CN215994321U - Be used for transfer of multiple unit planting base station and accurate delivery device - Google Patents

Abstract

The utility model relates to the field of oral technology application, in particular to a device for transferring a multi-unit implant abutment and accurately taking a mold; comprises a personalized transfer rod; the personalized transfer rod comprises a positioning transfer rod, a central screw rod and a connecting rod; the connecting rod is arranged on the side edge of the positioning transfer rod; the positioning transfer rod comprises a body part, a connecting part, a central screw channel and a central screw channel, wherein the lower part of the body part is a hollow connecting part, and the inner diameter of the connecting part is matched with the outer diameter of a base station connecting part of the composite base station; the device has simple structure and convenient operation, can simulate and select the in-place direction of the composite abutment outside the oral cavity, and is convenient for later doctors to rapidly install the composite abutment in the oral cavity.

Description

Be used for transfer of multiple unit planting base station and accurate delivery device

Technical Field

The utility model relates to the field of oral technology application, in particular to a device for transferring a multi-unit implant abutment and accurately taking a mold.

Background

The oral implant is also called as a dental implant, and is implanted into the upper and lower jawbone of the edentulous part of a human body in a surgical operation mode, and a device for repairing false teeth is arranged at the upper part of the oral implant after the operation wound is healed; the implanted upper prosthesis can be divided into bonding retention and screw retention according to different retention forms, the screw retention repair mode has the advantages of peri-implantitis and the like due to the convenience of later maintenance and the problem of no adhesive residue, and more clinicians choose to adopt a screw retention implant repair scheme; meanwhile, with the continuous progress of the edentulous jaw planting technology, more and more edentulous jaw patients select planting and repairing solutions, and the upper planting part of the edentulous jaw patients is repaired by adopting a screw-fixed planting bridge.

However, to ensure that the screw-retained implant bridge can be passively positioned on the implant, the implant implantation angle is relatively high, and the implant implantation angle is generally required to be relatively parallel; in the actual planting process, the implanted planting bodies cannot be completely parallel, so that the positioning direction of the screw retention planting bridge needs to be corrected through the composite abutment. Because the operation of selecting the composite abutment in the mouth is not intuitive and convenient enough, a doctor usually selects the composite abutment on the poured plaster model and determines the positioning direction of the composite abutment after adopting the implant horizontal model taking, but if the non-anti-rotation angle composite abutment (anti-rotation and non-anti-rotation, wherein the non-anti-rotation composite abutment can adjust the angle of the implant more widely) is selected, the accurate transfer of the simulated positioning position on the model into the mouth cannot be realized.

In addition, the key to the success of implant repair is the acquisition of an accurate impression. When the multi-tooth-position implant is used for repairing and taking a model, the implant position relationship is required to be kept stable and accurate, and the model is often taken after the implant impression transfer rods are rigidly connected through various modes. However, in the conventional method, the rigid connection is performed in a complicated and time-consuming process, and the long operation time in the mouth of the patient is easy to cause discomfort to the patient.

Disclosure of Invention

In view of the above defects in the prior art, the utility model aims to solve the technical problems that a composite abutment (especially a non-rotation-resistant angle composite abutment) is adopted, the position is selected and determined by an indirect method, then the composite abutment is accurately transferred onto an oral implant, and finally the multi-dental-position implant abutment horizontal precise mold taking method and device are completed; the composite abutment can be directly, quickly, conveniently and accurately positioned in the mouth according to the simulated direction and position, and the horizontal accurate mould taking of the multi-unit implant abutment can be completed.

