JP3603199B2 - Artificial molar unit and complete denture prosthesis - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention reconstructs upper and lower jaw molars as natural facet molars each having an occlusal relationship similar to a natural tooth, and combines them to form a complete artificial molar unit, and an artificial molar unit using a dental articulator. The present invention relates to a complete denture prosthesis which can be manufactured by incorporating the same and can create a physiological occlusion state.
[0002]
The facet is a tooth cusp inclination angle and defines the attrition form (see FIGS. 10, 11, 13, and 14), and the loudspeaker [speet curve] is the shape of the oral cone. An arc (R ≒ 10 cm) from a vertex, ie, a speed center [spee center], defines the arrangement state (see FIG. 9).
[0003]
The physiological occlusal state refers to an occlusal fitting position which is a starting point and an ending point of the bite, and an occlusal state relating to a posterior occlusal position which is a limit position where the ligament is tensioned.
[0004]
[Prior art]
First, the present inventor mounts a tooth plaster model between the upper and lower jaw frames, and implements a pressure receiving function and a traction function that can operate in all directions of motion equivalent to the jaw joint function of a living body, thereby achieving a physiological function. A dental articulator [hereinafter, a prior art articulator. ] Has been proposed.
[0005]
As shown in FIG. 18, the prior art articulator Z is used in the clinical field of dentists and dental technicians in the treatment of the interlocking of upper and lower teeth and in preparing a prosthesis, and has a forward inclination angle of 10 °. By using the occlusal plane plate 8, the maxillary tooth gypsum model 6 is mounted on the maxillary frame 51 in parallel with the Campel Plane, which is a prosthetic plane, and the lower jaw plaster model 7 is set on the lower jaw frame 52 as a base. mounted on mounting fixed conversion plate 1 (upper structural member 2), together with the upper and lower jaws relationship reproduce the physiological vertical relationship so that the state of the center position (forward upper), conversion plate 1 (2) By adjusting the entire movement direction of the mandibular movement by performing a shifting operation, it is possible to reproduce or analyze a physiological occlusal state of a living body. [WO00 / 21457]
[0006]
The characteristic configuration is that the occlusal plane plate 8 having the same forward inclination angle as the occlusal plane angle of the living body, and the average position of the speed center 91 and the backward movement axis 92 are set at a plurality of places, and each is stippled as a pair on both sides. An occlusal analysis plate 9; an incisor guiding plate 56 in which an inverted conical slope that maps the cusp inclination of the front, rear, left and right is formed so that the tip of the incisor guiding rod 54 slides; comprising a conversion plate 1 (2) to be mounted as a platform, by operating staggered placed, fitted with a tooth plaster model 7 of the lower jaw on the conversion plate 1 (2), the biological intercuspal and rear The physiological occlusal state related to the occlusal position is reproduced.
[0007]
Then, (1) by engaging and fixing the upper structural member and the lower structural member, the occlusal state related to the cusp fitting position is reproduced, and (2) the upper structural member is slid to lower the structural member. By translating (sliding) relatively in a forward and downward direction of 30 °, the physiological occlusal state relating to the intercuspal position and the posterior occlusal position can be reproduced. (See FIG. 19)
[0008]
By the way, there are many cases in which the new denture does not fit, and even if the adjustment is repeated, the inconsistency of the occlusion is not resolved, and there are many cases in which complaints of systemic symptoms are accompanied.
[0009]
In such cases, clinical dentists will perform occlusal treatment, but the definition of “center position”, which is the basic concept of the jaw position that serves as a guideline, has recently been changed from “last retreat” to “anterior superior orientation”. Despite this, standard procedures have not been established because the clinical significance has not yet been determined.
[0010]
[Problems to be solved by the invention]
The center position (upper anterior direction) is determined by the activity of the closing muscles with the jaw joint as the fulcrum, and the normal and normal muscle activities when the teeth are meshed are balanced left and right and back and forth. A stable position under physiological gravity (anatomically condylar condylar position) or a physiologically and functionally neutral neutral relation position (Neutral Relation proposed by the present inventor, hereinafter abbreviated as NR) ), A new guiding principle in the anatomical findings and functional analysis of the temporomandibular joint, that is, the stomatognathic system not only performs the masticatory movements in the living body, but also the head-axis inertial balance system in the posture control In other words, it is important to diagnose and treat physiological occlusion based on the recognition that the skull has a function to balance the front and back and left and right (included in the definition of NR). is there.
