KR20220155492A - provisional prosthesis set for dental restoration and manufacturing method of provisional prosthesis using thereof - Google Patents

Abstract

The present invention provides a method for manufacturing a temporary prosthesis using a temporary prosthesis set for dental restoration in order to improve precision. The method for manufacturing a temporary prosthesis using a temporary prosthesis set for dental restoration comprises: a first step of obtaining a first scanning image displaying 3D surface information of the arch to be restored and a second scanning image displaying 3D surface information of an occlusion target portion by scanning each of upper and lower jaws of a patient whose at least one of the upper and lower jaws is edentulous jaw, and performing virtual occlusion corresponding to a preset vertical height; a second step of generating design information of a temporary prosthetic base including a virtual teeth portion in an occlusion space formed between the 3D surface information of the arch to be restored and the 3D surface information of the occlusion target portion, and generating design information of an alignment coupling jig along an occlusion line overlapping each tooth end image in which the virtual teeth portion and tooth portion information displayed on a second scanning image side are virtually occluded; a third step of manufacturing a real temporary prosthetic base and a real alignment coupling jig based on the design information of the temporary prosthetic base and the design information of the alignment coupling jig, placing the temporary prosthetic base in the arch to be restored, in which a temporary embedment hole is formed into which a temporary cylinder coupled to an upper end of an implant pre-placed in the arch to be restored is inserted, and aligning and constraining an occlusion position of the temporary prosthetic base by coupling the occlusion target portion and each tooth end of the temporary prosthetic base with a coupling groove formed in the alignment coupling jig; and a fourth step of manufacturing a temporary prosthesis by fixing the temporary cylinder to the temporary prosthetic base, in which the occlusion position is aligned and constrained through the alignment coupling jig, through a curable resin. Accordingly, precision of occlusion can be significantly improved.

Description

Provisional prosthesis set for dental restoration and manufacturing method of provisional prosthesis using the same

The present invention relates to a temporary prosthesis set for dental restoration and a method for manufacturing a temporary prosthesis using the same, and more particularly, to a temporary prosthesis set for dental restoration with improved precision and a method for manufacturing a temporary prosthesis using the same.

In general, dental restoration refers to artificial periodontal tissue in the oral cavity that artificially restores an appearance and function to replace a missing tooth. These dental restorations can be classified into dentures, which are bonded and fixed to the gum to be restored through an adhesive, or dental porsthesis, which are fixed to implants placed in alveolar bone.

In detail, the prosthesis includes an artificial tooth unit in which a plurality of artificial teeth replacing lost natural teeth are arranged or connected in a row corresponding to the arch shape of the gum to be restored. In addition, the prosthetic may further include an artificial gum portion that surrounds and connects the lower end of the artificial tooth portion. In this case, a plurality of implants may be spaced apart from each other along the arch of the gum to be restored, and a coupling part may be formed in the prosthesis corresponding to the implant placement position.

At this time, the prosthesis involves a series of steps such as the process of placing the implant and assembling the abutment, acquiring a scanning image for designing the prosthesis, and designing and manufacturing a final prosthesis based on the scanning image. manufactured through At this time, during the period of designing and manufacturing the final prosthesis, a temporary prosthesis that can be temporarily used by the patient is manufactured.

In detail, it is preferable that the temporary prosthesis is made of a synthetic resin material capable of 3D printing. At this time, the synthetic resin material used in the manufacture of the temporary prosthesis supports a predetermined mastication pressure in a final cured state, while maintaining an external temperature. It is preferable to be provided with a material that can minimize deformation due to. For example, the temporary prosthesis may be manufactured by 3D printing using a synthetic resin containing an acrylic oligomer. Accordingly, the manufacturing time of the temporarily used temporary prosthesis can be remarkably shortened, and discomfort during use by the patient during the manufacturing period of the final prosthesis can be reduced.

Here, a temporary burial hole is formed in the temporary prosthetic to correspond to an implantation position of the implant, and a temporary cylinder embedded and fixed in the temporary burial hole is coupled to the implant. Then, the temporary cylinder is coupled to the implant, and the temporary prosthesis is installed on the gum to be restored. Here, the temporary prosthesis is installed on the gum to be restored so that the temporary cylinder coupled to the implant is inserted into the temporary filling hole.

A curable resin is filled between the outer surface of the temporary cylinder and the inner surface of the temporary filling hole. Here, when the upper and lower jaws are occluded before the curable resin is cured, the position of the temporary prosthesis is moved to occlude and match the opposing arch through occlusion pressure. Also, when the curable resin is cured, the position of the temporary cylinder in the temporary filling hole may be fixed.

On the other hand, in the case of a patient whose teeth in the upper and lower jaws are all lost and dental restoration is simultaneously performed on the upper and lower jaws, the provisional prosthesis may also be provided corresponding to the upper and lower jaws.

However, in the case of a patient whose upper and lower jaws are both edentulous, when the upper and lower jaws are occluded to install the temporary prosthesis, there is substantially no shoulder tissue (for example, an opposing tooth) to guide the occlusion position of the temporary prosthesis. For this reason, there was a problem in that the maxillary side temporary prosthesis and the mandibular side temporary prosthesis could not be installed in a desirable occlusion relationship.

Moreover, the temporary prosthesis is also used as a means of providing design information of the final prosthesis. That is, accurate positional information of a coupling part where the final prosthesis is fixed to the implant can be obtained based on a temporary prosthesis scanning image obtained by scanning the entire inner and outer surfaces of the temporary prosthesis installed to fit the oral cavity. Also, based on the scanning image of the provisional prosthesis, information such as the masticatory surface and dentition of the artificial tooth part occluded with the opposing arch may be obtained.

