Digital intermaxillary relationship recording device for denture fabrication

Abstract

A digital intermaxillary relationship recording device for denture fabrication is disclosed, which completes the acquisition of intermaxillary relationships necessary for denture fabrication during the patient's first visit, determines the aesthetic position of the anterior teeth using a facial scanner, and allows for the accurate fabrication and provision of dentures on the same day or in two visits. One aspect of the present invention of the digital intermaxillary relationship recording device for denture fabrication includes a maxillary plate on which impression material is provided on the upper surface so as to be able to acquire an impression of the maxillary gums, a mandibular plate on which impression material is provided on the lower surface so as to be able to acquire an impression of the mandibular gums, and an anterior tooth guide member which can be detachably coupled to the anterior end of the maxillary plate, can acquire an index relationship with the lips after coupling, and can reproduce the aesthetic position of the anterior teeth via a facial scanner in the coupled state.

Description

Technical Field

[0001] The present invention relates to an interocclusal relation recording device for digital denture fabrication that can reduce the number of patient visits. More specifically, it completes the acquisition of the interocclusal relation necessary for denture fabrication at the patient's first visit, determines the aesthetic position of the anterior teeth using a facial scanner, and can fabricate and provide accurate dentures within one day or two visits. The present invention relates to an interocclusal relation recording device for digital denture fabrication.

Background Art

[0002] Generally, a denture is also called a replacement tooth and refers to an artificial insertion in the oral cavity that replaces missing natural teeth and artificially restores the outer shape and function.

[0003] When natural teeth are left missing, deformation of the facial shape due to dental arch distortion of adjacent teeth and opposing teeth of the missing teeth occurs, chewing function decreases, and inconvenience in daily life is aggravated. Furthermore, when the state of missing natural teeth persists for a long time, there is a problem that the alveolar bone surrounding the missing teeth is absorbed into the body, making it difficult to install artificial periodontal tissues.

[0004] Thus, the denture is provided to restore chewing function and prevent deformation of the periodontal tissues, but can be classified into partial / complete dentures according to the number of missing teeth, and can be classified into fixed and removable types according to the fixing method. At this time, the partial denture is provided using remaining tissues such as adjacent teeth, alveolar bone between adjacent teeth, and dental ridges in a partial edentulous area of the upper or lower jaw, and the complete denture can be provided so as to completely wrap the dental ridge in an overall edentulous area of the upper or lower jaw.

[0005] Here, the denture includes an artificial dental ridge part that wraps around and fixes the dental ridge of the target dental arch and an artificial tooth part that replaces the missing teeth, but can be individually manufactured corresponding to different tooth arrangements, shapes, and occlusal heights for each subject.

[0006] According to the prior art, denture fabrication is performed as follows.

[0007] On the first day of your visit, an impression will be taken for the creation of a preliminary model. Based on this information, the preliminary model and your personal plate will be fabricated at the dental laboratory.

[0008] On the second day of the visit, marginal shaping and final impressions are taken. Based on these, the dental laboratory prepares the working model and articulator.

[0009] On the third day of the patient's visit, facial arch repositioning and intermaxillary relationship recording and acquisition are performed. The intermaxillary relationship information measured at this time includes anterior tooth length determination, vertical occlusal height determination, horizontal intermaxillary relationship recording, and facial arch repositioning information. Based on this, the dental laboratory arranges the artificial teeth.

[0010] On the fourth day of the patient's visit, a wax denture try-in is performed. At this time, lip support, midline, and intermaxillary relationships are checked.

[0011] Finally, on the fifth day of your visit, the dentures will be fitted and adjusted.

[0012] However, with conventional technology, although it varied depending on the skill level of the practitioner and the dental laboratory, even with various impression-taking devices and digital systems in place, patients almost always had to visit the clinic for five days or more, which increased inconvenience and burden for the patient. [Overview of the project] [Problems that the invention aims to solve]

[0013] The present invention aims to solve the above-mentioned problems, and the objective of the present invention is to provide a digital intermaxillary relationship recording device for denture fabrication that can be applied to anterior jaw, unilateral jaw, or edentulous patients, and that can reduce the number of times the patient visits the clinic by applying the intermaxillary relationship recording device simultaneously with the patient's impression taking.

[0014] Another object of the present invention is to provide a digital intermaxillary relationship recording device for denture fabrication that can record the vertical occlusal height, mandibular rest position, occlusal plane, and anterior tooth cutting position, all at the time of the patient's first visit.

[0015] The problems addressed by the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0016] According to one aspect of the present invention, a digital intermaxillary relationship recording device for denture fabrication is provided, which includes: an upper plate on which impression material is provided on the upper surface so as to be able to take an impression of the upper gums; a lower plate on which impression material is provided on the lower surface so as to be able to take an impression of the lower gums; and an anterior tooth handle for obtaining the cutting position of the upper anterior teeth by adjusting the height so that the upper lip contacts one side of the anterior end of the upper plate.

[0017] In this case, the anterior tooth handle can be partially inserted into a coupling groove located at the front end of the maxillary plate, and then fixed after its height has been adjusted.

[0018] In this case, the anterior tooth handle may include an insertion portion that is inserted vertically and fixed into the coupling groove formed in the maxillary plate so as to be height adjustable; an extension portion that has one end fixed to the insertion portion and the other end extends horizontally and comes into contact with the upper lip during the procedure; and a handle portion that extends from the other end of the extension portion.

[0019] In this case, a horizontal bar for recording the occlusal plane may be assembled on one side of the maxillary plate so that it can be attached to, detached from, and rotated.

[0020] In this case, the front end of the upper jaw plate is provided with a handle that protrudes forward, and the handle may be provided with a spherical groove that can accommodate a rotating ball located in the center of the horizontal bar.

[0021] At this time, the handle of the maxillary plate can be disposed at a position lower than the main body of the maxillary plate.

[0022] At this time, the maxillary plate or the mandibular plate is composed of a planar semi-circular panel having a shape corresponding to the maxilla and the mandible, and partitions can be formed along the positions of the teeth so that the impression material can be provided and occlusion can be achieved.

[0023] At this time, the mandibular plate is formed in a panel shape, and a first incision can be formed behind the position where the molar teeth are located so that the impression material can be firmly inserted with a finger while avoiding interference with the gingiva during mandibular movement.

