KR101626347B1 - method for manufacturing guided bone regeneration block - Google Patents

method for manufacturing guided bone regeneration block Download PDF

Info

Publication number
KR101626347B1
KR101626347B1 KR1020150079801A KR20150079801A KR101626347B1 KR 101626347 B1 KR101626347 B1 KR 101626347B1 KR 1020150079801 A KR1020150079801 A KR 1020150079801A KR 20150079801 A KR20150079801 A KR 20150079801A KR 101626347 B1 KR101626347 B1 KR 101626347B1
Authority
KR
South Korea
Prior art keywords
bone
block
space
implantation
alveolar bone
Prior art date
Application number
KR1020150079801A
Other languages
Korean (ko)
Inventor
김진철
김진백
Original Assignee
주식회사 디오
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 디오 filed Critical 주식회사 디오
Priority to KR1020150079801A priority Critical patent/KR101626347B1/en
Application granted granted Critical
Publication of KR101626347B1 publication Critical patent/KR101626347B1/en

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/04—Measuring instruments specially adapted for dentistry
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0089—Implanting tools or instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0089—Implanting tools or instruments
    • A61C8/0092—Implanting tools or instruments for sinus lifting

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Otolaryngology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Dental Prosthetics (AREA)

Abstract

A first step of acquiring a three-dimensional integrated image by matching CT images and orthoscopic images obtained for the interior of the subject's mouth so that the space between the upper sinus membrane and the alveolar bone can be precisely filled during bone grafting; The virtual phantom sinus membrane having a predetermined thickness is displayed along the inner surface of the alveolar bone displayed in the three-dimensional integrated image, and the height of the alveolar bone of the virtual sinusoidal membrane is calculated according to the alveolar bone thickness of the portion corresponding to the implant placement position, A second step of setting a position of the implantation opening; A third step in which the displayed virtual phantom sinus membrane is virtualized in accordance with the elevation of the elevation and the position of the implantation opening, and between the virtual phantom sinus membrane and the alveolar bone inner surface is set as an implantable space; And a fourth step in which a bone induction regeneration block corresponding to the set implantation space is manufactured.

Description

[0001] The present invention relates to a method for manufacturing a guided bone regeneration block,

More particularly, the present invention relates to a method of manufacturing a bone-guided reconstruction block in which a space between a maxillary sinus membrane and a alveolar bone, which is elevated during bone grafting, is precisely filled.

Generally, an implant refers to a substitute for replacing a human tissue when the original human tissue is lost, but refers to implanting an artificial tooth in the dentistry. To replace the missing tooth root, a fixture made of titanium or the like which has no rejection to the human body is planted in the alveolar bone that has been taken out of the tooth, and then the tooth is restored by fixing the artificial tooth.

In the case of general prostheses or dentures, the surrounding teeth and bones are damaged over time, but the implants can prevent damage to the surrounding dental tissues and can be used stably because there is no secondary cause of tooth decay. In addition, since the implant has the same structure as the natural teeth, there is no pain or foreign body sensation of the gums, and it is advantageous that the implant can be used semi-permanently.

On the other hand, when the thickness of the alveolar bone is thin, since the residual bone supporting the fixture placed is insufficient, the implant is performed after the remaining bone is reinforced through the bone graft, and when the bone is grafted to the alveolar bone, An additional procedure is required.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exemplary view showing a conventional sinusoidal membrane elevation.

As shown in FIG. 1, the maxillary alveolar bone 1 has a maxillary sinus 2 for controlling the humidity in the nasal cavity in association with a respiratory apparatus and controlling resonance at the time of vocalization, and between the maxillary sinus 1 and the maxillary alveolar bone 2 , There is a sinus membrane (3). In this case, when the sinus membrane 3 is damaged, the inside of the maxillary sinus 2 may be exposed to pathogens and a secondary infection may occur in the maxillary sinus 2 and the respiratory system.

When the remaining bone is insufficient in the maxillary alveolar bone 1, an opening communicating with the maxillary sinus 2 is formed on one side of the alveolar bone 1 using a drill having a rounded end so that the maxillary sinus membrane 3 is not torn. And the graft material is used to lift the maxillary sinus membrane 3 attached to the alveolar bone 1 and then the implantation material is injected into the space between the maxillary sinus membrane 3 and the alveolar bone 1, Respectively.

At this time, when the reinforcement of the remaining bone for placement of the fixture is made 4 mm or less, the mouth of the maxillary alveolar bone 1 is opened to lift the maxillary sinus membrane 3, implant the implantable aggregate, , The side surface of the maxilla alveolar bone 1 is opened to lift the maxillary sinus membrane and implant the implantable aggregate.

Then, water is injected into the space between the sinus membrane 3 and the alveolar bone 1, the volume of the implantation space is measured based on the amount of injected water, the implantation bone mass is calculated through the measured volume, And is injected through the rear opening.