However, when the temporary prosthesis is installed in the oral cavity, when the occlusal relationship between the temporary prosthesis and the opposing arch is not accurately aligned, there is a problem in that the accuracy of information included in the scanning image of the temporary prosthesis is lowered. Accordingly, the temporary prosthesis can be fixed out of a desired occlusion position and in a misaligned state, and a scanning image obtained by scanning the misaligned temporary prosthesis also includes image information that is misaligned with the dental restoration plan.

For this reason, the design information of the final prosthesis is generated differently from the dental restoration plan, and when the final prosthesis manufactured based on this design information is installed in the oral cavity, the occlusal relationship is not accurate, which increases discomfort.

Korean Patent Registration No. 10-0403834

In order to solve the above problems, an object of the present invention is to provide a temporary prosthesis set for dental restoration and a method for manufacturing a temporary prosthesis using the same.

In order to solve the above problems, the present invention scans the upper and lower jaws of a patient in which at least one of the upper and lower jaws is edentulous, respectively, so that the first scanning image displaying the 3D surface information of the arch to be restored and the 3D surface information of the occlusion target are provided. a first step in which a displayed second scanning image is obtained, and the first scanning image and the second scanning image are virtually occluded corresponding to a preset vertical height; Design information of a temporary prosthetic base including a virtual tooth is generated in an occlusal space spaced apart between the 3D surface information of the arch to be restored and the 3D surface information of the occlusion target, and the virtual tooth and the second scanning image side are generated. A second step of generating design information of an alignment type mating jig in which virtual mating parts corresponding to each of the tooth end images are formed on upper and lower surfaces along an occlusion line where the tooth part information displayed on is overlapped with each tooth end image in which virtual occlusion is performed; Based on the design information of the temporary prosthetic base and the design information of the alignment type combination jig, a real temporary prosthetic base and a real alignment type combination jig are manufactured, and a temporary cylinder coupled to the upper end of the implant pre-placed in the arch to be restored The temporary prosthetic base with the temporary filling hole to be inserted is disposed in the arch to be restored, and the occlusion target portion and each tooth of the temporary prosthetic base are molded into the matching groove formed in the alignment type joining jig, so that the occlusion position of the temporary prosthetic base is A third step of alignment constraints; and a fourth step of manufacturing a temporary prosthesis by fixing the temporary cylinder to the temporary prosthesis base whose occlusion position is aligned and constrained through the alignment-type joining jig through curable resin to manufacture the temporary prosthesis. A manufacturing method is provided.

On the other hand, according to the present invention, the 3D surface information of the arch to be restored and the 3D surface information of the occlusion target part displayed in the scanning image obtained by scanning the upper and lower jaws of a patient in which at least one of the upper and lower jaws is edentulous are scanned according to a preset vertical dimension. a temporary prosthetic base manufactured based on a virtual tooth part set in a spaced apart occlusal space and having a temporary filling hole formed in response to implant placement information to be placed in the arch to be restored; a temporary cylinder having a temporary coupling portion into which an upper end of the implant is inserted and fixed, inserted into the temporary filling hole and fixed to the temporary prosthetic base through a curable resin; and the temporary prosthetic base and the occlusion target corresponding to each tooth edge image of the 3D surface information of the arch to be restored and the 3D surface information of the occlusion target so that the temporary prosthetic base and the occlusion target are aligned and occluded corresponding to a preset occlusion position. Provided is a temporary prosthetic set for dental restoration including an alignment-type aligning jig having recessed shaping grooves formed on upper and lower surfaces to mate each tooth edge of an occlusion target unit.

Through the above solution, the present invention provides the following effects.

First, as the occlusal position of the temporary prosthetic base is constrained through an alignment-type joint jig formed with a molding groove in which the temporary prosthetic base and each tooth on the occlusion target side are fused, the temporary cylinder is buried and fixed in the temporary filling hole in response to the desired occlusion relationship. The occlusion precision between the provisional prosthetic and the antagonist can be remarkably improved.

Second, as the temporary fixing resin injection hole is formed through the side of the temporary prosthetic base to communicate with the temporary burial hole, a small amount of hardenable resin is injected into the temporary burial hole and hardened while the aligned joint jig is closed, and the temporary cylinder is formed in the temporary prosthetic base. Since it can be temporarily fixed in an accurate position, the positioning precision can be further improved.

Third, the upper and lower jaws are simultaneously engaged through the aligned combination jig and restrained in an accurate occlusion relationship, so if both the upper and lower jaws are edentulous or the implant/abutment/temporary cylinder is placed/fixed in the oral cavity after tooth extraction, the temporary cylinder can be fixed to the temporary prosthetic base immediately. This can significantly improve precision and speed during manufacturing.

Fourth, the design of the temporary prosthesis and the design of the alignment type jig that guides the occlusion position between the temporary prosthesis and the opposing arch are simultaneously obtained through the same image information set based on the scanning image of the upper and lower jaws with virtual occlusion corresponding to the preset vertical height. As a result, mutual matching accuracy can be remarkably improved.

1 is a flowchart illustrating a method of manufacturing a temporary prosthesis using a temporary prosthesis set for dental restoration according to an embodiment of the present invention.
2 is a block diagram of a temporary prosthesis set for dental restoration according to an embodiment of the present invention.
3 is an exemplary diagram illustrating a process of generating design information of a temporary prosthetic base according to an embodiment of the present invention;
Figure 4 is an exemplary view showing a process of generating the design information of the alignment-type combination jig according to an embodiment of the present invention.
5A and 5B are a perspective view and a cross-sectional view in which the inside of a temporary prosthetic base is projected according to an embodiment of the present invention.
Figures 6a and 6b is an exemplary view showing the upper and lower surfaces of the alignment-type bonding jig according to an embodiment of the present invention.
Figure 7 is a cross-sectional view of an alignment-type combination jig according to an embodiment of the present invention.
Figure 8 is a cross-sectional example showing a state in which the upper and lower jaws are interlocked and aligned through an alignment-type combination jig according to an embodiment of the present invention.
9A and 9B are exemplary diagrams illustrating a process of fixing a temporary cylinder according to an embodiment of the present invention.
10 is a cross-sectional view of a temporary prosthesis manufactured according to an embodiment of the present invention.