[0024] At this time, the mandibular plate can be formed with a second incision at the rear of the center to avoid interference with the tongue, push the tongue backward, and enable the patient to easily close at the centric relation.

[0025] At this time, the surface of the maxillary plate or the mandibular plate on which the impression material is provided may be provided with fitting grooves or protrusions so that they can be fitted at the same position during reassembly.

[0026] At this time, in order to record the vertical occlusion height between the maxillary plate and the mandibular plate, a vertical occlusion height recording screw that is screwed and fixed through one side of the mandibular plate can be further included.

[0027] According to another aspect of the present invention, there is provided a digital denture-making intermaxillary relation recording device including a maxillary plate having an impression material provided on an upper surface so as to acquire an impression of the maxillary gingiva, a mandibular plate having an impression material provided on a lower surface so as to acquire an impression of the mandibular gingiva, and a front tooth guide member that can be detachably coupled to a front end portion of the maxillary plate, can acquire an index relationship with the lip after coupling, and can reproduce an aesthetic position of the front teeth through a facial scanner in a coupled state.

[0028] At this time, the anterior tooth guide member can be formed in the shape of the maxillary six anterior teeth.

[0029] At this time, the anterior tooth guide member can be detachably provided at the front end portion of the maxillary plate so as to be height-adjustable in the vertical direction with respect to the maxillary plate.

[0030] At this time, a sliding insertion portion can be formed in the anterior tooth guide member slidably inserted into the maxillary plate, and a groove portion into which the insertion portion slides can be formed in the maxillary plate, or vice versa.

[0031] At this time, instead of the anterior tooth guide member, a bite plane recording device connecting member that can be detachably coupled to the front end portion of the maxillary plate and to which the bite plane recording device is fastened can be further included.

[0032] At this time, a spherical groove for accommodating the rotating ball of the bite plane recording device can be formed in the bite plane recording device connecting member.

[0033] At this time, holes or grooves into which an impression material can flow in and increase the bonding force can be formed in the maxillary plate or the mandibular plate.

[0034] At this time, the maxillary plate or the mandibular plate is composed of a planar semi-circular panel having a shape corresponding to the maxilla and the mandible, and partitions can be formed along the positions of the teeth so that the impression material can be provided and the plates can be joined together.

[0035] At this time, the mandibular plate is formed in a panel shape, and a first incision can be formed behind the position where the molar teeth are located so that the impression material can be firmly inserted with a finger while avoiding interference with the gums during mandibular movement.

[0036] At this time, a second incision can be formed in the mandibular plate behind the center to avoid interference with the tongue, push the tongue backward, and enable the patient to easily close in the centric relation.

[0037] In this case, the surface on which the impression material of the upper or lower jaw plate is provided may be provided with a splice or projection for splicing so that it can be spliced ​​into the same position when reassembled.

[0038] In this case, a vertical occlusal height recording screw may be further included, which penetrates one side of the mandibular plate and is screw-fixed to it, so as to record the vertical occlusal height between the maxillary plate and the mandibular plate. [Effects of the Invention]

[0039] According to the above configuration, the digital intermaxillary relationship recording device for denture fabrication according to the embodiment of the present invention can record the vertical occlusal height, mandibular rest position, occlusal plane, and anterior tooth cutting position on the first day of the patient's visit. Based on this, dentures can be fabricated and fitted and orthodontized immediately on the day of the visit or the second day, dramatically reducing the number of visits required by the patient.

[0040] The effects of the present invention are not limited to those described above, but should be understood to include all effects that can be inferred from the detailed description of the present invention or the configuration of the invention as described in the claims. [Brief explanation of the drawing]

[0041] [Figure 1] This is a perspective view from above of the maxillary plate, which is a component of the intermaxillary relationship recording device for digital denture fabrication according to the first embodiment of the present invention. [Figure 2] This is a perspective view from below of the maxillary plate, which is a component of the intermaxillary relationship recording device for digital denture fabrication according to the first embodiment of the present invention. [Figure 3] This is a plan view of the maxillary plate, which is a component of the intermaxillary relationship recording device for digital denture fabrication according to the first embodiment of the present invention. [Figure 4]This is a right side view of the maxillary plate, which is a component of the intermaxillary relationship recording device for digital denture fabrication according to the first embodiment of the present invention, with the anterior tooth handle attached. [Figure 5] This is a front view of the maxillary plate, which is a component of the intermaxillary relationship recording device for digital denture fabrication according to the first embodiment of the present invention. [Figure 6] This is a front view showing a state in which a horizontal bar for recording the occlusal plane is attached to the maxillary plate, which is a component of the intermaxillary relationship recording device for digital denture fabrication according to the first embodiment of the present invention. [Figure 7] This is a perspective view of a mandibular plate, which is a component of a digital intermaxillary relationship recording device for denture fabrication according to the first embodiment of the present invention. [Figure 8] This is a bottom view of a mandibular plate, which is a component of a digital intermaxillary relationship recording device for denture fabrication according to the first embodiment of the present invention. [Figure 9] This is a rear view of a mandibular plate, which is a component of a digital intermaxillary relationship recording device for denture fabrication according to the first embodiment of the present invention. [Figure 10] This is a perspective view of the anterior tooth handle, which is a component of the intermaxillary relationship recording device for digital denture fabrication according to the first embodiment of the present invention. [Figure 11] This is a perspective view from the upper side of the maxillary plate, which is a component of the intermaxillary relationship recording device for digital denture fabrication according to the second embodiment of the present invention. [Figure 12] This is a perspective view from the lower side of the mandibular plate, which is a component of the intermaxillary relationship recording device for digital denture fabrication according to the second embodiment of the present invention. [Figure 13] This is an exploded perspective view showing the connection between the maxillary plate and the anterior tooth guide member, which are some components of the intermaxillary relationship recording device for digital denture fabrication according to the second embodiment of the present invention. [Figure 14] This is a perspective view of an anterior tooth guide member, which is a component of a digital intermaxillary relationship recording device for denture fabrication according to a second embodiment of the present invention. [Figure 15]This is a front view of a digital intermaxillary relationship recording device for denture fabrication according to a second embodiment of the present invention, showing the state in which the anterior tooth guide member is assembled on the maxillary plate. [Figure 16] This is a perspective view of a mandibular plate, which is a component of a digital intermaxillary relationship recording device for denture fabrication according to a second embodiment of the present invention. [Figure 17] This is a plan view of a mandibular plate, which is a component of a digital intermaxillary relationship recording device for denture fabrication according to a second embodiment of the present invention. [Figure 18] (a) Front view and (b) Rear view of a digital intermaxillary relationship recording device for denture fabrication according to a second embodiment of the present invention, in which the vertical occlusal height is aligned with the maxillary plate using a screw. [Figure 19] This is an exploded perspective view showing the connection between the maxillary plate and the connecting member of the occlusal plane recording device in a digital intermaxillary relationship recording device for denture fabrication according to a second embodiment of the present invention. [Figure 20] This is a front view of a digital intermaxillary relationship recording device for denture fabrication according to a second embodiment of the present invention, in which an occlusal plane recording device is connected. [Figure 21] This is a perspective view showing a patient's oral cavity being scanned using a facial scanner, which is a component of a digital intermaxillary relationship recording device for denture fabrication according to a second embodiment of the present invention. [Modes for carrying out the invention]