However, in the measurement of the implantation space, since it is difficult to discharge the bone graft completely from the space between the injected maxillary sinus membrane 3 and alveolar bone 1, it is difficult to accurately calculate the bone grafting amount, There is a problem that the time for the bone to be fusion-bonded to the alveolar bone 1 is delayed.

In addition, when the amount of graft material required is not accurately calculated, the fixture placement procedure is delayed and the implantation of the graft material is delayed. In case of increasing the exposure time of the maxillary sinus membrane (3) Thereby increasing the risk of infection.

Further, in order to stably support the inserted fixture, in addition to the time required for the graft aggregates provided with powder or the like to be osseointegrated to the alveolar bone 1, it takes time to bond the grafts together to form a hard tissue, There is a problem that a lot of time is required until the culler is placed.

In addition, the powdered graft aggregate may lose its volume or change its graft shape due to the tension of the sinus membrane (3) wrapping the graft material during bone regeneration process, which may result in failure to provide sufficient bearing capacity during fixture placement And severe re-operation was required.

Korean Registration Practice No. 20-0442905

The object of the present invention is to provide a method of manufacturing a bone-guided reconstruction block in which a space between a maxillary sinus membrane and a alveolar bone is piled up precisely during bone grafting.

According to an aspect of the present invention, there is provided a method for acquiring a three-dimensional integrated image, the method comprising: a first step of acquiring a three-dimensional integrated image by matching an acquired CT scan image and an oral scan image with respect to an oral cavity of a subject; The virtual phantom sinus membrane having a predetermined thickness is displayed along the inner surface of the alveolar bone displayed in the three-dimensional integrated image, and the height of the alveolar bone of the virtual sinusoidal membrane is calculated according to the alveolar bone thickness of the portion corresponding to the implant placement position, A second step of setting a position of the implantation opening; A third step in which the displayed virtual phantom sinus membrane is virtualized in accordance with the elevation of the elevation and the position of the implantation opening, and between the virtual phantom sinus membrane and the alveolar bone inner surface is set as an implantable space; And a fourth step in which a bone induction regeneration block corresponding to the set implantation space is manufactured.

The fourth step includes the steps of obtaining three-dimensional vector data of the graft space as design information, cutting the graft aggregate with the volume of the graft aggregate larger than the graft space according to the obtained design information, It is preferable that the bone induction regeneration block is formed which is adapted to the implantation space.

In the fourth step, the three-dimensional vector data of the graft space is obtained as design information, and the forming paste for mixing the powder graft aggregate and the thermosetting liquid phase according to the obtained design information is subjected to three- Thereby producing the bone-induced regeneration block to be formed in the implantation space.

In the fourth step, the three-dimensional vector data of the implantation space is partitioned according to a predetermined unit volume, and each partitioned part is filled and removed according to the filling rate to obtain a block-division-divided image as a unit block, And a step of forming grid-shaped cutting guide grooves corresponding to the unit volume along the surface of the bone-guiding regenerating block, wherein the bone-guiding regenerating block is manufactured by obtaining design information of the block-divided image.

In the fourth step, the three-dimensional vector data of the implantation space is partitioned according to a preset unit volume, and each partitioned part is filled and removed according to the filling rate to obtain a unit block image, And a plurality of unit block bones formed by combining aggregates corresponding to the unit volume are arranged and combined so as to match the block-divided images, thereby manufacturing the bony induction reproducing block.

Through the above-mentioned solution, the method of manufacturing a bone-guided reconstruction block according to the present invention provides the following effects.

First, since the imaginary sinus membrane displayed in the three-dimensional integrated image is imagined and elevated at the set opening direction and the elevation height, the volume and shape of the transplantation space can be accurately measured. Therefore, water is injected after the formation of the transplantation opening to measure the volume of the transplantation space And the safety of the procedure can be improved by minimizing the delay in osseointegration of the graft material due to infections or residues that may be generated when water is injected.

Second, since the accurate volume and shape of the graft space can be measured through the vector data of the three-dimensional integrated image, graft aggregates to be injected in the previous stage of graft opening formation can be provided in a quantitative manner, It is possible to perform a quick procedure, and as the time for exposing the sinus membrane to the outside is minimized, safer operation is possible.

Third, unlike the case where powder-type graft material is directly injected into the bone-guiding regeneration block integrally formed with the graft space, the initial shape of the graft space is maintained without volume loss or shape change due to the tension of the sinus membrane during bone regeneration Since the alveolar bone can be reinforced, the residual bone necessary for positioning the fixture can be accurately formed and the accuracy of the procedure can be improved.