Hereinafter, a temporary prosthetic set for dental restoration and a method of manufacturing a temporary prosthesis using the same according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

At this time, dental restoration is to replace at least one lost tooth using artificial periodontal tissue. In the present invention, at least one side of the upper and lower jaws is to fix a prosthesis through an implant placed in the oral cavity of a patient who is edentulous. It is desirable to understand That is, it is preferable to understand that the prosthesis applied to the present invention is a complete prosthetic used for restoring the teeth of an edentulous jaw. And, it is preferable to understand that the implant is a fixture that is placed in the alveolar bone so that the dental restoration is fixed to the oral cavity.

In the following, it is preferable to understand that a restoration target arch is a dental arch requiring dental restoration treatment through the prosthesis, and an occlusion target unit is an arch that is occluded with the restoration target arch, and includes a dental target portion. In this case, the tooth target portion may be a natural tooth remaining on the opposing side or an artificial tooth that has been previously implanted. Alternatively, the dental target portion may be a temporary prosthesis manufactured according to the present invention.

That is, the present invention can be applied when manufacturing a prosthetic for a patient whose upper and lower jaws are edentulous, and temporary prostheses applied to the upper and lower jaws can be aligned in a desirable occlusion position through an alignment-type combination jig described later. In addition, a temporary cylinder pre-fixed to the arch to be restored may be coupled to each of the temporary prosthesis arranged in this way through a series of processes described later. Hereinafter, both the arch to be restored and the occlusion target portion will be described and illustrated as being edentulous. Further, in the embodiment of the present invention, the arch to be restored is the lower jaw, the occlusion target part is the upper jaw, and the tooth target part is described and illustrated as a temporary prosthetic provided in the occlusion target part.

1 is a flowchart illustrating a method of manufacturing a temporary prosthesis using a temporary prosthesis set for dental restoration according to an embodiment of the present invention.

Referring to FIG. 1 , in the method of manufacturing a temporary prosthesis using a temporary prosthetic set for dental restoration according to an embodiment of the present invention, scanning images obtained for the upper and lower jaws are virtually occluded (s10), and a temporary prosthetic base is designed. It includes generating information and design information of the aligned combination jig (s20), aligning and restricting the occlusal position of the temporary prosthetic base through the aligned combination jig (s30), and finally manufacturing the temporary prosthesis (s40).

These series of processes may be created and manufactured through a prosthesis manufacturing system for dental restoration. Here, the system for manufacturing a prosthesis for dental restoration may be used not only for the temporary prosthesis but also for designing and manufacturing a final prosthesis.

In detail, the scanning images may be obtained through an imaging device such as a scanner or a CT imaging device. That is, scanning images of the upper and lower jaws may be obtained by scanning the oral cavity or the external appearance of an impression model manufactured to correspond to the oral cavity using the scanner. In addition, a CT image including maxillary and mandibular alveolar bone information may be further obtained by using the CT imaging device.

Also, the scanning images and the CT image obtained through the imaging device may be transmitted to a planning unit through wired/wireless communication. Here, the planning unit establishes a dental restoration plan using the scanning images and 3D external information for designing a prosthesis for dental restoration, and design information of the final prosthesis and the temporary prosthesis used in the manufacturing process of the final prosthesis. It is desirable to understand it as a computer simulation device that generates.

That is, the scanning images obtained using the imaging device and the 3D shape information pre-stored in the digital library are loaded into the planning unit. At this time, it is preferable to understand that the digital library is a storage in which three-dimensional shape information for designing the prosthesis for dental restoration is stored as vector data. In addition, the dental restoration plan can be precisely established using the scanning images and the 3D external information.

Meanwhile, the design information generated by the planning unit is transmitted to a manufacturing device, through which a real temporary prosthesis and a real final prosthesis can be manufactured. Hereinafter, it will be described that the manufacturing device is a 3D printer provided for manufacturing the temporary prosthesis.

2 is a block diagram of a temporary prosthesis set for dental restoration according to an embodiment of the present invention. Hereinafter, it is preferable to understand that the temporary prosthetic set for dental restoration and the temporary prosthetic set have the same meaning.

Referring to FIG. 2 , a temporary prosthetic set 100 according to the present invention includes a temporary prosthetic base 10, a temporary cylinder 30, and an aligned joint jig 20, which will be described later.

3 is an exemplary diagram illustrating a process of virtual occlusion of a scanning image according to an embodiment of the present invention.

Referring to FIG. 3 , the scanning images are acquired through the imaging device and loaded into the planning unit. Also, it is preferable that the scanning images loaded into the planning unit are virtually occluded corresponding to a preset vertical diameter (VD) to generate a 3D planning image (M).

Here, it is preferable that the scanning images include a first scanning image m1 obtained for the dental arch to be restored and a second scanning image m2 obtained for the object to be occluded.

In detail, the first scanning image m1 is preferably obtained by moving the imaging device along the dental arch of the dental arch to be restored where a gum portion, which is a soft tissue, is exposed due to missing or extracted teeth. Therefore, it is preferable that the first scanning image m1 includes 3D surface information m1a of the arch to be restored, in which the overall appearance of the labial, buccal, and lingual sides of the arch to be restored is displayed as an image.

Preferably, the second scanning image m2 is obtained by moving the imaging device along the dental arch of the object to be occluded. Here, it is preferable to understand that the occlusion target part is an opposing dental arch that is occluded with the dental arch to be restored. Accordingly, it is preferable that the second scanning image m2 includes 3D surface information m2a of the occlusal target part in which the overall appearance of the labial, buccal, and lingual sides of the dental arch is displayed as an image. In this case, the second scanning image m2 may further include tooth portion information m3.