[0042] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, so as to be easily implemented by a person skilled in the art to which the present invention pertains. The present invention may be realized in various different forms and is not limited to the embodiments described herein. For clarity in describing the present invention, parts not related to the description of the drawings have been omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

[0043] Words and terms used herein and in the claims should not be construed to be limited to their ordinary or dictionary meanings, but rather to be interpreted as meanings and concepts that are consistent with the technical idea of ​​the present invention, in accordance with the principle that inventors may define terms and concepts in order to best describe their invention.

[0044] Therefore, the embodiments described herein and the configurations shown in the drawings constitute a preferred embodiment of the present invention and do not represent the entire technical concept of the present invention; thus, there may be various equivalents and modifications that replace these configurations at the time of filing of the present invention.

[0045] In this specification, terms such as “includes” or “has” describe the presence of features, figures, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood not to preemptively exclude the possibility of the presence or addition of one or more other features, figures, steps, actions, components, parts, or combinations thereof.

[0046] Being "in front of," "behind," "above," or "below" another component includes, unless otherwise specified, not only being directly adjacent to another component in front of, behind, above, or below, but also cases where another component is positioned in between. Furthermore, being "connected" to another component includes, unless otherwise specified, not only being directly connected to each other, but also being indirectly connected to each other.

[0047] In the following, an embodiment of the digital intermaxillary relationship recording device for denture fabrication of the present invention will be described with reference to the drawings.

[0048] The intermaxillary relationship recording device for digital denture fabrication according to the first embodiment of the present invention may include, as shown in Figures 1 to 10, an upper jaw plate 10, a lower jaw plate 20, an anterior tooth handle 40, and a vertical occlusion height recording screw 60.

[0049] Referring to Figures 1 to 7, the upper jaw plate 10 may have impression material provided on its upper surface so that an impression of the maxillary gums can be taken.

[0050] In this case, the maxillary plate 10 consists of a flat, semicircular panel whose main body 11 is shaped to correspond to the maxilla, and partitions 11a and 11b can be formed along the positions of the teeth so that the impression material can be supplied and cemented to it. Therefore, by supplying the impression material to the impression material supply passage 12 between the partitions 11a and 11b and then having the patient bite down, an impression of the maxilla can be taken through this. The partitions 11a and 11b consist of an inner partition 11a and an outer partition 11b, and the impression material is supplied between them, and its position also corresponds to the position of the maxilla where the teeth are placed.

[0051] In this case, a horizontal bar 50 for recording the occlusal plane may be assembled on one side of the maxillary plate 10 so that it can be attached, detached, and rotated. That is, referring to Figure 6, the front end of the maxillary plate 10 is provided with a handle 13 that protrudes forward, and the handle 13 may be provided with a spherical groove 13a so as to accommodate a rotating ball 51 located in the center of the horizontal bar 50. Here, the spherical groove 13a is open at the top so that the rotating ball 51 can be tightened and detached, and a plurality of incisions are formed on the side.

[0052] In this case, the handle 13 of the upper jaw plate 10 may be positioned lower than the main body 11 of the upper jaw plate 10.

[0053] In this case, the surface of the maxillary plate 10 on which the impression material is provided may be provided with a lubrication groove 12a or projection so that it can be lubricated to the same position even when reassembled. When reassembled, the lubrication groove 12a or projection is aligned so that the position of the impression material and the maxillary plate 10 coincides. Here, such a lubrication groove 12a or projection may be formed as a protrusion or groove on the panel plane together with the opposite surface, or it may be formed independently of the opposite surface.

[0054] In this case, the maxillary plate 10 may be equipped with friction portions 14 consisting of multiple peaks and valleys to prevent it from slipping in the oral cavity. The friction portions 14 may be formed to protrude in a sawtooth shape in an outward direction parallel to the main body 11 panel of the maxillary plate 10. Such friction portions 14 help to fix the position of the maxillary plate 10 in the oral cavity without slipping.

[0055] Referring to Figures 7 to 9, the mandibular plate 20 may have impression material provided on its lower surface so that an impression of the mandibular gums can be taken.

[0056] In this case, the mandibular plate 20 consists of a flat, semicircular panel whose shape corresponds to the mandible, and partitions 21a and 21b may be formed along the positions of the teeth so that the impression material can be provided and cemented. Here, the partitions 21a and 21b consist of an inner partition 21a and an outer partition 21b, and the impression material is provided to the impression material supply passage 22 between the inner partition 21a and the outer partition 21b, and the patient bites down on this in the oral cavity to take an impression of the mandible.

[0057] In this case, the mandibular plate 20 is formed in a panel shape, and a first incision 20a may be formed posteriorly where the molars are located, so that the impression material can be hardened and inserted with the fingers while avoiding interference with the gums during mandibular movement. The reason for forming the first incision 20a in this way is that the part where the molars are located is formed to be higher than other parts. Therefore, by forming the first incision 20a, accurate impressions can be taken without interference during mandibular impression taking.

[0058] In this case, the mandibular plate 20 may have a second incision 20b formed in the posterior central part to avoid interference from the tongue, allowing the tongue to move to a posterior position and enabling the patient to easily close it in a centric relation.

[0059] In this case, the first and second incisions 20a and 20b can be formed in a planar arc shape.

[0060] In this case, the surface of the mandibular plate 20 to which the impression material is provided may be provided with a fitting groove 22a or projection so that it can be fitted to the same position even when reassembled. The reason for forming such a fitting groove 22a or projection is the same as that for forming it on the maxillary plate 10.