In order to achieve the above object, the present invention provides a method for transferring a multi-unit planting base station and accurately picking a mold, which is characterized by comprising the following steps:

1) after a doctor prepares an implant horizontal impression, an implant substitute is installed, and after the artificial gum is poured, superhard gypsum is mixed to complete pouring of a gypsum model;

2) selecting a proper composite abutment after considering the dentition arrangement, the open pore position and the common in-place channel of the final restoration on the model according to the implantation position and the direction of the implant, namely selecting a non-anti-rotation angle composite abutment if the anti-rotation angle composite abutment cannot meet the restoration requirement, in-place placing the composite abutment on the model according to the correct direction, and fixing the composite abutment on the model implantation substitute through a central screw;

3) installing the digital scanning rod on a composite base platform of the model, and fastening the digital scanning rod on the composite base platform through screws;

4) scanning by using a model scanner to obtain three-dimensional point cloud data of each digital scanning rod and three-dimensional point cloud data of oral tissues around the digital scanning rods;

5) editing and modeling the point cloud data obtained in the step 4 by using matched software, completing the design of the personalized transfer rod, and finally manufacturing the personalized transfer rod through CNC (computerized numerical control) cutting;

6) assembling the processed personalized transfer rod with the composite base station on the model, taking down the personalized transfer rod together with the connected composite base station by unscrewing the central screw, and delivering the personalized transfer rod and the connected composite base station to clinic for making an implant impression;

7) sequentially placing the personalized transfer rods and the composite base station in the mouth according to the placing sequence on the model, adjusting the placing direction of the composite base station to enable the end surface of the connecting rod of the personalized transfer rod connected above the composite base station to be approximately aligned with the end surface of the connecting rod of the adjacent personalized transfer rod, and fixing the central screw to a torsion value recommended by an implant manufacturer; the composite base stations are positioned in the same way in turn;

8) after the composite base station is in place, connecting the end faces of the connecting ends of the two adjacent personalized transfer rods into a whole by using rapid prototyping resin;

9) and (3) selecting a proper tray, injecting an impression material into the tray, putting the tray in place in the mouth, screwing off the central screw rod from the composite base station when the impression material is solidified, and then integrally taking down the personalized transfer rod and the tray to finish mould taking.

Further, the modeling method in 5) includes:

1, matching and fusing acquired three-dimensional point cloud data of a plurality of digital scanning rods with a software scanning rod database to generate a horizontal digital model of the implant base; modeling an individualized transfer rod, wherein an interface part of the individualized transfer rod is matched with a base station connecting part of the composite base station; extending the body part of the personalized transfer rod along the long axis direction of the composite base station, wherein the length of the body part is 7-9mm, and the thickness of the outer wall is 0.5-1 mm;

2, a central screw channel is designed at the position of the body of the personalized transfer rod along the direction of the long axis with the deflection angle of 17 degrees or 30 degrees consistent with the angle of the selected composite abutment, and the size of the central screw channel ensures that the central screw of the composite abutment can pass through;

3 designing a deep concave-shaped retaining part on the shaft wall of the body part of the personalized transfer rod;

4 the distance between the upper part of the shaft wall of the body part of the personalized transfer rod and the upper edge of the connecting part is 2-4mm, a connecting rod with the diameter of 1.5-2mm is designed for avoiding the central screw channel, and the shape of the connecting rod is consistent with the radian of the dental arch.

5, the connecting rods of two adjacent individual transfer rods are in cross-section butt joint at the center.

And 6, modeling after the design of the personalized transfer rod is finished, and then finishing CNC (computerized numerical control) cutting manufacturing.

The device used for the multi-unit planting base station transfer and the accurate mould taking method comprises a personalized transfer rod; the personalized transfer rod comprises a positioning transfer rod, a central screw rod and a connecting rod; the connecting rod is arranged on the side edge of the positioning transfer rod; the positioning transfer rod comprises a body part, a connecting part, a central screw channel and a central screw channel, wherein the lower part of the body part is a hollow connecting part, and the inner diameter of the connecting part is matched with the outer diameter of a base station connecting part of the composite base station; a central screw channel is formed in one side of the interface part and matched with the central screw channel of the composite base station; the central screw channel is matched with the repair screw channel of the composite abutment; the personalized transfer rod is connected and fixed with the composite base station by screwing the central screw; the composite abutment and the implant or the implant are connected and fixed by screwing the central screw.

