KR102080243B1 - general purpose splint for measuring occlusal vertical dimention - Google Patents

Abstract

The present invention relates to a universal splint, which is disposed between an implant object unit and a matching object unit, and is formed in an arch shape corresponding to a predetermined standard dental arch profile in order to improve precision of dental implant implantation by accurately obtaining an image for an oral cavity of a subject. The universal splint of the present invention comprises: an installation groove unit having a margin unit exceeding the width of a standard gum unit corresponding to an implantation object unit on an inner surface portion thereof, and applied with a curable resin pressed and corrected to be engaged with an outer surface profile of the implantation object unit corresponding to an engagement pressure; and an abutment surface unit formed to correspond to a matching object unit on an outer surface portion thereof, and stacked with an engagement base corrected in the thickness corresponding to a vertical dimension calculated in accordance with working sensitivity of a subject at the outside.

Description

General purpose splint for measuring occlusal vertical dimention

The present invention relates to a vertical diameter measuring universal splint, and more particularly to a vertical diameter measuring universal splint to accurately acquire the image of the mouth of the subject to improve the precision of the dental implant placement.

In general, the implant means a substitute that can replace the human tissue when the original human tissue is lost, but in the dentist it means to implant artificial teeth. That is, to replace the lost tooth root, a fixture made of titanium or the like which does not have a rejection reaction on the human body is placed in the alveolar bone where the tooth falls out, and then the artificial crown is fixed to restore the function of the tooth. It is.

Such implants can prevent damage to the remaining teeth in the target arch, which require antagonism or implant placement, and can be used stably because there are no secondary decay factors. In addition, since the implant has substantially the same structure as natural teeth, there is no pain and foreign body feeling of the gums, there is an advantage that can be used semi-permanently if you manage well.

On the other hand, implant placement includes a process of forming an implantation hole in the target alveolar bone using a drill, and implanting a fixture in the implantation hole. The process of forming the implantation hole and implanting the fixture is performed for each patient. It is different. This is because the position, depth and direction of the implantation should be determined in consideration of various factors such as the position of the patient's teeth and alveolar bone or the position of implantation of the oral cavity.

As such, the drill work for forming the implantation hole in the alveolar bone has a difficulty in accurately measuring the depth and direction of the implantation in the course of work for beginners as well as experienced people. Moreover, it is very difficult for beginners to measure the insertion depth of a drill during drilling without a separate measuring step.

In addition, when the implantation hole is formed in the alveolar bone, it was difficult for the operator to apply the force to the drill to determine the depth to which the present progressed. Moreover, when a drill is inserted more than a certain depth, serious problems occur that damage the maxillary sinus membrane or the lower alveolar nerve.

On the other hand, when the drilling operation is finished before reaching a certain depth, the formed hole is shallow in depth, and excessive force is required to fix the fixture. Due to this, the thread around the insertion hole may be damaged or the alveolar bone may be fractured, and the fixture may not be completely fixed, thereby causing a problem of re-installation later.

Accordingly, an auxiliary mechanism called a surgical guide is used so that the drilling operation proceeds in correspondence with the exact placement position and direction.

1 is a flowchart illustrating a conventional method of manufacturing a surgical guide.

As shown in Figure 1, the conventional surgical guide is manufactured through the following process.

First, a 3D image of the oral cavity of a patient is obtained through CT imaging, and a 3D external shape image of the oral cavity is obtained through oral scan (s1).

Here, the three-dimensional image includes not only the crown exposed to the outside of the gum but also the three-dimensional shape of the root and alveolar bone combined with the internal tissue information on the bone density of the crown, root, and alveolar bone. In addition, the three-dimensional external shape image includes three-dimensional surface information about the outer shape of the crown and gum.

Then, when each image is obtained, the two images are matched based on a common part of the oral cavity that is set or automatically set by the operator, such as the singularity of the teeth (s2). Subsequently, an implant placement plan is established based on the image matching result (s3), and a surgical guide for guiding the implant placement is prepared according to the placement plan (s4).

At this time, the surgical guide should be manufactured to cover the arrangement relationship between the surrounding residual teeth and the antagonists together with various anatomical conditions such as the thickness of the gum, the distribution of the alveolar bone, the implant placement position, and the like. To this end, it is preferable to utilize the three-dimensional external shape image including the surface information and the three-dimensional image including internal tissue information.

Therefore, in order to compensate for the insufficient information in each image and to correct the distorted information, image matching of the two images (s2) is essentially required.