Here, it is preferable to understand that the tooth portion information m3 is a tooth image arranged along the dental arch line of the occlusion target portion three-dimensional surface information m2a. The tooth information m3 may be image information obtained by scanning the overall appearance of the opposing arch with the external appearance of teeth remaining in the opposing arch.

Alternatively, the tooth portion information m3 is virtually arranged in the second scanning image m2 obtained by scanning the occlusion target portion 2 in which the gum portion, which is a soft tissue, is exposed, similarly to the dental arch 1 to be restored. It may be a tooth part. That is, when both the upper and lower jaws are edentulous, the tooth portion information m3 displayed in the occlusion target portion 3-dimensional surface information m2a is a virtual tooth portion displayed in the 3-dimensional surface information m1a of the arch to be restored ( m11) may be a virtual tooth part that occlusion matches. Hereinafter, the tooth portion information m3 is described and illustrated as a virtual tooth portion virtually disposed on the side of the second scanning image m2.

Meanwhile, it is preferable that the first scanning image m1 and the second scanning image m2 are virtually occluded corresponding to the vertical height VD. Then, when the first scanning image m1 and the second scanning image m2 are virtually occluded, the 3D surface information m1a of the dental arch to be restored and the 3D surface information m2a of the occlusion part are spaced apart. and an occlusal space can be formed between each 3D surface information. At this time, it is preferable that design information m10 of the temporary prosthetic base including the virtual teeth m11 is created in the occlusal space.

In detail, it is preferable to understand that the virtual tooth part m11 is three-dimensional external information of an artificial tooth pre-stored in the digital library. It is preferable to understand that the virtual tooth part m11 is a set image in which tooth images corresponding to each tooth are virtually arranged corresponding to a standard dental arch. This virtual tooth part m11 may be pre-stored in the digital library, loaded into the planning part, and then adjusted to a size corresponding to the first scanning image m1.

In addition, the 3D surface information of the temporary prosthetic base 10 connects the root side end of the virtual tooth part m11 and the virtual gum part formed so that the inner surface matches the 3D surface information m1a of the arch to be restored ( m12) may be included. In addition, the 3D surface information m10 of the temporary prosthetic base may include a virtual filling hole m13 corresponding to a temporary filling hole into which a temporary cylinder coupled to the arch to be restored is inserted.

Figure 4 is an exemplary view showing a process for generating the design information of the alignment-type combination jig according to an embodiment of the present invention.

Referring to FIGS. 3 and 4 , it is preferable that the virtual tooth part m11 and the tooth part information m3 are virtually occluded. At this time, it is preferable that the occlusion line (b) overlapping the virtual tooth part m11 and the tooth end images m3a and m11a of the tooth part information m3 is set in the horizontal direction. In addition, it is preferable that design information m20 of an alignment type combination jig having virtual matching parts m22 and m23 formed on the upper and lower surfaces corresponding to the tooth end images m3a and m11a along the occlusion line b is generated.

Here, the design information m20 of the alignment-type fusion jig may be set through a series of steps to be described later.

First, it is preferable that the virtual jig base (m21) is virtually arranged along the occlusion line (b). At this time, it is preferable that the cross-sectional area of the virtual jig base m21 is set to an area exceeding the overall overlapping area where the tooth-end images m3a and m11a are overlapped. Also, the virtual jig base m21 is preferably formed to a thickness overlapping simultaneously with the virtual tooth portion m11 and the tooth edge images m3a and m11a of the tooth portion information m3.

And, it is preferable that the area where the virtual jig base m21 and the tooth-end images m3a and m11a overlap is set as the erased area d.

In detail, a first boundary line e1 may be set along a boundary where one of the upper and lower surfaces of the virtual jig base m21 and the tooth end image m11a of the virtual tooth part overlap and intersect. Also, a second boundary line e2 may be set along a boundary where the other surface of the virtual jig base m21 overlaps and intersects the tooth tip image m3a of the tooth portion information.

Here, the three-dimensional surface information of one side and the other side of the virtual jig base m21 located inside the first boundary line e1 and the second boundary line e2 can be set as the erase area d. . And, each of the tooth end images m3a and m11a located in the space between the upper and lower surfaces of the virtual jig base m21 based on the first boundary line e1 and the second boundary line e2 is the first boundary line It may be connected to the virtual body outside the line e1 and the second boundary line e2.

At this time, when the erase area d is erased, inner sides of the first boundary line e1 and the second boundary line e2 may be opened. Also, each of the tooth-end images m3a and m11a connected to the first boundary line e1 and the second boundary line e2 may be set in a groove shape. That is, each of the tooth edge images m3a and m11a disposed inside the virtual jig base m21 based on the first boundary line e1 and the second boundary line e2 is the virtual shape matching portion m22 , m23).

As such, the present invention can obtain accurate design information based on the scanning images obtained through the oral cavity of the patient without a separate impression taking process and the virtual tooth part m11 and tooth part information m3 previously stored in the digital library. can In addition, design information of the virtual matching parts m22 and m23 can be precisely set through the scanning image, the virtual tooth part m11, and the tooth part information m3.

In addition, design information m10 of the temporary prosthetic base and design information m20 of the aligned combination jig may be simultaneously acquired based on the same image information included in the 3D planning image M. Therefore, the shape and occlusion accuracy between the real temporary prosthetic base, the real aligned joint jig, and the real occlusion target can be remarkably improved.