Furthermore, the side of the body part is provided with a deep groove retaining part.

The beneficial effects of the utility model are:

1. the device has simple structure and convenient operation, can simulate and select the positioning direction of the composite abutment outside the oral cavity, and is convenient for later doctors to quickly install in the oral cavity;

2. according to the method and the device for transferring the multi-unit implant base station and accurately taking the mold, provided by the utility model, the three-dimensional digital acquisition technology, the digital design and the manufacturing technology are combined, and the installation and positioning of the composite base station (especially the non-rotation-resistant angle composite base station) in the mouth and the horizontal mold taking of the multi-unit implant base station can be accurately, quickly and efficiently completed. Meanwhile, the method is also suitable for young doctors and doctors in primary oral hospitals and clinics, and the popularization of the correct selection, positioning and accurate mold taking technology of the multi-unit implant composite abutment is increased.

3. The method solves the problems that in the implantation repair process, due to the fact that the direction of the implant is not ideal, a composite base station (particularly a non-rotation-resistant angle composite base station) needs to be selected to be adjusted to a position channel, the position and the direction of the composite base station simulated outside the mouth are quickly and accurately installed on the implant inside the mouth, and the multi-unit implant base station is horizontally and accurately taken.

Drawings

Fig. 1 is a schematic view of the installation position relationship of the personalized transfer rod of the utility model.

Fig. 2 is an enlarged schematic view of a portion a of fig. 1.

Fig. 3 is an external structure diagram of the personalized transfer bar of the present invention.

Fig. 4 is a schematic structural diagram of the position of the digital scanning rod and the implant replacement.

Fig. 5 is a schematic view showing a positional relationship between adjacent connecting bars and a positioning transfer bar.

Wherein, B is indicated in the human mouth; c is an indication after in vitro impression taking, (step 1, a model in the oral cavity of the patient is taken after a middle horizontal impression, and an implant substitute 1 is installed on the model to indicate the implant); and D is a model appearance schematic diagram of the in-vitro molding die, namely the model appearance schematic diagram shows the positions of the adjacent connecting rods and the positioning transfer rods.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present patent is capable of embodiments in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the present patent and it is therefore intended that the present patent application not be limited to the particular embodiments disclosed below.

The utility model is further described with reference to the following figures 1-5 and examples: a method for transferring and accurately taking a multi-unit planting base platform comprises the following steps:

1) after a doctor prepares an implant horizontal impression (because the doctor implants in the oral cavity of a patient, the implants of the patient are different from person to person and the implantation directions are also different greatly, so that a model simulating the implantation position relationship of the implants in the oral cavity is prepared by the implant horizontal impression process), an implant substitute 1 is installed (the implant is a high-cost metal/other implant which is actually implanted in the oral cavity, and the position relationship of the implant is only needed to be utilized, so that an implant substitute 1 which is consistent with the position relationship of the implant in the actual oral cavity is installed on the model), and the ultra-hard gypsum is mixed after the artificial gum is poured, so that the pouring of the gypsum model is completed;

2) after considering the dentition arrangement, the open pore position and the common placement channel of the final prosthesis according to the implantation position and the direction of the implant on the model (briefly, a technician arranges/selects a better dentition position relation according to the actual conditions in the mouth of a patient), selecting a suitable composite abutment 2, if the anti-rotation angle composite abutment cannot meet the requirements of the repair, selecting a non-rotation-resistant angle composite abutment (if the finished composite abutment cannot meet the requirements, the personalized composite abutment manufactured by adopting a CAD/CAM mode can be considered), placing the composite abutment on the model according to the correct direction, and fixing the composite abutment on the model implantation substituent 1 through a central screw 415;

3) installing the digital scanning rod 3 on the composite base 2 of the model, and fastening the digital scanning rod 3 on the composite base 2 through a screw 31;