In detail, the three-dimensional external shape image is obtained by combining the scanned information along the mouth of the patient using the oral scanner. However, in the process of combining the scanned information, the three-dimensional external shape image appears to be distorted differently from the oral cavity. Therefore, it is necessary to correct the distorted orthodontic curvature in the three-dimensional external shape image based on the three-dimensional image obtained through CT imaging.

In addition, in order to prepare a fixture / abutment suitable for the target archery of the subject and to set the height of the crown, the three-dimensional image is obtained by CT imaging in the upper and lower jaw occlusion corresponding to the vertical height of the patient This is preferred.

However, when at least one of the upper and lower jaw most of the arch is missing or edentulous, there is a problem that the upper and lower jaw is difficult to space in response to the vertical diameter suitable for the patient.

Thus, some splints have been disclosed that are installed in the oral cavity to guide the patient's exact vertical height.

In detail, conventional splints are individually fabricated to fit into each patient's mouth. To this end, the impression of the patient's upper and lower jaw is taken from the operator side, such as a dentist, where the implant placement is actually performed, and the impression obtained from the manufacturer side, such as a dental laboratories, is transferred. Then, the manufacturer separately manufactures the splints to be matched to the target archery based on the impressions delivered to the operator side, and the operator installs the prepared splints in the oral cavity of the patient, but laminated the occlusal base on the outer surface and the vertical height Adjust the height in response.

Subsequently, the operator installs a height-adjusted splint in the oral cavity of the patient to acquire the three-dimensional image by occlusion, and transmits the acquired three-dimensional image to the manufacturer. The manufacturer establishes an implant placement plan and designs / manufactures a surgical guide by image matching the transmitted 3D image and the acquired 3D external shape image.

As such, the conventional implant placement further includes a process of individually manufacturing the splint in the placement planning process. At this time, since the impression model or image transmission / transmission process obtained for each patient is cumbersome and takes a long time when manufacturing the conventional splint, the overall duration and cost of implant placement were increased.

In addition, at least two visits of the patient are included, such as an impression acquisition step for designing the splint and a step of acquiring each image using the manufactured splint. Due to this, there is a problem that the discomfort of the patient is aggravated and the overall duration of dental implant placement increases.

In addition, as the impression model or image transmission / transmission process acquired according to the patient is repeated, the probability of error is increased, and the precision of the individually manufactured splints is deteriorated, so that there is a problem in that the oral cavity of each patient is not substantially conformed. . As a result, the overall accuracy of the implant placement plan is lowered, the pain or foreign body during the occlusion and chewing is increased due to the incorrectly placed implants to increase the discomfort of the patient.

Korea Patent Registration No. 10-1124676

In order to solve the above problems, the present invention is to provide a vertical diameter measuring universal splint to accurately acquire the image of the mouth of the subject to improve the precision of the dental implant placement.

In order to solve the above problems, the present invention is disposed between the implantation target portion and the antagonistic target portion and is standardized in consideration of age and sex anatomical deviation standardized to have a predetermined size corresponding to a predetermined standard arch arch profile In the general-purpose splint formed of the present invention, a curable resin coated with an inner surface portion having a margin exceeding the width of the standard gum portion corresponding to the implantation target portion and press-corrected to conform to the outer surface profile of the implantation target portion in response to the occlusal pressure Installation groove portion; And an occlusal surface portion having an occlusal base formed on an outer surface thereof to correspond to the clamshell and having an occlusal base that is corrected to a thickness corresponding to a vertical diameter calculated according to the chew sensitivity of the subject, wherein the installation groove portion and the occlusal surface are laminated. Is formed integrally, the thickness between the installation groove and the occlusal surface portion is formed smaller than the average vertical diameter calculated in consideration of age and sex anatomical deviation, the occlusal base is the end portion of the object to be joined by the occlusal pressure It is provided with a solid wax that supports a predetermined force in a state in which the thickness is adjusted based on the depth of mastication that is formed by pressing deformation to correspond to and a plurality of corresponding to the predetermined incision line to adjust the size of the general-purpose splint Incision edges are formed spaced apart at predetermined intervals along the occlusal surface portion, a plurality of said sections The edge is formed as a groove recessed to a predetermined depth across the entire width of the occlusal surface portion, one side of the occlusal base is partially inserted into the groove of the incision edge is fixed, the installation groove portion and the curable resin A plurality of fixing projections protrude so as to increase the contact area of the, wherein the fixing projections are formed to extend outward toward the end, the universal splint, the curable resin and the occlusal base is characterized in that the vertically formed Provides general purpose splints for measuring diameter.

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

First, in contrast to the conventional manufacturing method of the splint for guiding the vertical diameter when obtaining each image for the dental implant placement plan, the manufacturing time and cost were increased by customizing the implant according to the operator. The implantation period and cost of dental implants are significantly reduced and economical.