Meanwhile, it is preferable that the real temporary prosthetic base and the real aligned combination jig are manufactured based on the design information (m10) of the temporary prosthetic base and the design information (m20) of the aligned combination jig. For example, the temporary prosthetic base and the alignment-type combination jig may be manufactured by being 3D printed using an oligomer acrylic resin as a material and cured through a photocuring device. Through this, the finally manufactured temporary prosthetic base and alignment-type combination jig can be formed with rigidity that is not unnecessarily deformed due to external force, while design and actual manufacturing proceed quickly.

5A and 5B are perspective views and sectional views in which the inside of a temporary prosthesis base is projected according to an embodiment of the present invention. And, Figures 6a and 6b is an exemplary view showing the upper and lower surfaces of the alignment-type combination jig according to an embodiment of the present invention, Figure 7 is a cross-sectional view of the alignment-type combination jig according to an embodiment of the present invention.

4 to 5B, the temporary prosthetic base 10 preferably includes a temporary tooth portion 11, a temporary gum portion 12, and a temporary filling hole 13.

In detail, the temporary tooth part 11 may be manufactured in real life based on the design information of the virtual tooth part m11. The temporary tooth portion 11 may be formed in a shape similar to a real tooth, and a chewing surface 11b is formed on the tooth end side. Also, the temporary gum portion 12 may be formed to surround and connect the lower end of the temporary tooth portion 11 as a whole based on the virtual gum portion m12. In addition, the temporary filling hole 13 may be formed corresponding to the implant placement information (A in FIG. 3).

At this time, the temporary tooth portion 11 and the temporary gum portion 12 may be separately manufactured and then assembled. That is, the temporary tooth part 11 may be manufactured by 3D printing with a material containing a color pigment similar to the color of an actual tooth, and the temporary gum part 12 may be made of a material containing a color pigment similar to the color of an actual tooth. It can be manufactured by 3D printing.

Alternatively, as shown in the drawing, the temporary prosthetic base 10 may be integrally formed with the temporary tooth portion 11 and the temporary gum portion 12. In detail, the temporary tooth portion 11 and the temporary gum portion 12 are integrally 3D printed, and the outer surface of the portion corresponding to the temporary gum portion 12 may be applied in a color similar to the actual gum color. . Through this, as the manufacture of the temporary prosthesis 50 is easy and the sense of aesthetics is improved, even when the patient temporarily uses the temporary prosthesis 50, satisfaction with use through improvement in aesthetics can be significantly improved. In this embodiment, the temporary prosthetic base 10 is shown as having the temporary tooth portion 11 and the temporary gum portion 12 integrally formed.

And, it is preferable that the temporary filling hole 13 is formed to correspond to the position of the temporary cylinder coupled to the dental arch to be restored. At this time, the temporary cylinder may be fixed to the dental arch to be restored through an abutment coupled to an upper end of the implant already placed in the dental arch to be restored. Therefore, it is more preferable that the location of the temporary filling hole 13 is set corresponding to the implant placement information (A in FIG. 3). In addition, the temporary filling hole 13 may be formed so that its inner diameter exceeds the outer diameter of the insertion part side of the temporary cylinder.

At this time, although the temporary filling hole 13 is shown as penetrating a portion corresponding to the center of the temporary tooth portion 11 in the drawing, the temporary filling hole 13 is formed in the oral cavity in the temporary gum portion 12. It may be formed to pass through a portion extending to the lingual or palatal side of the tongue.

Meanwhile, the temporary cylinder is a part fixed to the upper end of the implant. Also, the temporary cylinder fixed to the upper end of the implant is inserted into the temporary filling hole 13 and fixed to the temporary prosthetic base 10 through a curable resin. A more detailed description of the temporary cylinder will be described later.

Referring to Figures 6a to 7, it is preferable that the alignment type combination jig 20 includes a body portion 21 and a molded groove. At this time, it is preferable that the mold hap groove includes a first mold hap groove 22 and a second mold hap groove 23 . In detail, the molded groove is formed based on the virtual molded parts m22 and m23. Therefore, when the alignment type mating jig 20 is bitten, the temporary prosthetic base 10 and the actual occlusion target part can be aligned and occluded corresponding to the preset occlusion position.

At this time, the alignment type fusion jig 20 is manufactured by 3D printing based on the design information of the alignment type fusion jig precisely designed through the 3D planning image. Therefore, in the alignment type combination jig 20, the partition wall 21a corresponding to the gap between the interdigitated teeth in a state in which the temporary tooth portion and the tooth target portion are occluded may be formed with a minimum thickness.

In addition, after the alignment-type combination jig 20 is three-dimensionally printed, it may have rigidity that is not substantially deformed by an external force through a photocuring process. Through this, it is possible to prevent the interlocking position of the temporary tooth portion and the tooth target portion from being changed in a closed state of the alignment-type combination jig 20 . In addition, each tooth end of the temporary tooth portion and the tooth target portion is formed to substantially match the first shape matching groove 22 and the second shape matching groove 23. Therefore, it is possible to substantially prevent the temporary tooth portion and the tooth target portion from moving within the upper and lower jaws. Through this, even when the upper and lower jaws are entirely edentulous, a pair of temporary prostheses prepared for restoration of the upper and lower jaws can be aligned in an accurate occlusion relationship.

Furthermore, since the alignment-type combination jig 20 is manufactured based on the 3D planning image, the occlusion relationship between the upper and lower jaws established in the design process may be reflected. Therefore, it is possible to fundamentally eliminate the problem that an accurate occlusion position cannot be considered when the temporary tooth part and the tooth target part are twisted in the process of adjusting the occlusion of the upper and lower jaws through a soft material such as putty. In addition, in the process of biting the putty and matching the occlusion, it is possible to prevent in advance that each tooth is excessively spaced back and forth or up and down due to the volume of the putty.

8 is an exemplary cross-sectional view showing a state in which the upper and lower jaws are occluded and aligned through an alignment-type combination jig according to an embodiment of the present invention.