4) scanning by using a model scanner to obtain three-dimensional point cloud data of each digital scanning rod 3 and three-dimensional point cloud data of soft and hard tissues of the oral cavity around each digital scanning rod 3;

5) editing and modeling the point cloud data obtained in the step 4 by using matched software, completing the design of the personalized transfer rod 4, and finally manufacturing the personalized transfer rod 4 through CNC (computerized numerical control) cutting;

6) assembling the processed personalized transfer rod 4 with the composite base station 2 on the model, taking down the personalized transfer rod 4 together with the connected composite base station 2 by unscrewing the central screw 415, and delivering the taken down to clinic for making an implant impression;

7) sequentially putting the personalized transfer rod 4 and the composite base station 2 in place in the mouth according to the putting sequence on the model, adjusting the putting direction of the composite base station 2 to ensure that the end surface of the connecting rod 43 of the personalized transfer rod connected above the composite base station is approximately aligned with the end surface of the connecting rod of the adjacent personalized transfer rod, and fixing the central screw 415 to the torsion value recommended by the implant manufacturer; the composite base stations 2 are put in place in the same way;

8) after the composite base station 2 is in place, connecting the end faces of the connecting ends 43 of the two adjacent individualized transfer rods into a whole by using quick forming resin;

9) and (3) selecting a proper tray, injecting an impression material into the tray, putting the tray in place in the mouth, screwing off the central screw rod 42 from the composite base station 2 when the impression material is solidified, and then taking off the personalized transfer rod 4 and the tray integrally to finish mould taking.

The modeling method in the aforementioned 5) includes:

2.1, matching and fusing the acquired three-dimensional point cloud data of the plurality of digital scanning rods 3 with a software scanning rod database to generate a horizontal digital model of the implant base; modeling an individualized transfer rod, wherein the interface part 412 of the individualized transfer rod is matched with the base station connecting part 221 of the composite base station 2; the body 411 of the personalized transfer rod extends along the long axis direction of the composite base station, the length of the body is 7-9mm, and the thickness of the outer wall is 0.5-1 mm; the length and thickness are only recommended thicknesses and can be adjusted according to actual requirements.

2.2, a central screw channel 414 is designed at the position of the body 411 of the personalized transfer rod along the long axis, wherein the deflection angle of the body is 17 degrees or 30 degrees (the angle of the angle base station/the composite base station) and the direction is consistent with the angle of the selected composite base station, and the size of the central screw channel 414 ensures that a central screw 415 of the composite base station 2 can pass through;

2.3 designing a deep concave-shaped retainer on the shaft wall of the body 411 of the personalized transfer rod;

2.4 the distance between the upper edge of the interface part (412) and the body 411 of the personalized transfer rod is 2-4mm (the distance is obtained according to the practical operation experience recommendation), the central screw channel 414 is avoided, the connecting rod 43 with the diameter of 1.5-2mm (the distance range recommended in the practical operation) is designed, and the shape of the connecting rod 43 is consistent with the radian of the dental arch.

2.5 design the connecting rods 43 of two adjacent individualized transfer rods 4 are in cross-sectional butt joint at the center.

2.6, modeling the personalized transfer rod 4, and then delivering to CNC cutting and numerical control cutting manufacturing.

In the actual production process design, the transfer rod is personalized; the personalized transfer rod comprises a positioning transfer rod 41, a central screw rod 42 and a connecting rod 43; the connecting rod 43 is provided at the side of the positioning transfer lever 41; the positioning transfer rod 41 comprises a body 411, a connecting part 412, a central screw channel 413 and a fastening screw channel 414, wherein the lower part of the body 411 is a hollow connecting part 412, and the inner diameter of the connecting part 412 is matched with the outer diameter of the base connecting part 221 of the composite base 22; a central screw channel 414 is formed on one side of the interface part 412, and the central screw channel 414 is matched with the central screw channel 224 of the composite base station; the central screw channel 413 is matched with the repair screw channel 222 of the composite abutment, and the personalized transfer rod 4 is fixedly connected with the composite abutment 22 by screwing the central screw 42; the composite abutment 22 is fixed to the implant or the implant instead of being connected thereto by tightening the central screw 415.