Second, the general-purpose splints are mass-produced in large / medium / small size corresponding to the mean values representing age and sex archery size, and the profiles and vertical diameters of the inner and outer surfaces are considered in response to the occlusal pressure to be individually matched to each subject. Since it is easily corrected by the thickness, the reliability of each image obtained using the same can be significantly improved.

Third, as the incision edges spaced at predetermined intervals in the outer surface of the general-purpose splints are formed recessed in a predetermined width, even when the oral cavity is narrow or natural / restorative teeth remain, it can be used by cutting / dividing and improving usability. At the same time, the contact area with the occlusal base which is stacked to be cut-corrected in response to the vertical diameter is increased, thereby preventing the cutting-off or the acquisition of each image from being separated from each other or changed in position.

Fourth, as the plurality of fixing projections protrude into the inner surface of the general-purpose splint, the contact area with the curable resin applied to be pressure-corrected corresponding to the outer surface profile of the implantation target increases, thereby maintaining a firmly fixed state. The overall thin thickness of the universal splint can be compensated for to prevent torsion or breakage / fracture caused by the bite pressure.

1 is a flow chart showing a conventional surgical guide manufacturing method.
Figure 2 is an exemplary view as viewed from the outer surface side of the vertical diameter measuring universal splint according to an embodiment of the present invention.
Figure 3 is an exemplary view as viewed from the side of the vertical diameter measuring universal splint in accordance with an embodiment of the present invention.
Figure 4 is an exemplary view showing a state in which the vertical diameter measuring universal splint installed in accordance with an embodiment of the present invention.
5 is an enlarged cross-sectional view of a portion A of FIG.
Figure 6 is an exemplary view showing a state used to adjust the length of the vertical diameter measuring universal splint according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the vertical diameter measuring universal splint in accordance with a preferred embodiment of the present invention.

On the other hand, the present invention can be applied to partial or maxillary jaw or difficult to calculate the vertical vertical diameter (VD) due to the amount of natural teeth loss of at least one of the maxilla and mandible. In particular, in the present embodiment, it will be described and illustrated as an example applied to the case where the maxillary side including the hard palate, which is harder than gum, which is soft tissue in the oral cavity, and is represented by a clear structure.

In addition, the implantation target part in the present invention encompasses an impression model prepared in correspondence with the maxillary or maxilla of the oral cavity, and the opposing object part is understood to include an impression model prepared in response to the mandible or mandible of the oral cavity.

In addition, in the present invention, the tooth implant implant or implant is understood to encompass an artificial tooth portion replacing the crown and an abutment mediating between the fixture and the artificial tooth portion together with the fixture replacing the root. desirable.

In addition, the operator in the present invention means a patient in need of dental implant placement, the operator side and the operator means a dental and medical personnel performing the dental implant, etc., the manufacturer side and the manufacturer is used for the dental implant placement It is desirable to understand the laboratories and laboratories that manufacture / supply implants and tools.

2 is an exemplary view of the vertical diameter measuring universal splint according to an embodiment of the present invention from the outer surface side, and FIG. 3 is an exemplary view of the vertical diameter measuring general purpose splint viewed from the lingual side. And, Figure 4 is an exemplary view showing a state where the vertical diameter measuring universal splint installed in accordance with an embodiment of the present invention, the occlusal, Figure 5 is an enlarged cross-sectional view of the portion A of FIG. And, Figure 6 is an exemplary view showing a state used by adjusting the length of the vertical diameter measuring universal splint according to an embodiment of the present invention.

2 to 6, the vertical diameter measuring universal splint 10 according to an embodiment of the present invention is preferably provided including an installation groove 11 and the occlusal surface (12).

Here, the general-purpose splint 10 is used to guide the vertical diameter that is calculated to be optimized for the operator when matching a plurality of scanning images and CT images obtained to establish a dental implant placement plan.

In detail, the general-purpose splint 10 is disposed between the implantation target portion 2 and the opposing target portion 3, and is formed in an arc shape corresponding to a predetermined standard arch profile. In this case, it is preferable that the standard arch form profile is understood as an arcuate region surface having a predetermined area corresponding to the gap between the outer side and the inner side of the gum part g, which is a portion where the tooth is actually arranged in the placement target part 2. Do. Here, the outer side of the gum portion g is a portion corresponding to the labial and buccal, and the inner side of the gum portion g is preferably understood to be a portion corresponding to the lingual.

The standard arch arch profile is preferably calculated by considering the age and sex anatomical deviation.