Fourthly, since the volume of the implantation space can be calculated as the number of unit volume type lattices through the block division image blocked by a unit volume, the volume of the bone induction reproduction block can be accurately and easily adjusted through the number of grid lines Therefore, it is possible to flexibly cope with the inevitable volume change of the implantable space.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exemplary view showing a conventional sinusoidal membrane elevation. FIG.
FIG. 2 is a flowchart illustrating a method of manufacturing a bone induction reproducing block according to an embodiment of the present invention. FIG.
3 is an exemplary view showing a three-dimensional integrated image in a method of manufacturing a bone induction reproducing block according to an embodiment of the present invention;
4 is a view showing a virtual arrangement of a maxillary sinus membrane in a method of manufacturing a bone induction reproducing block according to an embodiment of the present invention.
FIG. 5 is an exemplary view showing a virtual image of a sinus membrane in a method of manufacturing a bone-guided reconstruction block according to an embodiment of the present invention; FIG.
FIG. 6 is an exemplary view showing blocking of an implantation space in a method of manufacturing a bone induction regeneration block according to an embodiment of the present invention; FIG.
FIG. 7 is an exemplary block-divided image in a method of manufacturing a bone induction reproducing block according to an embodiment of the present invention; FIG.
FIG. 8 is an exemplary view showing a bone induction regeneration block in the method of manufacturing a bone induction regeneration block according to an embodiment of the present invention; FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a method of manufacturing a bone-guided reconstruction block according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a flowchart illustrating a method of manufacturing a bone induction regeneration block according to an embodiment of the present invention. FIG. 3 is a cross-sectional view of a bone induction regeneration block according to an embodiment of the present invention. FIG. 4 is a view showing a virtual arrangement of a maxillary sinus membrane in the method of manufacturing a bone-guided reconstruction block according to an embodiment of the present invention. FIG. 6 is a view showing an example of blocking of an implantation space in the method of manufacturing a bone induction regeneration block according to an embodiment of the present invention, and FIG. 7 Guided reconstruction block according to an embodiment of the present invention. Fig. 8 is a view showing an example of a bone induction reconstruction block according to an embodiment of the present invention. An exemplary view showing the lock.

The implant procedure is performed by forming a perforation in the alveolar bone using a drill and placing the fixture in the perforation. Here, the fixture serves to support the abutment and the crown, and the bone guiding / regenerating block is inserted to reinforce the alveolar bone and securely fix the fixture.

As shown in FIGS. 2 to 8, a method of manufacturing a bone-guided reconstruction block according to an embodiment of the present invention includes the following steps.

First, referring to FIGS. 2 to 3, a CT scan image and an oral scan image obtained for the inside of the subject's mouth are matched to obtain a three-dimensional integrated image (s10).

Here, the CT image includes information on the internal tissues such as the crown of the tooth (the upper side of the tooth appearing outside the gum), the root (the lower side of the teeth joined with the alveolar bone in the inside of the gum), and the alveolar bone in the oral cavity. That is, information about teeth and alveolar bone can be clearly displayed, but information on soft tissues such as gums can not be provided accurately.

On the other hand, the oral scan image can show the shape of the crown portion of the teeth exposed to the outside from inside the oral cavity and the shape of the gums around the teeth.

Then, when each image is acquired, a three-dimensional integrated image is obtained by matching each of the acquired images. Here, the matching of the images can be made based on the common part appearing in each image.

At this time, the common portion may be a crown itself, or a marker attached to a crown may be used.

Here, the term "image matching" can be understood as meaning that two images are combined based on a crown or a marker, which is common to the two images, and information about the root and alveolar bone connected to the crown, It can be understood that the information of the gums are matched to each other to have comprehensive information.

That is, the information of the peripheral teeth 14, the gums 12, the alveolar bone 11, etc. in the vicinity of the implant placement position and the placement position can be collectively displayed in the three-dimensional integrated image 20.

When the implant placement position is set, the shape of the crown is determined based on the peripheral tooth 14 and the shape of the gum 12, , And the direction of the placement can be set.

The abutment is selected according to the outer shape and the installation direction of the set crown, and the position and direction of the fixture for supporting the abutment, the diameter, the length, and the like can be selected.

2 to 4, when the three-dimensional integrated image 10 is acquired (s10), a virtual virtual image of a preset thickness along the inner surface of the alveolar bone 11 displayed on the acquired three- The maxillary sinus membrane 15 is displayed.

Here, the term alveolar bone 11 is understood to mean alveolar bone of the part where the implant placement position is set in the maxillary alveolar bone and the mandible alveolar bone. In this embodiment, the maxillary sinus 13 and the maxillary alveolar bone, .

In detail, the maxillary alveolar bone is composed of the cortical alveolar bone, the caudal alveolar bone, and the maxillary lower alveolar alveolar bone from the lower side. The cortical alveolar bone is covered with the gum 12, and the alveolar bone of the maxillary lower limb is covered with the maxillary sinus membrane. A maxillary sinusoid (13) connected to the nasal cavity is positioned on the upper part of the sinus membrane.