[0061] Referring to Figures 4 and 10, the height of the anterior tooth handle 40 can be adjusted so that the upper lip 1 contacts one side of the front end of the maxillary plate 10, thereby determining the cutting position of the maxillary anterior teeth.

[0062] At this time, the anterior tooth handle 40 is assembled to the maxillary plate 10 after the impression material has been provided to the maxillary plate 10. Therefore, the practitioner can use a knife to cut the impression material near the coupling groove 10a of the maxillary plate 10 to which the anterior tooth handle 40 is coupled.

[0063] At this time, the anterior tooth handle 40 can be partially inserted into the coupling groove 10a located at the front end of the maxillary plate 10, and then fixed after its height has been adjusted.

[0064] In this case, the front tooth handle 40 may include an insertion portion 41, an extension portion 42, and a handle portion 43.

[0065] At this time, the insertion portion 41 can be inserted vertically into the coupling groove 10a formed in the upper jaw plate 10 and fixed in place so as to be able to adjust its height. Here, the height of the anterior tooth handle 40 can be adjusted according to the depth to which the insertion portion 41 is inserted into the coupling groove 10a. Therefore, the practitioner can determine the height at which the upper lip 1 makes contact and adjust the height accurately.

[0066] The extension portion 42 has one end fixed to the insertion portion 41, and the other end extends horizontally so that it can come into contact with the upper lip 1 during the procedure. At this time, a clamping portion 44 can be formed between the extension portion 42 and the insertion portion 41, which is inserted into the incision groove 10b formed in the outer partition wall 11b of the maxillary plate 10. By attaching and detaching the clamping portion 44 and the insertion portion 41, the frictional force between the maxillary plate 10 and the anterior tooth handle 40 is increased, and the anterior tooth handle 40 can be fixed in place at an adjusted height without slipping.

[0067] The handle portion 43 may be provided extending from the other end of the extension portion 42. The handle portion 43 is formed in a shape in which the panel is vertically upright, so that it can be easily gripped with the thumb and index finger.

[0068] Referring to Figure 9, the vertical occlusal height recording screw 60 can be screwed through the nut hole 20c of the mandibular plate 20 so as to record the vertical occlusal height between the maxillary plate 10 and the mandibular plate 20. The vertical distance between the maxillary plate 10 and the mandibular plate 20 can be adjusted by the operator turning the vertical occlusal height recording screw 60.

[0069] At this time, the impression material provided before applying the vertical occlusion height recording screw 60 to the mandibular plate 20 can be removed with a knife so as not to interfere with it.

[0070] At this time, with the vertical occlusion height recording screw 60 fixed to the mandibular plate 20, a colored substance such as loose glue is applied to the part of the maxillary plate 10 that the vertical occlusion height recording screw 60 contacts, and by moving the upper and lower jaws back and forth and left and right, the intersection of the ends of the vertical occlusion height recording screw 60 drawn on the maxillary plate 10 can be recorded at the centric position of the mandible.

[0071] Referring to Figure 1, a perspective view from above of the maxillary plate 10, which is a component of the intermaxillary relationship recording device for digital denture fabrication according to the first embodiment of the present invention. Referring to Figure 2, a perspective view from below of the maxillary plate 10, which is a component of the intermaxillary relationship recording device for digital denture fabrication according to the first embodiment of the present invention. Referring to Figure 3, a plan view of the maxillary plate 10, which is a component of the intermaxillary relationship recording device for digital denture fabrication according to the first embodiment of the present invention. The maxillary plate 10 is formed in a panel shape, with a handle 13 protruding from the front. The handle 13 is formed in a panel shape parallel to the body 11 of the maxillary plate 10, and a spherical groove 13a is formed on the upper surface of the handle 13 into which a rotating ball 51 of a horizontal bar 50 for recording facial arch movement and occlusal plane is inserted. Such a horizontal bar 50 can be readily applied from a product sold by the actual applicant under the trademark ADD POP BOW. The main body 11 of the maxillary plate has an inner partition 11a and an outer partition 11b, between which the impression material is placed. At this time, a splicing groove 12a is formed on the bottom surface between the partitions 11a and 11b so that the impression material and the maxillary plate 10 can be aligned when reassembled. The outer surface of the main body 11 of the maxillary plate 10 is provided with a serrated friction part 14 to prevent it from sliding and moving after it has settled in the oral cavity. In addition, a coupling groove 10a is formed through the main body 11 for attaching the anterior tooth handle 40, and an incision groove 10b is formed by cutting the outer partition 11b and connecting to the coupling groove 10a.

[0072] Referring to Figure 4, a right side view is shown of the maxillary plate 10, which is a component of the intermaxillary relationship recording device for digital denture fabrication according to the first embodiment of the present invention, with the anterior tooth handle 40 attached. The insertion portion 41 of the anterior tooth handle 40 is inserted into the coupling groove 10a of the maxillary plate 10, and at the same time, the clamping portion 44 of the anterior tooth handle 40 is inserted into the incision groove 10b. When the practitioner adjusts its height, the anterior tooth handle 40 is coupled to and fixed to the maxillary plate 10. At this time, the upper lip 1 comes into contact with the extension portion 42 of the anterior tooth handle 40. At this time, the fact that the cutting of the maxillary anterior teeth is located 1 mm below the height of the edge of the upper lip 1 is communicated to the dental technician, and the anterior tooth handle 40 is used to confirm the height of the patient's lip before being fixed.

[0073] Referring to Figure 5, a front view of the maxillary plate, which is a component of the intermaxillary relationship recording device for digital denture fabrication according to the first embodiment of the present invention, is shown. When the maxillary plate 10 is positioned in the oral cavity, the front handle 13 protrudes outside the oral cavity so that the practitioner can adjust it, and the friction part 14 formed on the side prevents slippage in the oral cavity.

[0074] Referring to Figure 6, a front view is shown of a state in which a horizontal bur 50 for recording the occlusal plane is attached to a maxillary plate 10, which is a component of the intermaxillary relationship recording device for digital denture fabrication according to the first embodiment of the present invention. The rotating ball 51 provided on the horizontal bur 50 can be inserted into the spherical groove 13a and attached to record the occlusal plane.