Referring to FIG. 8 , it is preferable that the temporary prosthetic base 10 is disposed on the dental arch 1 to be restored. At this time, the temporary cylinder 30 may be previously fixed to the dental arch 1 to be restored through a series of steps described below, and the temporary prosthetic base 10 has the temporary cylinder 30 in the temporary buried hole ( 13) to be inserted into the arch 1 to be restored.

In addition, the first shape matching groove 22 and the second shape matching groove ( 23), respectively. At this time, it is preferable to understand that the tooth edge 3a of the occlusion target portion 2 is substantially the tooth edge 3a of the tooth target portion 3. Through this, the occlusal position of the temporary prosthetic base 10 can be aligned and restrained.

In detail, the implant (f) is placed in the dental arch (1) to be restored, and the abutment (5) is coupled to the upper end of the implant (f). And, the temporary cylinder 30 is fixed to the post 5a, which is the upper structure of the abutment 5, through a screw 34.

Here, it is preferable that a temporary coupling part 31 is formed inside the temporary cylinder 30 into which the upper end of the implant f, that is, the post 5a is inserted and connected through the screw 34. At this time, the temporary cylinder 30 has a through hole 32 formed along the longitudinal direction, and the temporary coupling part 31 communicates with the lower end of the through hole 32 . In addition, a ring-shaped engaging step 33 is formed between the through hole 32 and the temporary coupling part 31, and as the head of the screw 34 is caught on the engaging step 33, the temporary A cylinder 30 may be coupled to the post 5a. That is, when the temporary cylinder 30 is fixed to the implant f, it is preferable to understand that the temporary cylinder 30 is fixed to the post 5a coupled to the implant f.

Meanwhile, the temporary prosthetic base 10 is installed in the arch 1 to be restored. In detail, the temporary prosthetic base 10 may be installed such that the temporary cylinder 30 fixed to the implant f is inserted into the temporary filling hole 13 .

In addition, the alignment type joint jig 20 is disposed between the temporary prosthetic base 10 installed in the dental arch 1 to be restored and the tooth target portion 3. At this time, each tooth end of the temporary prosthetic base 10 and the tooth target part 3 is formed in the first shape combination groove 22 and the second shape combination groove 23 formed on the upper and lower surfaces of the alignment type combination jig 20. When (3a, 11a) is inserted and molded, the position where the temporary prosthetic base 10 and the tooth target part 3 are aligned and occluded in a desirable occlusion relationship can be restrained.

Here, the first shape combination groove 22 and the second shape combination groove 23 are the tooth edges of each temporary tooth/teeth arranged along the entire dental arch of the temporary prosthetic base 10 and the tooth target part 3. (3a, 11a) are formed to be inserted and molded at the same time. Therefore, the position of the temporary prosthetic base 10 can be naturally aligned through the occlusal pressure applied by the patient biting the alignment type combination jig 20 . Through this, even when both the upper and lower jaws are edentulous, the positions of the temporary prosthetic base 10 of the upper and lower jaws can be accurately aligned and restrained.

Moreover, the first shape combination groove 22 and the second shape combination groove 23 consider the shape of the masticatory surface formed on each of the tooth ends 3a and 11a of the temporary prosthetic base 10 and the tooth target part 3. are precisely designed and manufactured. Accordingly, the alignment position and direction of the temporary prosthetic base 10 can be more accurately guided.

9A and 9B are exemplary views illustrating a process of fixing a temporary cylinder according to an embodiment of the present invention.

Referring to FIGS. 9A and 9B , the temporary cylinder 30 is preferably buried and fixed to the temporary prosthetic base 10 whose occlusion position is aligned and constrained through the alignment-type joining jig 20 . That is, the filling space between the temporary filling hole 13 and the temporary cylinder 30 is filled with the curable resin (r), and when the curable resin (r) is cured, the temporary cylinder 30 is the temporary prosthesis. It can be fixed to the base 10. Through this, the temporary prosthesis 50 may be finally manufactured.

At this time, referring to FIGS. 5A and 5B, it is preferable that a temporarily fixed resin injection hole 14 is formed in the temporary prosthetic base 10. In detail, the temporarily fixed resin injection hole 14 is preferably formed through the side of the temporary prosthetic base 10 so as to communicate with the temporary filling hole 13 . The temporarily fixed resin injection hole 14 may be formed to a size sufficient to insert an injection end of an injection mechanism (s) such as a syringe for injecting the curable resin (r).

Here, the temporarily fixed resin injection hole 14 is preferably formed in a portion corresponding to the premolar. Therefore, when the mouth is opened, the temporary fixation resin injection hole 14 can be prevented from being directly exposed, and the aesthetic feeling can be remarkably improved. In addition, since the temporarily fixed resin injection hole 14 is formed on the molar side, the inconvenience of having to open the mouth excessively when injecting the curable resin (r) is fundamentally eliminated, so the convenience of the procedure can be significantly improved.

In addition, the temporary cylinder 30 may be fixed to the temporary prosthetic base 10 through the following series of processes.

First, referring to FIG. 9A, the temporary prosthetic base 10 and the tooth target part 3 are occluded through the temporary fixation resin injection hole 14 through the alignment-type combination jig 20. It is preferable that the curable resin (r) is pre-injected. Here, it is preferable to understand that preliminary injection means injection in an amount sufficient to partially fix the temporary prosthetic base 10 and the temporary cylinder 30 through the curable resin r. In addition, when the pre-injected curable resin r is cured, the temporary cylinder 30 may be temporarily fixed in the temporary filling hole 13 . Here, "temporarily fixed" is understood to mean that the position of the temporary prosthetic base 10 is fixed to such an extent that the position of the temporary prosthetic base 10 is not unnecessarily changed as the temporary cylinder 30 is partially attached to the inside of the temporary filling hole 13. desirable.

