better met.

The present invention is a tool to measure depth and width of bone cavities prior to and during oral implant placement. The tool includes a passive-depth gauge arm and an active spring caliper arm. The tool can be used to define the extraction socket for oral implant placement and allows measurement verifications after each step of the bone bed preparation prior to or during the actual implant placement in the extraction socket. There are multiple modifications of the primary design into separate embodiments to accommodate usage in different parts of the jaw and different points during the implant procedure.

The invention discloses a bone tissue repair material and a preparation method and application thereof. The preparation method comprises the steps that in a liquid phase system with the pH value of 10-12, soluble calcium salt and soluble phosphate or phosphoric acid with the molar ratio of Ca to P being 5: 3 are subjected to an in-situ co-precipitation reaction on a natural polymer A, and hydroxyapatite natural polymer A nano-composite particles are formed after precipitate is dried and ground; and hydroxyapatite natural polymer A nano-composite particles are mixed uniformly with a natural polymer B solution, a mixture is put into a mold, vacuum freeze drying is carried out, soaking is carried out with absolute ethyl alcohol, and drying is carried out to obtain the bone tissue repair material. The bone tissue repair material is loose and porous, hydroxyapatite is not prone to leaking from the bone tissue repair material, and the bone tissue repair material is good in water absorption,soft after absorbing water and good in elasticity and can be used for common bone defect repair in the oral implant department, the oral repair department, the orthopedics department and other surgerydepartments. The preparation method is simple and convenient to operate, easy to automate, clean in reagent and low in cost.