[0075] Referring to Figure 7, a perspective view of the mandibular plate, which is a component of the intermaxillary relationship recording device for digital denture fabrication according to the first embodiment of the present invention, is shown. Referring to Figure 8, a bottom view of the mandibular plate, which is a component of the intermaxillary relationship recording device for digital denture fabrication according to the first embodiment of the present invention, is shown. The mandibular plate 20 has a semicircular panel body 21, and is provided with an inner partition 21a and an outer partition 21b, between which impression material can be supplied. In the impression material supply passage 22 portion where the impression material is supplied, a splicing groove 22a is formed for accurate position confirmation during reassembly. At the rear of the mandibular plate 20, first incision grooves (first incisions) 20a are formed on both sides, and a second incision groove (second incision) 20b is formed in the center. The first incision groove 20a can prevent inaccurate impression taking due to interference from the molar portion, and the second incision groove 20b can reduce interference due to tongue movement. A nut hole 20c is formed in the central part of the mandibular plate 20, and a screw 60 for recording vertical occlusion height can be screwed into the nut hole 20c. The side surface of the mandibular plate 20 is provided with a serrated friction portion 23, similar to the maxillary plate 10.

[0076] Referring to Figure 9, a rear view of the mandibular plate, which is a component of the intermaxillary relationship recording device for making digital dentures according to the first embodiment of the present invention, is shown together with the maxillary plate. Impression material is supplied to the maxillary plate 10 and the mandibular plate 20 to take an impression, and the operator adjusts the vertical occlusal height recording screw 60 by rotating it. Here, in addition to vertical occlusal height recording, by applying a colored substance such as loose to the bottom surface of the maxillary plate 10 and moving the upper and lower jaws back and forth and side to side, the intersection drawn by the end of the vertical occlusal height recording screw 60 on the maxillary plate 10 can be recorded at the centric position of the mandible.

[0077] Referring to Figure 10, a perspective view of the anterior tooth handle, which is a component of the intermaxillary relationship recording device for digital denture fabrication according to the first embodiment of the present invention, is shown. The anterior tooth handle 40 comprises an insertion portion 41 that is inserted into the coupling groove 10a and an extension portion 42 that extends from the insertion portion 41. A clamping portion 44, which is part of the extension portion 42, is inserted into the incision groove 10b and increases the fixing force that fixes it in an adjusted position together with the insertion portion 41. A handle portion 43 is formed at one end of the extension portion 42. Here, the anterior tooth handle 40 can be manufactured as a single unit.

[0078] By using the intermaxillary relationship recording device for digital denture fabrication according to the first embodiment of the present invention described above, the digital denture fabrication process can be completed in two or three visits to the clinic.

[0079] Assuming that a digital denture is fabricated on the second visit, on the first visit, an impression is taken for the creation of a working model. The intermaxillary relationships are recorded using the intermaxillary relationship recording device for digital denture fabrication according to the present invention. At this time, the anterior tooth length determination, resin height determination, and horizontal intermaxillary relationships can be recorded. Then, a horizontal bar (ADD POP BOW) is connected and facial arch movement is performed. After that, an oral scan and a scan are performed with the horizontal bar attached. These results and digital information are transmitted to the dental laboratory. The dental laboratory fabricates the final denture after a predetermined period. On the second visit, the final denture is fitted and adjusted to complete the process.

[0080] Assuming a digital denture is fabricated on the third visit, on the first day of the visit, the intermaxillary relationship is recorded simultaneously with impression taking using the intermaxillary relationship recording device for digital denture fabrication according to the present invention. At this time, the length of the anterior teeth, the vertical occlusal height, and the horizontal intermaxillary relationship can be determined. The horizontal bar is connected and the facial arch is moved. The oral cavity is scanned while the horizontal bar is attached, and this information is transmitted to the dental laboratory. The dental laboratory fabricates a temporary denture within a predetermined period. On the second day of the visit, a wash impression is taken using the temporary denture. Once this information is transmitted to the dental laboratory, the final denture is fabricated there. On the third day of the visit, the final denture is fixed and adjusted to complete the process.

[0081] A digital intermaxillary relationship recording device for denture fabrication according to a second embodiment of the present invention may include an upper jaw plate 110, a lower jaw plate 120, an anterior tooth guide member 130, and a vertical occlusion height recording screw 160.

[0082] Referring to Figures 11 and 12, the upper jaw plate 110 may have an impression material provided on its upper surface so that an impression of the maxillary gums can be taken.

[0083] In this case, the maxillary plate 110 consists of a main body 111 made of a flat, semicircular panel with a shape corresponding to the maxilla, and partitions 111a and 111b can be formed along the positions of the teeth so that the impression material can be supplied and cemented. Therefore, an impression of the maxilla can be taken by supplying the impression material to the impression material supply passage 112 between the partitions 111a and 111b and then having the patient bite down. The partitions 111a and 111b consist of an inner partition 111a and an outer partition 111b, with the impression material supplied between them, and their positions also correspond to the positions of the maxilla where the teeth are placed.

[0084] In this case, an anterior tooth guide member 130 or an occlusal plane recording device connecting member 140 may be detachably provided on the front end of the maxillary plate 110. Here, an occlusal plane recording device may be fastened to the occlusal plane recording device connecting member 140.

[0085] In this case, the surface of the maxillary plate 110 on which the impression material is provided may be provided with a lubrication groove 112a or projection so that it can be lubricated to the same position even when reassembled. When reassembled, the lubrication groove 112a or projection is aligned so that the position of the impression material and the maxillary plate 110 coincides. Here, such a lubrication groove 112a or projection may be formed as a protrusion or groove on the panel plane together with the opposite surface, or it may be formed independently of the opposite surface.

[0086] At this time, the upper jaw plate 110 or the lower jaw plate 120 may have holes 112d or grooves 112a, 112b, 112c formed therein, into which impression material can flow and increase bonding strength. The upper jaw plate 110 has holes formed therein along with the lubrication groove 112a, which are used for lubrication during reassembly, and also serve to allow the impression material to flow in and be provided well.

[0087] In this case, the maxillary plate 110 may be provided with friction portions 114 consisting of multiple peaks and valleys to prevent it from slipping in the oral cavity. The friction portions 114 may be formed to protrude in a sawtooth shape in an outward direction parallel to the main body 111 panel of the maxillary plate 110. Such friction portions 114 help to fix the position of the maxillary plate 110 in the oral cavity without slipping.

[0088] Referring to Figures 16 and 17, the mandibular plate 120 may have an impression material provided on its underside so that an impression of the mandibular gums can be taken.