That is, the occlusal position of the temporary prosthetic base 10 is constrained through the alignment-type combination jig 20 . Therefore, the position where the temporary cylinder 30 is temporarily fixed can be fixed in a state in which an accurate occlusion relationship between the temporary prosthetic base 10 and the tooth target part 3 is considered. At this time, after pre-injecting the curable resin (r) so that the curable resin (r) is rapidly cured, curing light may be irradiated using a small photocurer.

In addition, when the curable resin (r) is cured and the temporary cylinder 30 is temporarily fixed to the temporary prosthetic base 10, the mouth is opened so that the upper and lower jaws are spaced apart, and the alignment-type combination jig 20 is moved to the dental arch to be restored. It is separated from (1).

At this time, referring to FIG. 9B , while the alignment-type combination jig 20 is separated, an open portion of the temporary filling hole 13 formed in the temporary prosthetic base 10 may be exposed. Here, the curable resin r is completely filled between the temporary filling hole 13 and the temporary cylinder 30 through the open portion of the temporary filling hole 13 and cured. Here, fully filled means that the curable resin (r) is filled up to the entire filling space between the temporary cylinder 30 and the temporary filling hole 13 and the inside of the temporarily fixed resin injection hole 14. this is preferable Through this, the temporary cylinder 30 can be fixed to the temporary prosthetic base 10 in an accurate position.

As such, in the present invention, the temporarily fixed resin injection hole 14 communicating with the temporary filling hole 13 is formed in the temporary prosthetic base 10 . Accordingly, the temporary cylinder 30 may be temporarily fixed to the temporary prosthetic base 10 in a state in which the upper and lower jaws are occluded in a desirable occlusion relationship. Through this, the problem of the temporary prosthesis base 10 being fixed to the temporary cylinder 30 in a state where the occlusion of the upper and lower jaws is misaligned is fundamentally prevented, and thus the occlusion accuracy of the upper and lower jaws in which the temporary prosthesis is installed can be remarkably improved. In addition, since the position of the temporary prosthesis base 10 is fixed in a state of being occluded according to the patient's actual occlusion position through the alignment type matching jig 20, the accuracy of occlusion between the temporary prosthesis and the occlusion target can be further improved. have.

10 is a cross-sectional view of a temporary prosthesis manufactured according to an embodiment of the present invention.

Referring to FIG. 10 , the temporary prosthesis 50 manufactured through the above process may include the temporary tooth portion 11, the temporary gum portion 12, and the temporary coupling portion 31. Here, the temporary tooth portion 11 and the temporary gum portion 12 are formed based on the temporary prosthetic base 10 . And, the temporary coupling part 31 is formed based on the groove shape of the lower end of the temporary cylinder 30 embedded and fixed in the temporary filling hole 13 . That is, it is preferable to understand that the temporary cylinder 30 coupled to the temporary prosthesis base 10 is the temporary prosthesis 50.

The temporary prosthesis 50 manufactured in this way can be temporarily used during the manufacturing period of the final digital prosthesis for restoring the patient's teeth. In addition, since the temporary prosthesis 50 is manufactured according to the occlusion relationship between the upper and lower jaws, design information of the digital prosthesis can be accurately obtained using a scanning image obtained by scanning the temporary prosthesis 50 . Through this, the accuracy and precision of the finally manufactured digital prosthesis can be remarkably improved.

On the other hand, although not shown in the drawings, the temporary prosthetic base 10 may further form an aligned combined extension portion along the outer edge of the temporary gum portion 12 . The aligned joint extension part may be formed to conform to the surface of the oral cavity further extending from the outer surface of the gum part of the dental arch to be restored to the labial, buccal, or hard palate side where the temporary gum part 12 is seated/formed. And, it can be connected through a plurality of bridges supporting the gap between the alignment-type combined extension and the outside of the temporary gum portion 12.

That is, when the temporary prosthetic base 10 is installed in the oral cavity, the molded area between the arch 1 to be restored and the temporary prosthetic base 10 increases through the aligned joint extension. Thus, the temporary prosthetic base 10 can be placed in a more accurate position. In addition, when the temporary cylinder 30 is embedded and fixed in the temporary filling hole 13 through the above-described series of processes, the aligned combined extension part can be separated from the temporary prosthesis 50 by cutting the bridge. . Therefore, since the size of the temporary prosthesis 50 is compact, it is possible to fundamentally solve the problem that the temporary prosthesis 50 excessively compresses the gum, which is a soft tissue, when used by a patient.

Moreover, the aligned type combined extension unit is also set and manufactured based on the 3D planning image. Accordingly, the degree of conformity between the temporary prosthetic base 10 integrally formed with the alignment-type joint extension and the arch 1 to be restored can be remarkably improved.

As described above, the present invention is the alignment type in which the matching grooves 22 and 23 are formed in which the temporary prosthetic base 10 and the tooth ends 3a and 11a on the side of the occlusion target portion 2 are matched. A joint jig 20 is provided. Therefore, as the occlusal position of the temporary prosthetic base 10 is constrained through the alignment-type combining jig 20, the temporary cylinder 30 is embedded and fixed in the temporary filling hole 13 corresponding to a desirable occlusal relationship. can Through this, the accuracy of occlusion between the temporary prosthesis 50 and the occlusion target part 2 can be remarkably improved.

At this time, the temporarily fixed resin injection hole 14 is formed through the side surface of the temporary prosthetic base 10 so as to communicate with the temporary filling hole 13 . Accordingly, a small amount of the curable resin (r) may be injected into the temporary filling hole 13 and cured in a state where the alignment type combination jig 20 is opened. Through this, the temporary cylinder 13 can be temporarily fixed to the correct position on the temporary prosthetic base 10, so that positional precision can be further improved.