In particular, the sides of the body 411 are provided with deep-groove retainers 44 to increase the mechanical bond of the transfer bar to the impression material.

In practical application, firstly, an implant is implanted in a mouth of a patient, and when the implant is implanted, the direction of the implant is inevitably deviated, which causes that a screw retention prosthesis supported by a plurality of implants cannot obtain a common positioning channel, at the moment, a composite abutment is required to be selected to adjust the positioning direction of the implant, and in some cases, a straight composite abutment cannot obtain the common positioning channel on one hand, and on the other hand, the final dental crown cannot form a regular dental row or the position of an opening hole to influence the appearance, so that an angled composite abutment is required to be used; however, how to select a composite abutment suitable for penetrating the gingiva and suitable for the angle is relatively difficult and tedious to operate, especially when a plurality of implants are required, the doctor can rotate the composite abutment in the oral cavity of the patient to find a suitable correction position due to the influence of factors such as the operation visual field and the like; therefore, the method selects a proper composite abutment and a proper positioning direction through in-vitro molding and then selection on the model by a technician; after the matched scanning rod is installed, a model scanner is used for obtaining three-dimensional point cloud data, and design of the personalized transfer rod is completed through modeling of design software; then, numerical control cutting processing of the personalized transfer rod is completed by adopting numerical control cutting processing; placing the personalized transfer rod on the composite base station of the model in place in sequence, loosening the central screw, taking down the personalized transfer rod together with the composite base station, numbering in sequence (facilitating distinction), and completing the selection and clinical delivery of the composite base station; in clinical use, the in-place devices are sequentially arranged according to the numbers, the directions of the in-place devices are adjusted, the sections of the connecting rods 43 of the two adjacent in-place devices are matched, and then the central screw 415 is screwed to finish the accurate in-place of the composite abutment. And then loosening the central screw rod 42, and applying force to the composite abutment according to the recommendation of the implant manufacturer to complete the complete positioning of the composite abutment. Thereby completing the selection of the whole in-place way outside the oral cavity and realizing the quick installation in the oral cavity; the advantages of external selection and rapid installation in the oral cavity are realized. In addition, when the multi-unit planting base station is transferred, the non-anti-rotation composite base station can be accurately, quickly and efficiently installed in the mouth in place through auxiliary judgment of the cross section of the adjacent connecting rod 43.

The foregoing detailed description of the preferred embodiments of the utility model. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the teachings of this invention without undue experimentation. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the concepts of the present patent are all within the scope of protection defined by the claims.

Claims (2)

1. The utility model provides a be used for base station transfer and accurate delivery device are planted to polyculture which characterized in that: comprises a personalized transfer rod; the personalized transfer rod comprises a positioning transfer rod (41), a central screw rod (42) and a connecting rod (43); the connecting rod (43) is arranged on the side of the positioning transfer rod (41); the positioning transfer rod (41) comprises a body part (411), a connecting part (412), a central screw channel (413) and a central screw channel (414), the lower part of the body part (411) is a hollow connecting part (412), and the inner diameter of the connecting part (412) is matched with the outer diameter of a base connecting part (221) of the composite base (2); a central screw channel (414) is formed in one side of the interface part (412), the central screw channel (414) is matched with a central screw channel (224) of the composite base station, and the central screw channel (413) is matched with a repair screw channel (222) of the composite base station; the personalized transfer rod (4) is connected and fixed with the composite base station (2) by screwing the central screw (42); the composite abutment (2) and the implant or the implant are connected and fixed instead by screwing the central screw (415).

2. The device for multiple unit planting abutment transfer and precision modulus extraction of claim 1, wherein: the side of the body (411) is provided with a deep groove retainer (44).

Images