At this time, information about each part of the alveolar bone 11 is acquired through a CT image of the hard tissue, and can be displayed as an image on the three-dimensional integrated image 10, and dark white, . ≪ / RTI >

Information about the gums 12 may be acquired through an oral scan image and displayed in the three-dimensional integrated image 10. [

The information about the actual sinus membrane is difficult to be clearly displayed on the CT scan image due to the nature of the soft tissues and difficult to be imaged directly by the oral scanner or the like as it is located inside the alveolar bone.

At this time, an average thickness of the maxillary sinus membrane of a general adult is set to a preset thickness, and the average thickness of the sinusoidal bone is set to a preset thickness along the boundary between the alveolar bone 11 indicated by white in the three- Thick virtual sinusoidal membrane 15 can be displayed and used as a reference for calculating the injection amount of the graft material.

Here, it is preferable that the portion of the alveolar bone 11 that is in contact with the gum 12 is an outer surface, and the portion of the alveolar bone 11 that faces the maxillary sinus 13 is an inner surface.

For example, the virtual sinusoidal membrane 15 can be automatically displayed through an image processing program when a thickness is input, and a virtual sinusoidal membrane, which is manually displayed or automatically displayed by an expert such as a doctor or a prosthetist, It is also possible to display.

The elevation angle of the imaginary sinusoidal membrane 15 is calculated according to the thickness of the alveolar bone 11 in the portion corresponding to the implant placement position in step s20 in which the imaginary sinusoidal membrane 15 is displayed, The position of the implant opening is set corresponding to the height.

In this case, it is preferable that the implant placement position means a position where the fixture is placed.

Here, the height of the elevation can be calculated by comparing the thickness of the alveolar bone 11 indicated in the three-dimensional integrated image 10 with the length of the fixture at the implant placement position.

For example, the difference value between the value obtained by adding the predetermined safety thickness to the length of the part to be inserted into the alveolar bone 11 through the surface of the alveolar bone 11 in the fixture and the thickness of the alveolar bone 11 The elevation height can be calculated.

At this time, when the fixture is placed on the alveolar bone 11, the safety thickness is set such that the graft material injected between the sinus membrane and the end of the fixture can stably support the fixture without being damaged due to pressure during chewing It is preferable to understand that it means thickness.

Here, the calculation of the elevation height is performed by the expert in the state that the fixture having the diameter and length selected in correspondence with the crown and the abutment is converted into the three-dimensional image and is virtually arranged in the three- The elevation of the elevation can be calculated manually.

Of course, the three-dimensional vector data of the three-dimensional position, diameter, and length of the fixture may be calculated by calculating the thickness of the alveolar bone corresponding to the three-dimensional position of the fixture without virtual placement of the fixture separately, .

In this case, the elevation height is understood to mean the distance from the portion of the inner surface of the alveolar bone 11 through which the fixture penetrates to the imaginary sinusoidal membrane, with respect to the longitudinal direction when the fixture is placed.

Further, when the elevation height is calculated, the position of the graft opening can be set. That is, when the height is 4 mm or less, the position of the implant opening can be set to the alveolar bone adjustment of the implant placement position. In the case where the height of the implant is larger than 4 mm, And can be set as a side portion.

Herein, the implantation opening means a portion where the implantation aggregate is inserted between the maxillary sinus membrane and the inner surface of the alveolar bone, and the area of the implantation opening can be set according to the insertion amount of the implantation aggregate and the size of the implantation aggregate.

2 to 5, when the elevation height d is calculated (s20), the displayed imaginary sinusoidal membrane 15 is virtualized in accordance with the elevation height d and the position of the graft opening , The space between the virtual phantom sinus membrane 15 and the inner surface of the alveolar bone 11 is set as the implantation space g (s30).

More specifically, the virtual image of the imaginary sinusoidal membrane 15 can be made to correspond to the elevation height d of the distance from the portion through which the fixture passes through the alveolar bone to the imaginary sinusoidal membrane surface in the fixture mounting direction.

At this time, the shape of the imaginary sinusoidal membrane 15 may be varied depending on the position of the implant opening. That is, in the case where the implantation opening is formed in the alveolar bone adjustment and in the side surface of the alveolar bone, since the position and direction of force applied to the maxillary sinus membrane are different by the collimator device, And is formed in a different shape depending on the position of the opening.

For example, when the implantation opening is formed in the adjustment of the teeth, the hypothetical sinusoidal membrane 15 has a central portion of the hypothetical sinusoidal membrane 15 corresponding to a portion penetrated by the fixture on the inner surface of the alveolar bone, And the height of one side and the other end of the imaginary sinusoidal membrane 15 separated from the alveolar bone can be virtualized in the same shape.

When the implantation opening is formed on the side surface of the alveolar bone, the imaginary sinusoidal membrane 15 is biased to a side away from the implantation opening in the maxillary sinus, where the virtual sinusoidal membrane 15 is attached to the alveolar bone One side of the outer side is low and the other side adjacent to the implantation opening can be virtualized in a high shape.