[0089] In this case, the mandibular plate 120 consists of a flat, semicircular panel whose shape corresponds to the mandible, and partitions 121a and 121b may be formed along the positions of the teeth so that the impression material can be provided and cemented. Here, the partitions 121a and 121b consist of an inner partition 121a and an outer partition 121b, and the impression material is provided to the impression material supply passage 122 between the inner partition 121a and the outer partition 121b, and the patient bites down on this in the oral cavity to take an impression of the mandible.

[0090] In this case, the mandibular plate 120 is formed in a panel shape, and a first incision 120a may be formed posteriorly where the molars are located, so that the impression material can be hardened and inserted with the fingers while avoiding interference with the gums during mandibular movement. The reason for forming the first incision 120a in this way is that the part where the molars are located is formed to be higher than other parts. Therefore, by forming the first incision 120a, accurate mandibular impressions can be taken without interference.

[0091] In this case, the mandibular plate 120 may have a second incision 120b formed in the posterior central part to avoid interference from the tongue, allowing the tongue to move to a posterior position and enabling the patient to easily close the incision in a centric relation.

[0092] In this case, the first and second incisions 120a and 120b may be formed in a planar arc shape.

[0093] In this case, the surface of the mandibular plate 120 to which the impression material is provided may be provided with a fitting groove 122a or projection so that it can be fitted to the same position even when reassembled. The reason for forming such a fitting groove 122a or projection on the maxillary plate 110 is the same.

[0094] At this time, holes 122b are formed in the mandibular plate 120 so that the impression material can be provided uniformly.

[0095] The anterior tooth guide member 130 can be detachably attached to the front end of the maxillary plate 110, as shown in Figures 13 to 15. After attachment, an index relationship with the lip can be obtained, and the aesthetic position of the anterior teeth can be reproduced via the facial scanner 170 while attached.

[0096] In this case, the anterior tooth guide member 130 can be formed in the shape of the maxillary six anterior teeth 131. Such a shape of maxillary six anterior teeth can be fabricated by referring to standard maxillary six anterior teeth.

[0097] In this case, the anterior tooth guide member 130 may be detachably attached to the front end of the maxillary plate 110 so as to be adjustable in height in the vertical direction relative to the maxillary plate 110.

[0098] In this case, the anterior tooth guide member 130 may have an insertion portion 132 formed on the anterior tooth guide member 130 so as to be slidable in the maxillary plate 110, and the maxillary plate 110 may have a groove portion 110a formed on it through which the insertion portion 132 slides, or vice versa.

[0099] Referring to Figures 19 and 20, the occlusal plane recording device connecting member 140 can be detachably connected to the front end of the maxillary plate 110 in place of the anterior tooth guide member 130, thereby enabling the occlusal plane recording device to be fastened.

[0100] In this case, the occlusal plane recording device connecting member 140 may have a spherical groove 142 formed therein, which accommodates the rotating ball 151 of the occlusal plane recording device.

[0101] In this case, similar to the anterior tooth guide member 130, the occlusal plane recording device connecting member 140 has an insertion portion 141 and can be assembled to slide in the groove portion 110a of the maxillary plate 110.

[0102] Referring to Figure 18, the vertical occlusal height recording screw 160 can be screwed through one side of the mandibular plate 120 so as to record the vertical occlusal height between the maxillary plate 110 and the mandibular plate 120.

[0103] In this case, as shown in Figure 16, the mandibular plate 120 has a nut hole 122c formed in the thickness reinforcement portion 122d, and the height can be adjusted by fastening the vertical occlusal height recording screw 160 into the nut hole 122c.

[0104] Referring to Figure 11, a perspective view from the upper side of the maxillary plate, which is a component of the intermaxillary relationship recording device for digital denture fabrication according to the second embodiment of the present invention, is shown. Referring to Figure 12, a perspective view from the lower side of the mandibular plate, which is a component of the intermaxillary relationship recording device for digital denture fabrication according to the second embodiment of the present invention, is shown. In the illustrated embodiment, the maxillary plate 110 is formed in a panel shape, with a groove 110a protruding from the front. The body 111 of the maxillary plate has an inner partition 111a and an outer partition 111b, and impression material is provided between them. At this time, a lucing groove 112a is formed on the bottom surface between the partitions 111a and 111b so that the position of the impression material and the maxillary plate 110 can be aligned when reassembling them. Part of the lucing groove 112a may be formed as a hole. Multiple holes 112d are also formed in the outer partition 111b to facilitate the supply of impression material. Multiple rounded grooves 111c are formed in the inner septum 111a, facing inward. These rounded grooves 111c allow for smooth retrieval of the original position when reassembling the impression material. The outer surface of the main body 111 of the maxillary plate 110 is provided with protruding sawtooth-shaped friction parts 114 to prevent slippage after it has settled in the oral cavity. Multiple grooves 112b may also be formed on the lower surface of the maxillary plate 110, and multiple grooves 112c may also be formed on the outer surface of the outer septum 111b.

[0105] Referring to Figure 13, an exploded perspective view is shown showing the connection between the maxillary plate and the anterior tooth guide member, which are some components of the intermaxillary relationship recording device for digital denture fabrication according to the second embodiment of the present invention. Referring to Figure 14, a perspective view is shown of the anterior tooth guide member, which are some components of the intermaxillary relationship recording device for digital denture fabrication according to the second embodiment of the present invention. Referring to Figure 15, a front view is shown of the intermaxillary relationship recording device for digital denture fabrication according to the second embodiment of the present invention, showing the state in which the anterior tooth guide member is assembled to the maxillary plate. In the illustrated embodiment, the anterior tooth guide member 130 is provided with a sliding insertion portion 132, and the front of the maxillary plate 110 is provided with a groove portion 110a into which the insertion portion 132 is slidably inserted. Therefore, the anterior tooth guide member 130 can be assembled in a sliding manner in front of the maxillary plate 110 via the insertion portion 132 and the groove portion 110a, and its height can also be adjusted. The anterior tooth guide member 130 can be manufactured in the shape of a standard maxillary six anterior teeth 131. The anterior tooth guide member 130 is attached to the maxillary plate 110, allowing the position of the anterior teeth to be set based on the patient's facial features, and of course, the height can be adjusted and the device can be attached and detached.