In detail, the standard dental arch profile is preferably divided in stages in correspondence to an average value that can represent age and sex archery size. Through this, the general-purpose splint 10 may be divided into a prefabricated to have a predetermined size, for example, may be provided as a ready-made standard of large / medium / small.

Therefore, unlike the conventional manufacturing cost and manufacturing period increased by customizing the splint for guiding the vertical diameter according to each subject, the overall cost of dental implant placement is reduced by using the general-purpose splint (10) prepared as a ready-made product In addition, the time required for manufacture and implant placement of the tooth can be significantly shortened.

In addition, failure factors in the process of individually designing and manufacturing the splint according to each subject are substantially eliminated. Therefore, since the design error due to the inaccurate information is calculated in each image acquisition step, which is an initial stage of the dental implant placement plan, the precision can be significantly improved.

Furthermore, the general-purpose splint 10 is prepared as a ready-made product, and is mass-produced to a standard that can be universally applied to the mouth of a variety of subjects or an impression model corresponding thereto. Therefore, it can be corrected to correspond to the vertical height of the subject by applying immediately upon the visit of the subject in the state in which the general-purpose splint 10 is provided in advance on the operator side.

Through this, the number of visits by the subject in the preparation step of obtaining information about the implantation target portion 2 and the opposing target portion 3 prior to implantation of the dental implant can be substantially minimized to one time. In addition, as soon as the general-purpose splint 10 is corrected and prepared for each subject, a plurality of the scanning images and the CT images may be acquired. In addition, since a plurality of scanning images and a time point for acquiring the CT images are substantially the same, the matching degree of each image may be significantly improved.

In addition, the general-purpose splint 10 is provided corresponding to the standard dental arch profile, it is preferable that the center portion is opened to the lingual side, the inside is formed as an open space. Therefore, when the general-purpose splint 10 is installed on the maxillary side, the gum part g is covered by the general-purpose splint 10 while the oral opening is exposed to the open space side. Accordingly, the three-dimensional surface of the palate can be used as an overlapping reference point between the images when the entire outer surface of the implantation target portion 2 with the universal splint 10 is installed using an oral scanner, the structure is hard and can be used as an overlap reference point between the images. Information is obtained.

In detail, when establishing a dental implant placement plan, a plurality of scanning images of the placement target portion and the clamulation target portion before and after installation of the general-purpose splint 10 are obtained. Then, a CT image of the occlusal mouth obtained through the general-purpose splint is obtained.

In this case, the plurality of scanning images preferably include a first scanning image of the entire outer surface of the implantation target portion in which the general-purpose splint is installed. And, it preferably comprises a second scanning image of the outer surface of the clam object. In addition, it is preferable to include a third scanning image of the outer surface of the implantation target portion and the antagonist portion occluded through the general-purpose splint. In addition, it is preferable to include a fourth scanning image of the entire outer surface of the implantation target portion from which the general-purpose splint is removed.

Here, the first scanning image is provided with the general-purpose splint in the implantation target portion to substantially cover the gum part, and the oral opening side is exposed to the open space side. Accordingly, the first scanning image and the second scanning image are overlapped with each other based on the third scanning image so that the scanning images corresponding to the upper and lower jaws are aligned according to the vertical diameter, and the first scanning image and the fourth scanning image are arranged. The first scanning image is replaced with the fourth scanning image based on the three-dimensional surface information of the palate which is commonly displayed in the image. Through this, an integrated scanning image may be generated in which the three-dimensional surface information of the edentulous jaw and its clam arch is aligned to correspond to the vertical diameter without a means for a separate matching criterion.

In addition, a CT image obtained by using a computed tomography image of the mouth of the occlusion occupied by the general-purpose splint 10 corrected to form the pressure corrector 10a and the stacked correction unit 10b is obtained. .

The CT image thus obtained may be generated as a 3D planing image that is overlapped and registered based on a common part with the integrated scanning image to establish a dental implant placement plan.

That is, the present invention obtains a plurality of the scanning images including three-dimensional surface information of the oral cavity of the subject and the CT images including internal tissue information by using the general-purpose splints corrected in consideration of the vertical height. Therefore, each data displayed in the CT image and the integrated scanning image may include substantially the same vertical height value. Through this, the first planning data with minimum error in acquiring the integrated scanning image and the CT image can be obtained, and the accuracy of information can be remarkably improved while the matching between the images is easy and the matching process is simplified.