At this time, it is preferable that the imaginary sinusoidal membrane 15 is elevated so as to satisfy a set height (d) in both cases. This is because the fixture is passed through the alveolar bone irrespective of the shape of the imaginary phantom, To the imaginary sinusoidal membrane 15 arranged in the direction of placement of the fixture from the portion of the virtual sinusoidal membrane 15 to the imaginary sinusoidal membrane 15.

In this case, the elevation shape of the imaginary sinusoidal membrane 15 due to the pressing direction of the elevation device according to the implantation opening is input as three-dimensional vector data as position information of the implantation opening, and when the end shape of the elevation device is inputted, And can be displayed on the three-dimensional integrated image 10. [0031] FIG.

At this time, the implantation space g may be set as a space between the surface of the imaginary sinusoidal membrane 15 and the inner surface of the partial alveolar bone 15, from which the imaginary sinusoidal membrane 15 is separated.

Since the imaginary sinus membrane is displayed in the three-dimensional integrated image 10 and the virtual sinusoidal membrane is virtualized by the set graft opening direction and the elevation height, the volume and shape of the graft space can be accurately measured. It is possible to eliminate the inconvenience of measuring the volume of the transplantation space by injecting and minimizing the delay in osseointegration of the transplantation aggregate due to infections or residues that may be generated when water is injected, thereby improving the safety of the procedure.

In addition, since the accurate volume and shape of the graft space can be measured through the vector data of the three-dimensional integrated image 10, the graft aggregate to be injected in the former stage of the graft opening can be quantitatively provided.

Therefore, it is possible to remove complicated additional procedures such as injecting the graft material, and confirming the bone mass reinforced by the CT scan, and re-injecting the graft material when the bone mass is insufficient, thereby delaying the fixture placement procedure And the time for exposing the sinus membrane to the outside is minimized, so that safer procedures can be performed.

Here, if the implantation space g is set (s30), a bone induction regeneration block corresponding to the set implantation space is prepared (s40).

At this time, the bone-guiding and regenerating block may be made of a graft material, and the graft material may contain a large amount of an inorganic material for the purpose of maintaining the shape of the graft space g, thereby preventing volume loss of the graft space g. A shape-retaining material, and a bone-growth inducing material that is absorbed by the existing alveolar bone and induces bone growth.

That is, the graft material is a shape-retaining material which is made of an inorganic material such as calcium and phosphate, which is the same as that of alveolar bone, and an organic material such as an extracellular matrix such as collagen or a growth factor such as BMP (bone morphogenetic protein) And an added bone growth inducing material.

The graft material may be formed of various sizes of particles such as powder, granol, chip, putty, etc., and a bone growth inducing material may be injected into the porous shape retention material. Of course, it is also possible to inject the shape-retaining material into the implantation space (g) in a state in which the shape-retaining material and the bone-growth inducing material are separately provided, followed by injecting the bone-growing induction material into the space between the shape- retaining materials.

Meanwhile, the step (s40) of producing the bone induction reproducing block may include the steps of obtaining three-dimensional vector data of the graft space g as design information, And then cutting it.

Thus, a bone guiding regeneration block that is fitted to the grafting space (g) can be manufactured.

Here, the present block means a combined body in which the graft aggregate is aggregated to a certain volume, and the present block is preferably provided in a larger volume than the grafting space (g).

That is, when the graft space g is set, the volume of the graft space g is calculated using the three-dimensional vector data of the three-dimensional unified image 10, After the design information is transferred to the CAM / CAM system, the present block can be cut to conform to the shape of the implantation space (g).

At this time, it is preferable that the size of the implantation opening is provided so that the processed bone induction reproducing block can be inserted.

In addition, when the implantation opening of the bone induction regeneration block is inserted, a galenaized bone growth inducing material may be applied to the surface of the bone induction regeneration block. After the bone growth induction material first galtenized with the implantation opening is injected, It is also possible to insert a reproduction block.

As described above, the bone-guiding and regenerating block integrally provided in the implantation space (g) is different from the bone-guided reconstruction block in that the powder-type implantable aggregate is directly injected into the implantation space (g) Since the initial shape of the implantation space g can be maintained and the alveolar bone can be reinforced, the residual bone necessary for the fixture can be accurately formed and the accuracy of the procedure can be improved.

In addition, since the implantation space (g) can be accurately filled with a single operation of inserting the bone induction regeneration block into the implantation opening, rapid operation can be performed without delaying the procedure due to lack of the implantation aggregate.

Meanwhile, the step (s40) of manufacturing the bone guide and regenerative block may include: obtaining three-dimensional vector data of the implantation space (g) as design information; modifying the powdered implantable aggregate and the thermosetting liquid It is also possible that the mixed molding paste is three-dimensionally printed.