[0106] Referring to Figure 16, a perspective view of the mandibular plate, which is a component of the intermaxillary relationship recording device for digital denture fabrication according to the second embodiment of the present invention, is shown. Referring to Figure 17, a plan view of the mandibular plate, which is a component of the intermaxillary relationship recording device for digital denture fabrication according to the second embodiment of the present invention, is shown. In the illustrated embodiment, the mandibular plate 120 has a semicircular panel body 121 and is provided with an inner partition 121a and an outer partition 121b, between which impression material can be supplied. An articulation groove 122a is formed in the impression material supply passage 122 portion where the impression material is supplied, for accurate position confirmation during reassembly. Part of the articulation groove 122a of the mandibular plate may be formed in the shape of a hole. A hole 122b for supplying impression material may also be formed in the outer partition 121b. At the rear of the mandibular plate 120, first incision grooves (first incisions) 120a are formed on both sides, and a second incision groove (second incision) 120b is formed in the center. The first incision groove 120a prevents interference from the molar portion, which can lead to inaccurate impression taking, and the second incision groove 120b reduces interference from tongue movement. A nut hole 122c is formed in the central part of the mandibular plate 120, and a vertical occlusal height recording screw 160 can be screw-fixed to the nut hole 122c. A thickness reinforcement portion 122d is formed in the part where the nut hole 122c is formed so that it is thicker than other parts. By increasing the thickness of the part where the nut hole 122c is formed in this way, the vertical occlusal height recording screw 160 can maintain its position accurately without wobbling, thereby enabling accurate recording of the vertical occlusal height. The side surface of the mandibular plate 120 is provided with a serrated friction portion 123, similar to the maxillary plate 110. Furthermore, a cutout portion 122e is formed on the anterior side of the mandibular plate 120 so that a strip-shaped incision can be made in part. The resection portion 122e may consist of a portion that is thinner than the lateral incisions and the other portion connecting the lateral incisions. The physician may move the anterior portion of the resection portion 122e vertically as needed, thereby cutting the resection portion 122e into a strip shape and separating it from the mandibular plate 120.

[0107] Referring to Figure 18, (a) a front view and (b) a rear view are shown of a digital intermaxillary relationship recording device for denture fabrication according to a second embodiment of the present invention, in which the vertical occlusal height is aligned with the maxillary plate using a screw. The vertical occlusal height can be aligned using the vertical occlusal height recording screw 160, and the position of the anterior teeth can be set based on the patient's facial features using the anterior tooth guide member 130 coupled to the maxillary plate 110.

[0108] Referring to Figure 19, an exploded perspective view is shown showing the connection between the maxillary plate and the occlusal plane recording device connecting member in a digital intermaxillary relationship recording device for denture fabrication according to a second embodiment of the present invention. Referring to Figure 20, a front view is shown of the occlusal plane recording device connected to the digital intermaxillary relationship recording device for denture fabrication according to a second embodiment of the present invention. The occlusal plane recording device connecting member 140 can be slidably assembled in front of the maxillary plate 110 using a sliding insertion portion 141 and a groove portion 110a, similar to the anterior tooth guide member 130. The occlusal plane recording device connecting member 140 has a spherical groove 142 into which the rotating ball 151 of the occlusal plane recording device is inserted, and a portion of the surface forming the spherical groove 142 is cut to facilitate assembly and disassembly. More specifically, a spherical groove 142 is formed into which the rotating ball 151 of the horizontal bar 150 of the occlusal plane recording device for facial arch movement and occlusal plane recording is inserted. Such horizontal bars 150 can be immediately applied to products that the actual applicant sells under the trademark ADD POP BOW.

[0109] Referring to Figure 21, a perspective view is shown of a patient's oral cavity being scanned using a facial scanner, which is a component of the intermaxillary relationship recording device for digital denture fabrication according to the second embodiment of the present invention. In the illustrated embodiment, the patient's oral cavity can be scanned with the facial scanner 170 after the maxillary plate 110, mandibular plate 120, anterior tooth guide member 130, and screw 160 have all been fitted as described above.

[0110] By using the intermaxillary relationship recording device for digital denture fabrication according to the second embodiment of the present invention described above, the digital denture fabrication process can be completed in one or two visits to the clinic.

[0111] In the case of completing the fabrication of digital dentures in a single visit, the upper and lower jaws and oral cavity are first scanned (first scan information). Using the intermaxillary relationship recording device (JP fork) according to the present invention, impression taking and intermaxillary relationship recording are performed simultaneously. The records obtained here may include anterior tooth length determination, vertical occlusal height determination, and horizontal intermaxillary relationship recording. Subsequently, with the intermaxillary relationship recording device positioned in the oral cavity, a facial scanner is used to take a picture (second scan information).

[0112] The information mentioned above will be provided to the dental laboratory.

[0113] In the dental laboratory, a facial scanner program is used to overlay the first and second scan data obtained at the hospital, and a reference plane is set based on the facial features. Then, the data is transferred to a CAD program, and the denture is designed according to the reference plane. The designed denture is then manufactured using CAM or a 3D printer. Finally, the final denture is fitted and adjusted to complete the process. If the consultation is in the morning, it may be possible to complete and fit the denture in the afternoon.

[0114] If a facial scanner is not available, and assuming that a digital denture is fabricated on the second visit, on the first visit, the upper and lower jaws and oral cavity are first scanned (first scan information). The intermaxillary relationships are recorded using the intermaxillary relationship recording device according to the present invention. At this time, the anterior tooth length determination, resin height determination, and horizontal intermaxillary relationships can be recorded. Then, a horizontal bar (ADD POP BOW) is connected and facial arch movement (occlusal plane) is performed. Next, the oral cavity is scanned while the oral scan and horizontal bar are still connected (second scan information). These results and digital information are transmitted to the dental laboratory. The dental laboratory mounts the denture on a virtual articulator based on the occlusal plane obtained by overlaying the first and second scan information obtained at the hospital using a CAD program. At this time, the overlapping points can become an anterior tooth guide member with the shape of the six anterior teeth, the overlapping accuracy is confirmed in cross-section, and the occlusal plane (FH plane, camper's plane) is set.

[0115] Next, the denture is designed based on the occlusal plane. The designed denture is then fabricated using CAM or a 3D printer. On the second day of the visit, the final denture is fitted and adjusted to complete the process. Of course, even in this case, if done quickly, it is possible to fabricate the denture on the same day.