On the other hand, the general-purpose splint 10 is ready to be standardized in ready-made products, it is preferable to be selected and used as a product of a size suitable for the subject. Here, the installation groove 11 is provided in the inner surface portion corresponding to / facing the implantation target portion 2, and the occlusal surface portion 12 is provided in the outer surface portion corresponding to / facing the clamulation target portion 3 Is preferred.

At this time, the general-purpose splint 10 is preferably formed smaller than the average vertical diameter calculated in consideration of the age and sex anatomical deviation between the installation groove 11 and the occlusal surface portion 12. Accordingly, the clearance may be formed on the inner and outer surfaces of the general-purpose splint 10 by applying the curable resin (r) and the occlusal base (w) to be corrected by the occlusal pressure.

In detail, the installation groove 11 is provided on the inner surface of the general-purpose splint 10, it is preferable to have a margin 11a that exceeds the width of the standard gum portion corresponding to the implantation target portion (2). . In addition, it is preferable that a curable resin (r) pressurized and corrected is applied to the inner surface of the installation groove part 11 so as to conform to the outer surface profile of the implantation target part 2 in response to the occlusal pressure.

Here, the width of the standard gum portion is preferably understood as a standardized transverse spacing between the outside and the inside of the gum portion (g) calculated in consideration of age and sex anatomical deviation. That is, the width of the standard gum portion is preferably understood as a standardized transverse spacing between the labyrinth / buccal and lingual sides of the gum part g calculated in consideration of age and sex anatomical deviation. Moreover, it is preferable to understand that the width of the standard gum portion substantially corresponds to the standard dental arch profile.

In addition, the clearance portion 11a is preferably formed to have an area extending in the lateral direction than the width of the standard gum portion. Accordingly, the curable resin (r) to be applied to the mounting groove 11 surrounds the entire outer surface of the implantation target side gum part (g) while the outer profile is the outer profile of the implantation target side gum part (g). It may be pressed to correct accordingly. Through this, even if the general-purpose splint 10 is repeatedly coupled to or separated from the implantation target unit 2, the area corresponding to each other increases, so that the universal splint 10 may be installed at an accurate position.

In this case, the curable resin (r) may be provided as putty, alginate or resin, which is commonly used when taking impressions at the dentist. The curable resin (r) is preferably formed with a viscosity that does not excessively press the soft tissue of the gum part (g), the groove to be joined to the implantation target side gum part (g) may be formed in an intaglio.

Here, the inner surface 11b of the installation groove 11 is preferably formed with a curvature larger than the convex outer profile of the average gum portion of the implantation target portion. Through this, the curable resin (r) is applied between the gum part (g) and the inner surface (11b) of the installation groove 11 can be formed a sufficient space to be pressure-corrected.

Furthermore, the inner surface 11b of the installation groove 11 including the clearance 11a is preferably formed in a gently concave profile. Therefore, the interval between the top end side of the implantation target side gum part g and the inner surface 11b of the installation groove 11 and the inner and outer sides of the implantation target side gum part g and the inner surface of the installation groove 11 The interval between 11b can be set similarly. In addition, it is possible to prevent the curable resin (r) coated on the inner surface (11b) of the mounting groove 11 is pushed outwards excessively by the pressing force. Through this, since the occlusal pressure is uniformly transmitted to the entire outer surface of the gum part g, the curable resin r may be clearly pressure-corrected corresponding to the outer surface profile of the gum part g.

On the other hand, the occlusal surface portion 12 is preferably formed to correspond to the antagonist portion 3 in the outer surface portion of the general-purpose splint (10). At this time, the occlusal surface portion 12 is preferably laminated to the occlusal base (w) to be corrected to a thickness corresponding to the vertical diameter of the subject. Here, the occlusal base (w) is preferably provided with a solid wax that is easy to cut based on the depth of mastication that is formed to correspond to the end of the clam part 3 by the occlusal pressure.

In detail, the universal splint 10 in which the curable resin r is applied to the installation groove 11 and the occlusal base w is laminated on the occlusal surface portion 12 is placed in the implantation target portion 2 and the It is arrange | positioned between the colliding object parts 3. Then, the occlusal pressure is applied to correspond to the vertical height optimized for the subject.

At this time, when the general-purpose splint 10 is directly installed and occluded in the mouth of the subject, the occlusal pressure is applied according to the chewing sensitivity of the subject. Here, the chewing sensitivity may be determined through direct expression of the subject, and may be determined by measuring electrical and chemical signals around the jaw joint and the jaw muscle.

Alternatively, when the implantation target portion 2 and the clamulation target portion 3 are provided as an impression model, the universal splint 10 may be disposed between the impression models connected upward and downward through an articulator. In addition, the occlusal pressure may be applied to the general-purpose splint 10 while arranging the impression model so as to correspond to the vertical height calculated statistically using the articulator.