Thus, a bone guiding regeneration block that is fitted to the grafting space (g) can be manufactured.

Here, the thermosetting liquid phase may be formed of biocompatible and thermosetting polylactic acid (PLA) resin, ABS (acrylonitrile butadiene styrene) resin, or the like.

At this time, the molding paste is provided as a mixture of the graft aggregate and the thermosetting liquid, and can be molded into a bone guiding regeneration block through the design information transmitted to the three-dimensional printer.

Accordingly, the bone-guiding and regenerating block can maintain the initial shape of the implantation space (g), reinforce the alveolar bone, accurately form the residual bone necessary for the fixture placement, By using the regeneration block, it is possible to perform the quick procedure without the delay of the procedure due to lack of the graft.

Of course, the size of the implantation opening may be limited according to the procedure, and in the case where the size of the implantation opening is limited, the bone induction regeneration block formed by cutting or three-dimensional printing is divided according to the size of the implantation opening .

That is, the three-dimensional vector data of the grafting space g may be divided into a cross section perpendicular to the insertion direction into the graft opening according to the cross-sectional area of the graft opening, A reproducing block can be manufactured. It is also possible that a plurality of the bone-guided recy- cling blocks manufactured beforehand are cut so as to correspond to the cross-sectional area of the graft opening.

At this time, each of the divided bone induction regeneration blocks can be sequentially inserted into the implantation opening according to the shape of the implantation space (g) in a state in which the gelled bone growth inducing material is applied along the cross-sectioned surfaces and the respective surfaces, And can be stacked in the implantation space (g) to reinforce the alveolar bone.

Referring to FIG. 6, step (s40) of producing the bone induction reproducing block 100 includes obtaining a block division image 20, and extracting the block division image 20 from the design information And the grid-shaped cutting guide groove 101 is formed along the surface of the bone-guiding and regenerating block 100.

Here, when the grafting space g is set in the three-dimensional integrated image 10, the three-dimensional vector data corresponding to the grafting space g may be divided according to a predetermined unit volume.

Referring to FIG. 7, each portion of the grafted space g partitioned according to the unit volume may be filled and removed according to the filling rate, and may be obtained as a block-divided image 20 as a unit block.

In detail, the filling rate is preferably understood as a ratio of the three-dimensional vector data of the graft space g partitioned into one unit volume within one unit volume.

For example, the filling rate can be calculated by dividing the volume of the graft space g partitioned inside one grid v by the unit volume after forming a grid-like coordinate system according to the unit volume.

At this time, when the filling rate is equal to or greater than a preset value, the grafted space g divided in the grid v is converted into a state filling the grid v completely, and when the filling rate is equal to or less than a predetermined value The block division image 20 can be obtained by repeating the process of removing the divided implantation space g inside the grid v corresponding to the grid v for each grid v.

Then, the bone induction reconstruction block 100, which is unitized through the obtained block-divided image 20, can be manufactured. At this time, the bone guiding / regenerating block 100 may be manufactured by cutting based on the block, and may be manufactured by three-dimensional printing through the paste.

As described above, the volume of the implantation space g can be calculated as the number of the unit volume type lattice v through the block-divided image 20 having a unit volume, and the number of the grid induction v Since the volume of the regeneration block can be accurately and easily adjusted, flexible coping is possible even when the volume of the implantation space g is inevitably changed.

Referring to FIG. 8, a grid-shaped cutting guide groove 101 corresponding to the unit volume v may be formed on the surface of the bone induction reproducing block 100.

Of course, it is also possible that the information of the cutting guide groove 101 is included in the design information in cutting or three-dimensional printing so that the bone guiding / regenerating block 100 is manufactured in a state in which the cutting guide groove 101 is formed. It is also possible to form the cutting guide groove 101 by secondary machining after manufacturing the induction regeneration block 100.

At this time, the cutting guide groove 101 is formed to be recessed along the surface of the bone guiding / regenerating block 100, and a part of the bone guiding / regenerating block 100 is removed along the cutting guide groove 101, The reproduction block 100 can be divided.

Accordingly, when the position, area, and elevation height of the implantation opening are changed due to unavoidable circumstances at the time of operation, the modified implantation opening area is changed through the cutting guide groove 101 indicating the unit volume so as to be matched with the volume of the implantation space (g) Correcting operations such as division / partial removal of the manufactured bone induction / regeneration block 100 can be accurately performed.

Meanwhile, the step (s40) of producing the bone induction reproducing block 100 includes the steps of acquiring the block division image 20 and arranging and combining the plurality of unit block images to match the block division image 20 It is also possible to have a step.

At this time, the unit block pattern may be manufactured by combining the divided graft aggregate with a volume corresponding to the unit volume, and the block may be manufactured by cutting the block by unit volume.