[0116] While embodiments of the present invention have been described, the spirit of the invention is not limited by the embodiments presented herein. Those skilled in the art who understand the spirit of the invention can easily propose other embodiments within the same spirit by adding, changing, deleting, or adding components, and these too can be said to be within the spirit of the present invention. [Industrial applicability]

[0117] This invention can be applied when making dentures in a dental setting.

Claims

1. An upper jaw plate on which impression material is provided on the upper surface so that an impression of the upper jaw gums can be taken, A mandibular plate on which impression material is provided on the underside so that an impression of the mandibular gums can be taken, A digital intermaxillary relationship recording device for denture fabrication, comprising: an anterior tooth handle for obtaining the cutting position of the maxillary anterior teeth by adjusting the height so that the upper lip contacts one side of the anterior end of the maxillary plate.

2. The anterior tooth handle is partially inserted into a coupling groove located at the front end of the maxillary plate, and is fixed after its height is adjusted, as described in claim 1, for the intermaxillary relationship recording device for digital denture fabrication.

3. The aforementioned front tooth handle is An insertion portion is inserted vertically into the coupling groove formed in the upper jaw plate and fixed in place so as to be able to adjust its height, An extension is attached to the insertion part, with one end fixed to it and the other end extending horizontally, which comes into contact with the upper lip during the procedure. The digital intermaxillary relationship recording device for denture fabrication according to claim 2, further comprising a handle portion extending from the other end of the extension portion.

4. The intermaxillary relationship recording device for digital denture fabrication according to claim 1, wherein a horizontal bar for recording the occlusal plane is assembled to be detachable and rotatable on one side of the maxillary plate.

5. The intermaxillary relationship recording device for digital denture fabrication according to claim 4, wherein the front end of the maxillary plate is provided with a handle that protrudes forward, and the handle is provided with a spherical groove that can accommodate a rotating ball provided in the center of the horizontal bar.

6. The intermaxillary relationship recording device for digital denture fabrication according to claim 5, wherein the handle of the maxillary plate is positioned lower than the body of the maxillary plate.

7. The intermaxillary relationship recording device for digital denture fabrication according to claim 1, wherein the maxillary plate or mandibular plate consists of a planar, semicircular panel having a shape corresponding to the maxilla and mandible, and partitions are formed along the positions of the teeth so that the impression material can be provided and cemented.

8. The mandibular plate is formed in a panel shape, and a first incision is formed at the posterior side where the molars are located, so that impression material can be hardened and inserted with the fingers while avoiding interference with the gums during mandibular movement, as described in claim 1.

9. The mandibular plate has a second incision formed in the posterior central part to avoid tongue interference, to push the tongue backward and position it so that the patient can easily close it in centric relation, as described in claim 8.

10. The intermaxillary relationship recording device for digital denture fabrication according to claim 1, wherein the surface on which the impression material of the upper or lower jaw plate is provided is provided with a splinting groove or projection so that it can be splinted in the same position when reassembled.

11. The intermaxillary relationship recording device for digital denture fabrication according to claim 1, further comprising a vertical occlusal height recording screw that penetrates one side of the mandibular plate and is screw-fixed to it, so as to be able to record the vertical occlusal height between the maxillary plate and the mandibular plate.

12. An upper jaw plate on which impression material is provided on the upper surface so that an impression of the upper jaw gums can be taken, A mandibular plate on which impression material is provided on the underside so that an impression of the mandibular gums can be taken, A digital intermaxillary relationship recording device for denture fabrication, comprising: an anterior tooth guide member that can be detachably coupled to the anterior end of the maxillary plate, which can acquire an index relationship with the lip after coupling and can reproduce the aesthetic position of the anterior teeth via a facial scanner in the coupled state.

13. The anterior tooth guide member is formed in the shape of the six maxillary anterior teeth, as described in claim 12, for the intermaxillary relationship recording device for digital denture fabrication.

14. The intermaxillary relationship recording device for digital denture fabrication according to claim 12, wherein the anterior tooth guide member is detachably provided on the front end of the maxillary plate so as to be adjustable in height in the vertical direction relative to the maxillary plate.

15. The intermaxillary relationship recording device for digital denture fabrication according to claim 12, wherein the anterior tooth guide member has an insertion portion formed therein so as to be slidable in the maxillary plate, and the maxillary plate has a groove formed therein through which the insertion portion slides, or vice versa.

16. Control method for an intermaxillary relationship recording device for digital denture fabrication according to claim 12, further comprising an occlusal plane recording device connecting member which can be detachably coupled to the front end of the maxillary plate instead of the anterior tooth guide member, and to which an occlusal plane recording device is fastened.

17. Control method for a digital intermaxillary relationship recording device for denture fabrication according to claim 16, wherein the occlusal plane recording device connecting member has a spherical groove formed therein for housing the rotating sphere of the occlusal plane recording device.

18. Control method for a digital intermaxillary relationship recording device for denture fabrication according to claim 12, wherein the upper or lower jaw plate has holes or grooves formed in it into which impression material can flow and increase bonding force.

19. Control method for a digital intermaxillary relationship recording device for denture fabrication according to claim 12, wherein the maxillary plate or mandibular plate consists of a planar, semicircular panel having a shape corresponding to the maxilla and mandible, and partitions are formed along the positions of the teeth so that the impression material can be provided and cemented.

20. Control method for a digital intermaxillary relationship recording device for denture fabrication according to claim 12, wherein the mandibular plate is formed in a panel shape, and a first incision is formed posterior to where the molars are located, so that impression material can be hardened and inserted with the fingers while avoiding interference with the gums during mandibular movement.

21. Control method for a digital intermaxillary relationship recording device for denture fabrication according to claim 20, wherein the mandibular plate has a second incision formed in the central posterior part to avoid tongue interference, to push the tongue backward and position it so that the patient can easily close it in centric relation.

22. Control method for a digital intermaxillary relationship recording device for denture fabrication according to claim 12, wherein the surface on which the impression material of the upper jaw plate or lower jaw plate is provided is provided with a splinting groove or projection so that it can be splinted in the same position when reassembled.

23. A control method for an intermaxillary relationship recording device for digital denture fabrication according to claim 12, further comprising a vertical occlusal height recording screw that penetrates one side of the mandibular plate and is screw-fixed to it, so as to be able to record the vertical occlusal height between the maxillary plate and the mandibular plate.

Images