At this time, when the curable resin (r) applied to the installation groove 11 is pressed by the occlusal pressure, the pressure correction part (10a) corresponding to the outer surface profile of the gum part (g) of the implantation target portion (2) It is formed as. Here, a separate dental resin may be further applied to the inner surface of the pressure correcting portion 10a so that the pressure correcting portion 10a is more precisely formed, and may be relined.

Then, by the bite pressure, the bite is formed by pressing on the outer surface of the bite base (w) to the end of the bite value (t) of the mating target portion (3). The outer surface of the occlusal base w is cut-corrected in correspondence to the mastication depth, and is formed as the stacked type correcting unit 10b.

In addition, the occlusal base (w) may be provided with a thermoplastic resin material which is fixed in shape after being hardened under pressure by the occlusal pressure in a softened state by heating at a temperature higher than a predetermined temperature. That is, the occlusal base (w) is harmless to the human body to be applicable to the oral cavity, and can be provided with a variety of known materials that can support a predetermined force in a state in which the thickness is adjusted while the thickness is adjusted by the occlusal pressure. have.

Here, the occlusal base w may be provided in a state of being laminated to an outer surface portion of the general-purpose splint 10. Alternatively, the occlusal base w and the universal splint 10 may be provided separately, but before the occlusal base w is installed between the implantation target portion 2 and the antagonism portion 3, the occlusal base w is the universal splint. It may be laminated to the outer surface portion of (10).

In addition, the curable resin (r) is preferably applied before being installed between the implantation target portion 2 and the clamulation target portion 3 in consideration of curing time and the like.

Meanwhile, the general-purpose splint 10 in which the pressure correcting unit 10a and the stacked type correcting unit 10b are formed and corrected is disposed between the implantation target unit 2 and the opposing target unit 3. Then, the pressure correcting portion 10a and the gum portion g of the placement target portion 2 correspond to each other, and the stacked correction portion 10b and the end portions of the clamulation portion 3 correspond to each other. Occlusal.

As described above, the present invention is prepared as a ready-made product, but by the simple method of occlusal through the general-purpose splint 10 corrected to match each subject, the implantation target portion 2 and the opposing target portion 3 correspond to the vertical height. Can be arranged accurately.

Therefore, a plurality of scanning images obtained with respect to the implantation target portion 2 and the antagonist portion 3 before and after the universal splint 10 is installed, and in the oral cavity with which the universal splint 10 is occluded. The reliability of the information included in the CT images obtained for the above can be significantly improved. In addition, the overall precision and accuracy of the three-dimensional planning image obtained by superimposing and matching such images and the dental implant placement plan established based thereon may be significantly improved.

On the other hand, the occlusal surface portion 12 is preferably formed with a plurality of cutting edges 14 are spaced apart at predetermined intervals corresponding to the predetermined cutting line (e).

In detail, the incision line e may be radially set along the outer surface of the occlusal surface portion 12 that is formed in an arc shape, and the spaced intervals of the incision line e are set in correspondence with the standardized tooth placement interval. Can be.

In addition, the cutting edges 14 may be formed to correspond to the plurality of cutting lines e. Here, the cutting edge 14 is preferably formed to have a predetermined depth across the entire width of the occlusal surface portion 12.

Through this, since the portion where the cutting edge 14 is formed is formed to a thickness thinner than other portions, it can be easily cut using a dental scissors or knife. Alternatively, when the operator grasps both sides of the incision edge of the position to be cut by hand and applies force, the incision edge can be easily divided and partially used as a boundary by the lever principle. At this time, since the cutting edge portion 14 is thin and is formed across the entire width of the occlusal surface portion 12, the cutting edge 14 can be easily cut / divided even with minimal force, thereby improving usability. Here, it is preferable that the portion indicated by the dotted line in FIG. 6 and denoted by 10c represents a portion in which the general-purpose splint 10 is cut / divided with respect to the cutting edge 14.

Furthermore, the actual spline size of the subject and the universal splint 10 through the incision edge 14 in the state where the general-purpose splint 10 is disposed between the implantation target portion 2 and the opposing target portion 3. The part to be cut / divided can be visually determined easily. Therefore, it does not need a separate means for marking the part to be cut / divided, and can be cut / divided quickly and immediately, so that the ease of use can be significantly improved.

Therefore, in the present invention, since the general-purpose splint 10 for guiding the vertical diameter is standardized to a predetermined size and can be mass-produced, economical efficiency and productivity through reduction in production cost can be significantly improved. In addition, as the cutting edge 14 is formed, it can be cut / divided into more subdivided sizes to correspond to the oral environment of each subject, so that ease of use and usability can be significantly improved.