Moreover, the upper and lower jaws can be simultaneously engaged and restrained in an accurate occlusion relationship through the alignment-type matching jig 20 . Therefore, a series of processes of fixing the temporary cylinder 30 to the temporary prosthetic base 10 can be continuously performed as soon as the upper and lower jaws are edentulous or the implant/abutment/temporary cylinder is placed/fixed in the oral cavity after tooth extraction. have. Through this, precision and speed when manufacturing the temporary prosthesis 50 can be remarkably improved.

In addition, the design information (m10) of the temporary prosthetic base and the design information (m20) of the aligned combination jig are the same image information set based on the scanning images of the upper and lower jaws virtually occluded corresponding to the vertical height (VD). generated simultaneously through Accordingly, the matching accuracy between the temporary prosthetic base 10 and the alignment-type joining jig 20 can be remarkably improved.

On the other hand, terms such as "comprise", "comprise", "have" or "have" described above mean that the corresponding component may be present unless otherwise stated, It should be construed as being able to further include other components rather than excluding components. All terms, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the present invention belongs, unless defined otherwise. Commonly used terms, such as terms defined in a dictionary, should be interpreted as consistent with the contextual meaning of the related art, and unless explicitly defined in the present invention, they are not interpreted in an ideal or excessively formal meaning.

As described above, the present invention is not limited to the above-described embodiments, and it is possible to modify and implement the present invention by those skilled in the art without departing from the scope claimed in the claims of the present invention. And, such modifications fall within the scope of the present invention.

10: temporary prosthetic base 13: temporary landfill hole
14: Temporarily fixed resin injection hole 20: Aligned combination jig
22: first mold hap groove 23: second mold hap groove
30: temporary cylinder 31: temporary coupling
50: Temporary prosthesis 100: Temporary prosthetic set for dental restoration

Claims (5)

A first scanning image displaying 3D surface information of the arch to be restored and a second scanning image displaying 3D surface information of the occlusion target are obtained by scanning the upper and lower jaws of a patient in which at least one of the upper and lower jaws is edentulous, respectively. a first step in which the first scanning image and the second scanning image are virtually occluded corresponding to a preset vertical height;
Design information of a temporary prosthetic base including a virtual tooth is generated in an occlusal space spaced apart between the 3D surface information of the arch to be restored and the 3D surface information of the occlusion target, and the virtual tooth and the second scanning image side are generated. A second step of generating design information of an alignment type mating jig in which virtual mating parts corresponding to each of the tooth end images are formed on upper and lower surfaces along an occlusion line where the tooth part information displayed on is overlapped with each tooth end image in which virtual occlusion is performed;
Based on the design information of the temporary prosthetic base and the design information of the alignment type combination jig, a real temporary prosthetic base and a real alignment type combination jig are manufactured, and a temporary cylinder coupled to the upper end of the implant pre-placed in the arch to be restored The temporary prosthetic base with the temporary filling hole to be inserted is disposed in the arch to be restored, and the occlusion target portion and each tooth of the temporary prosthetic base are molded into the matching groove formed in the alignment type joining jig, so that the occlusion position of the temporary prosthetic base is A third step of alignment constraints; and
Manufacture of a temporary prosthesis using a temporary prosthesis set for dental restoration including a fourth step of manufacturing a temporary prosthesis by fixing the temporary cylinder to the temporary prosthetic base whose occlusion position is aligned and constrained through the alignment-type joining jig through curable resin. Way. According to claim 1,
In the fourth step,
Temporarily fixing the temporary cylinder to the temporary filling hole by curing the pre-injected curable resin through a temporarily fixing resin injection hole formed on a side surface of the temporary prosthetic base so as to communicate with the temporary filling hole;
The method of manufacturing a temporary prosthesis using a temporary prosthesis set for dental restoration, comprising the step of completely fixing the temporary cylinder by filling and curing the curable resin into the temporary filling hole where the alignment-type combination jig is separated and exposed. . According to claim 1,
The second step is
Virtually arranging a virtual jig base whose cross-sectional area exceeds an overlapping area of the virtual jig base and each of the tooth end images of the tooth information along the occlusion line;
Setting an area where each of the tooth edge images overlap in the virtual jig base as an erase area;
The method of manufacturing a temporary prosthesis using a temporary prosthesis set for dental restoration, characterized in that it includes the step of erasing the erased area and setting the virtual mold matching portion corresponding to each of the tooth edge images on the upper and lower surfaces of the virtual jig base. Occlusal space formed by spacing the 3D surface information of the arch to be restored and the 3D surface information of the occlusion target part displayed in the scanning image obtained by scanning the upper and lower jaws of a patient whose at least one of the upper and lower jaws is edentulous, separated according to a preset vertical dimension. a temporary prosthetic base manufactured based on a virtual tooth part set in the virtual arch, and having a temporary filling hole formed corresponding to the implantation information of the implant to be placed in the arch to be restored;
a temporary cylinder having a temporary coupling portion into which an upper end of the implant is inserted and fixed, inserted into the temporary filling hole and fixed to the temporary prosthetic base through a curable resin; and
The temporary prosthetic base and the occlusion corresponding to each tooth edge image of the 3D surface information of the arch to be restored and the 3D surface information of the occlusion target so that the temporary prosthetic base and the occlusion target are aligned and occluded corresponding to the preset occlusion position. A temporary prosthetic set for dental restoration comprising an alignment-type combination jig formed on the upper and lower surfaces of the upper and lower surfaces of the matching grooves for matching each tooth edge of the target unit. According to claim 4,
The temporary prosthetic base communicates with the temporary filling hole and the curable resin is injected so that the temporary cylinder is temporarily fixed to the temporary filling hole in a state in which the temporary prosthetic base is occluded with the occlusion target portion through the occlusal alignment base. A temporary prosthetic set for dental restoration, characterized in that the temporary fixation resin injection hole is formed through the side.

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