Here, the number of unit block bins to be inserted into the graft space g may be calculated through the block-divided image 20. [ In addition, the unit block block may be prepared according to the calculated number of blocks, and then arranged and combined so as to match the block division image, so that the ball guiding / reproducing block 100 may be manufactured.

At this time, it is preferable that the unit block bone is bonded to each other by a gelled bone growth inducer or an adhesive for implant.

In this case, the bone induction reproducing block 100 is arranged such that each unit block bone is inserted into the implantation space g and is matched with the block division image 20 in the implantation space g, .

Accordingly, even when the size of the implantation opening is limited, the bone induction regeneration block 100 can be easily inserted into the implantation space g.

In addition, the bone guiding regeneration block 100 that conforms to the volume of the grafting space g can be easily prepared according to the number of the unit volume type lattice v, so that the quick and accurate procedure This is possible.

That is, the number of unit block bins forming the bone induction reproducing block 100 is determined according to the number of the unit volume type grid v corresponding to the volume changed when the volume of the implantation space g partitioned by the unit volume is changed The bone induction regeneration block 100 of an accurate volume can be easily prepared.

Also, the bone guiding / regenerating block 100 may be inserted into the grafting space g in a state of being manufactured by coupling each unit block bone outside the grafting space g.

Accordingly, even when the position, area, and elevation height of the implantation opening are changed due to unavoidable circumstances during the procedure, the segmentation / partial removal of the bone induction reconstruction block 100 manufactured along the boundary where each unit block bone is combined Can be accurately performed.

As described above, the present invention is not limited to the above-described embodiments, and variations and modifications may be made by those skilled in the art without departing from the scope of the present invention. And such modifications are within the scope of the present invention.

1,11: alveolar bone 2,13: maxillary sinus
3: Sinus membrane 10: 3D integrated image
14: surrounding teeth 15: hypothetical sinus membrane
20: Block division image 100: Bone induction reproduction block
101: cutting guide groove v: lattice
g: Portable space

Claims (5)

A first step of acquiring a three-dimensional integrated image by matching the acquired CT scan image and the oral scan image with respect to the oral cavity of the subject;
The virtual phantom sinus membrane having a predetermined thickness is displayed along the inner surface of the alveolar bone displayed in the three-dimensional integrated image, and the height of the alveolar bone of the virtual sinusoidal membrane is calculated according to the alveolar bone thickness of the portion corresponding to the implant placement position, A second step of setting a position of the implantation opening;
A third step in which the displayed virtual phantom sinus membrane is virtualized in accordance with the elevation of the elevation and the position of the implantation opening, and between the virtual phantom sinus membrane and the alveolar bone inner surface is set as an implantable space; And
And a fourth step of producing a bone induction reproducing block corresponding to the set implantation space. The method according to claim 1,
The fourth step includes the steps of obtaining three-dimensional vector data of the implantation space as design information,
Wherein the bone block having the implantation aggregate bonded to the volume of the implantation space or more is cut and processed according to the obtained design information to produce the bone induction regeneration block that is formed in the implantation space. Gt; The method according to claim 1,
The fourth step includes the steps of obtaining three-dimensional vector data of the implantation space as design information,
Wherein the molding paste is mixed with the powder-type graft aggregate and the thermosetting liquid phase in accordance with the obtained design information so as to be three-dimensionally printed to produce the bone induction regeneration block that is formed in the graft space. A method of manufacturing a reclaimed block. The method according to claim 2 or 3,
The fourth step includes the steps of: obtaining three-dimensional vector data of the implantation space according to a predetermined unit volume, the divided parts being filled and removed according to a filling rate to form a block-segmented image;
And a step of forming grid-shaped cutting guide grooves corresponding to the unit volume along the surface of the bone-guiding and regenerating block, wherein the grid-shaped cutting guide groove is formed by obtaining design information of the block- A method for manufacturing a bone induction regeneration block. The method according to claim 1,
The fourth step includes the steps of: obtaining three-dimensional vector data of the implantation space according to a predetermined unit volume, the divided parts being filled and removed according to a filling rate to form a block-segmented image;
And a plurality of unit block bones formed by combining the implantable aggregates corresponding to the unit volume are arranged and combined so as to match with the block division image to thereby manufacture the bone bend reproduction block. Gt;
KR1020150079801A 2015-06-05 2015-06-05 method for manufacturing guided bone regeneration block KR101626347B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150079801A KR101626347B1 (en) 2015-06-05 2015-06-05 method for manufacturing guided bone regeneration block

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150079801A KR101626347B1 (en) 2015-06-05 2015-06-05 method for manufacturing guided bone regeneration block

Publications (1)

Publication Number Publication Date
KR101626347B1 true KR101626347B1 (en) 2016-06-01

Family

ID=56138483

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150079801A KR101626347B1 (en) 2015-06-05 2015-06-05 method for manufacturing guided bone regeneration block

Country Status (1)