At this time, as the plurality of cutting edges 14 are formed as grooves recessed toward the installation groove portion 11, the outer surface of the occlusal surface portion 12 is formed in a substantially uneven shape. Therefore, an area in which the occlusal base w stacked on the occlusal surface part 12 is increased and one surface side of the occlusal base w is partially inserted may be firmly coupled.

Accordingly, in the state where the occlusal base w is stacked on the universal splint 10, cutting correction is performed, or when the occlusal base w is acquired when each image is acquired through the universal splint 10, the occlusal surface part 12 ) Or to prevent repositioning. Through this, the general-purpose splint 10 can be used to obtain an image accurately reflecting the vertical height suitable for the operator, and the dental implant placement plan can be precisely established.

That is, the present invention has a multi-function that the cutting edge 14 is used as a cutting / dividing means to adjust the size of the general-purpose splint 10, while fixing the occlusal base w is coupled. Since the cutting edge 14 is simply formed in a recessed structure, it is easy to design and manufacture, thereby significantly improving productivity.

On the other hand, it is preferable that a plurality of fixing projections 13 are formed in the installation groove 11 so as to increase the contact area with the curable resin r. Herein, the fixing protrusion 13 may further include an extended end 13a having a cross-sectional area extending outward toward the protruding end.

In detail, the curable resin r is coated on the inner surface of the installation groove 11, and is disposed between the implantation target portion 2 and the clamulation target portion 3. In addition, when the occlusal pressure is applied to the occupant to correspond to a vertical height suitable for the subject, the space corresponding to the interval between the inner surface 11b of the installation groove 11 and the outer surface of the gum part g of the implantation target portion 2 is applied. Curable resin (r) flows. At this time, the curable resin (r) is pressed according to the distance between the outer surface of the implantation target portion (2) and the inner surface of the installation groove portion 11 is pushed out or filled in the void portion while the outer surface profile of the implantation target portion (2) Is corrected to correspond to the matching.

Then, when the curable resin (r) is cured, it is locked between the inner surface of the installation groove 11 and the extended end 13a of the plurality of fixing projections (13). Accordingly, even if the universal splint 10 is repeatedly occluded or separated between the implantation target portion 2 and the antagonist portion 3 in order to obtain a plurality of the scanning image and the CT image, the pressure correcting portion 10a can be fixed at the correct position.

Through this, the position and shape of a specific portion (eg, a specific surface of a antagonist, a specific surface of a universal splint, a registration marker, etc.) respectively displayed on three-dimensional surface information displayed on a plurality of the scanning images may be identically obtained. Can be. In addition, the reliability of the vertical diameter value obtained through the general-purpose splint 10 can be significantly improved.

In addition, when the universal splint 10 is installed and engaged between the placement target portion 2 and the antagonism portion 3 through the fixing protrusion 13, the occlusal pressure may be supported. That is, the general-purpose splint 10 may be manufactured in a thin thickness, thereby making it easy to cut and divide and reduce the manufacturing cost, and prevent the general-purpose splint 10 from being twisted or broken by the occlusal pressure. Thus, it is economical by preventing the general purpose splint 10 from being discarded unnecessarily, and the accuracy of each image obtained can be further improved.

Here, in the drawing, the extended end portion 13a is shown as a structure that gradually expands toward the protruding end side of the fixing protrusion 13, but the extended end portion 13a is discontinuously stepped from the fixing protrusion 13 It may also be formed. Or, it may be formed in the shape of a protrusion protruding outward along the side of the fixing projection 13, this modification is within the scope of the present invention.

In addition, the general-purpose splint 10 includes the clearance portion 11a, and the occlusal surface portion 12 on which the installation groove portion 11 and the cut edge 14 protrudes from the fixing protrusion 13 is formed. It is preferred to understand that it is substantially integrally formed. That is, the inner surface side of the general-purpose splint 10 is set as the installation groove 11 and the outer surface side is set as the occlusal surface 12.

On the other hand, the general-purpose splint 10, the curable resin (r), and the occlusal base (w) to be applied to the present invention is preferably provided with a radiation transmitting material. Herein, the radiation-permeable material may include various materials known in the art as long as they are thermosetting / photocurable synthetic resin, thermoplastic synthetic resin, or curable resin that can be used in the dentistry while being harmless to the human body. In this case, each configuration preferably has a density of less than 2.0 g / cm 3 through which radiation is transmitted so as not to be displayed on the CT image.