Country Link
KR (1) KR101626347B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112716628A (en) * 2020-12-29 2021-04-30 江苏创英医疗器械有限公司 Implanting device and method for maxillary sinus implantation
WO2021235664A1 (en) * 2020-05-19 2021-11-25 오스템임플란트 주식회사 Maxillary sinus augmentation simulation method and apparatus therefor
WO2023008872A1 (en) * 2021-07-28 2023-02-02 오스템임플란트 주식회사 Method and apparatus for determining amount of bone graft, computer-readable recording media, and computer program

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200442905Y1 (en) 2006-12-18 2008-12-22 정관수 Drill which hole a bone possess of soft-tissue probation faculty
KR100932945B1 (en) * 2009-01-16 2009-12-21 원광대학교산학협력단 Solid scaffold formed with bone powder and fibrin glue
KR20100134104A (en) * 2008-05-23 2010-12-22 살바토레 롱고니 A method for designing and/or slecting a device and/or material for implanting in tissues of the human or animal body and a device and/or material obtained thereby
KR20110049884A (en) * 2008-08-26 2011-05-12 앤디 보이안기우 A dental bone implant, methods for implanting the dental bone implant and methods and systems for manufacturing dental bone implants
KR20110055908A (en) * 2009-11-20 2011-05-26 이태경 Method for manufacturing alveolar bone and method for manufacturing bone

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200442905Y1 (en) 2006-12-18 2008-12-22 정관수 Drill which hole a bone possess of soft-tissue probation faculty
KR20100134104A (en) * 2008-05-23 2010-12-22 살바토레 롱고니 A method for designing and/or slecting a device and/or material for implanting in tissues of the human or animal body and a device and/or material obtained thereby
KR20110049884A (en) * 2008-08-26 2011-05-12 앤디 보이안기우 A dental bone implant, methods for implanting the dental bone implant and methods and systems for manufacturing dental bone implants
KR100932945B1 (en) * 2009-01-16 2009-12-21 원광대학교산학협력단 Solid scaffold formed with bone powder and fibrin glue
KR20110055908A (en) * 2009-11-20 2011-05-26 이태경 Method for manufacturing alveolar bone and method for manufacturing bone

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021235664A1 (en) * 2020-05-19 2021-11-25 오스템임플란트 주식회사 Maxillary sinus augmentation simulation method and apparatus therefor
CN115461012A (en) * 2020-05-19 2022-12-09 奥齿泰有限责任公司 Maxillary sinus lifting simulation method and device
CN112716628A (en) * 2020-12-29 2021-04-30 江苏创英医疗器械有限公司 Implanting device and method for maxillary sinus implantation
WO2023008872A1 (en) * 2021-07-28 2023-02-02 오스템임플란트 주식회사 Method and apparatus for determining amount of bone graft, computer-readable recording media, and computer program

Similar Documents

Publication Publication Date Title
US8682043B2 (en) Method of merging anatomical data and surface data of a patient's dentition
US6645250B2 (en) Biocompatible form and method of fabrication
KR101638558B1 (en) digital onebody abutment for dental implant using digital library
Gamborena et al. Predictable immediate implant placement and restoration in the esthetic zone
US8419429B2 (en) Implant prosthetic part set and method of manufacturing replication plaster model including abutment using the same
KR101706335B1 (en) method for providing guide information of operation using surgical guide
US20110008754A1 (en) Patient-Specific Implants With Improved Osseointegration
JP6867047B2 (en) How to make a dental implant drill guide
KR20110055907A (en) Intraoral appliance for merging image of impression model and patient ct
KR101291754B1 (en) Implant parallel procedure device and method
KR101918936B1 (en) Tray-guide and Tray-guide manufacturing system
KR101626347B1 (en) method for manufacturing guided bone regeneration block
KR20150108535A (en) dental implant insertion set and method for manufacturing thereof
KR102013298B1 (en) manufacturing method for digital overdenture
US20080286714A1 (en) Impression Tray
KR20160011322A (en) Manufacturing method of dental implant using intra oral scanning and computer aided design library
KR102172860B1 (en) method and system for manufacturing surgical guide and dental implant in mouth
KR101675503B1 (en) reference wire attached in mouth and method for manufacturing surgical guide and crown, abutment using thereof for dental implant
Arcuri et al. Smart fusion vs. double scan: a comparison between two data-matching protocols for a computer guided implant planning
US11547537B2 (en) Method for producing dental adaptive element for alleviating recession of gingiva
US20160062346A1 (en) System and Method for Customized Anatomical Implant Prosthetic Pieces
KR101452718B1 (en) bite tray for image matching
TWI686182B (en) Dental implant aid and manufacturing method thereof
KR101675500B1 (en) method for manufacturing surgical guide for dental implant of edentulous patient
KR20200078782A (en) digital bridge apparatus for jawbone regeneration

Legal Events

Date Code Title Description
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20190425

Year of fee payment: 4