Accordingly, the CT image obtained by capturing in the state where the general-purpose splint 10 is installed and occluded is displayed as image data of the upper and lower alveolar bones and the remaining teeth in consideration of vertical height. At this time, the general-purpose splint 10, the curable resin (r) and the occlusal base (w) are transmitted through radiation and are not substantially displayed on the CT image. Therefore, since the shape of the implantation target side alveolar bone and the opposing target side opposing teeth is clearly displayed, the shape of the artificial tooth portion designed based on this and the specification of the fixture / abutment implanted in the alveolar bone can be precisely set. have.

Through this, the vertical diameter measurement universal splint 10 according to the present invention, the manufacturing period and cost was increased by customizing the splints for guiding the vertical diameter when acquiring each image for establishing a dental implant placement plan according to the operator Unlike the related art, by providing a ready-made product, the overall dental implant placement period and cost are significantly reduced and economical.

In addition, the general-purpose splint 10 is standardized in large, medium and small in accordance with the average value representing the age-specific and gender uterus size, can be mass-produced, the outer profile and the vertical diameter can be corrected to the thickness in consideration of the occlusal pressure The curable resin (r) and the occlusal base (w) are provided in the inner and outer surface portions, respectively, and are easily corrected to be individually matched to each subject. Thus, the precision and accuracy of each image obtained using the general purpose sprint 10 can be significantly improved.

In this case, the cutting edges 14 spaced apart at predetermined intervals are formed on the outer surface of the general-purpose splint 10. Accordingly, even when the oral cavity is narrow or natural / restorative teeth remain, it can be used by cutting / dividing, thereby improving usability. At the same time, since the cutting edge 14 is recessed to a predetermined width to increase the contact area with the occlusal base w, the cutting edge 14 may be prevented from being separated from each other or changed in position in the process of cutting correction or acquisition of each image.

In addition, a plurality of fixing protrusions 13 protrude from the inner surface of the general-purpose splint 10. Accordingly, the contact area with the curable resin (r) is increased to maintain a firmly fixed state. At the same time, the thickness of the general-purpose splint 10, which is thinly formed as a whole, may be supplemented to prevent twisting or damage / fracture of the product itself due to the occlusal pressure.

In this case, the terms "comprise", "comprise", "comprise" or "have" described above mean that the corresponding component may be included unless otherwise stated, and thus, other It should be construed that it may include other components rather than to exclude the components. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. Terms commonly used, such as terms defined in a dictionary, should be interpreted to coincide with the contextual meaning of the related art, and shall not be interpreted in an ideal or excessively formal sense unless explicitly defined in the present invention.

As described above, the present invention is not limited to the above-described embodiments, but may be modified and implemented by those skilled in the art without departing from the scope of the claims of the present invention. Such variations are within the scope of the present invention.

10: Vertical height measuring universal splint 11: Mounting groove
12: occlusal surface portion 13: fixed protrusion
14: cutting edge r: curable resin
w: occlusal base VD: vertical diameter
e: incision line

Claims (5)

In the general-purpose splint which is disposed between the implantation target portion and the opposing portion and is standardized to have a predetermined size corresponding to a predetermined standard dental arch profile by considering age and gender anatomical deviation,
An installation groove having an allowable portion exceeding a width of a standard gum portion corresponding to the implantation target portion and having a curable resin pressurized and corrected to conform to an outer profile of the implantation target portion in response to an occlusal pressure; And
The occlusal surface portion is formed to correspond to the portion of the clam to the outer surface portion and the occlusal surface is laminated on the outer surface to be corrected to the thickness corresponding to the vertical height calculated according to the sensitivity of the subject,
The installation groove portion and the occlusal surface portion is integrally formed, the thickness between the installation groove portion and the occlusal surface portion is formed smaller than the average vertical diameter calculated in consideration of age and sex anatomical deviation,
The occlusal base is provided with a solid wax that supports a predetermined force in a state in which the thickness is adjusted based on the depth of mastication that is formed by pressure deformation to correspond to the end portion of the object to be joined by the occlusal pressure.
A plurality of incision edges corresponding to a predetermined incision line to be adjusted so that the size of the general-purpose splint is formed spaced apart at a predetermined interval along the occlusal surface portion, a plurality of the incision edges across the entire width of the occlusal surface portion Is formed into a groove recessed to a set depth, one side of the occlusal base is partially inserted into the groove of the incision edge is fixed,
The fixing groove is provided with a plurality of fixing protrusions to increase the contact area with the curable resin, the fixing protrusion is formed to extend outward toward the end,
And the universal splint, the curable resin, and the occlusal base are formed of a radiation transmitting material.
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