[0011]
Also, since all dentures have lost all teeth, it can be said that occlusal treatment (based on correction of the lower jaw position) is a occlusal treatment that reconstructs all occlusal elements such as occlusal height, occlusal position, etc. It is common to the treatment of temporomandibular disorders regardless of edentulous jaw.
[0012]
As described above, the prior art articulator has bilateral symmetry under physiological gravity, can set an occlusal plane with a forward inclination angle of about 10 °, and has a loudspeaker that is in harmony with the pendulum movement of the lower jaw of a living body. In addition, the occlusal engagement position, the posterior occlusal position, and the occlusal slope harmonized in the right and left direction can be reproduced, and the physiological occlusal state in all directions of movement based on the new guiding principle (included in the definition of NR) ) Can be reproduced. [See FIGS. 16 to 19]
[0013]
If this prior art articulator is used, the physiological occlusion state in all directions of movement can be reproduced and operated, so that a denture (artificial molar in the present invention) can be manufactured by mapping or duplicating or adjusting the natural dentition (master model). In addition, a denture prosthesis capable of creating a physiological occlusion state (a complete denture prosthesis according to the present invention) can be manufactured.
[0014]
Although artificial molars that simulate a natural dentition have been proposed as prior art, it is impossible to create correct or ideal artificial molars (natural faceted molars) without using the prior articulator proposed by the present inventors. It would be possible. Because, as described in the specification of the prior application, the company has knowledge based on a new guiding principle (“Relation between articulator and living body” and “Geometric anatomical consideration of jaw movement”) and builds on this. If the articulator implements a pressure receiving function and a traction function that can operate in all directions of movement equivalent to the jaw joint function of the living body and cannot reproduce, analyze or verify the physiological occlusion state, manufacture a correct or ideal denture Is difficult. FIG. 20 shows the harmony between the occlusal surface morphology and the jaw movement trajectory (three-dimensional analysis). [Fujita Kazuya: Temporomandibular disorders-Criteria for physiological occlusion-(2nd.ed.), Dental Forum 1999, p. 186] FIG. 21 shows the relationship between the occlusal plane (reference plane), the loudspeaker, and the posterior axis of motion (rear guiding plane), and the buccal cusp of the anterior teeth and the molars is adjusted in a standard or ideal manner. Show the smile line. [Ibid. , P. 150 collections)
[0015]
The present invention has been made in view of such circumstances, and reconstructs the upper and lower molars of the upper and lower jaws as natural facet molars having an occlusal relationship similar to natural teeth, and combines them to form a complete artificial molar unit. And a complete denture prosthesis which can be manufactured by incorporating an artificial molar unit using a dental articulator and which can reproduce a physiological occlusal state.
[0016]
[Means for Solving the Problems]
In order to solve the problem, the present invention reconfigures the upper and lower molars of the upper and lower jaws as natural facet molars having an occlusal relationship similar to a natural tooth, and adjusted them as a standard by combining them into a set. An artificial molar unit capable of reproducing a well-balanced occlusal state in all directions of movement including formation of a smile line, using a natural dentition as a master model, its facet (tooth cusp inclination angle) or abrasion form, and Upper and lower jaw molars whose loudspeaker or arrangement state is mapped or duplicated or adjusted are individually shaped, and consist of a block-arranged natural facet molar block element for upper jaw and a natural facet molar block element for lower jaw. It is.
[0017]
Further, using a prior art articulator, a complete denture prosthesis made by incorporating the artificial molar unit having a facet with a deployment angle of 140 ° to 150 ° for a complete denture prosthesis, and having the following properties. It is a feature.
[0018]
<1> Shaped by mapping, duplicating or adjusting the facet (tooth cusp inclination angle) or abrasion pattern of natural dentition and loudspeaker or arrangement, and reconstructed to have an occlusal relationship similar to natural teeth Have been.
[0019]
<2> The first premolar buccal cusp (P1), the second premolar lingual and buccal cusps (P2, P3), and the first molar lingual cusp of the natural facet molar block element for the maxilla The level is formed so that the plane including P4) becomes the maxillary occlusal plane (reference plane).
[0020]
<3> Reproduces a balanced occlusal state in all directions of motion, and does not require grinding adjustment.
[0021]
<4> The buccal cusps of the anterior teeth and the premolars are arranged on the standardized smile line.
[0022]
Here, it is preferable that a face bow (not shown) for recording a Campel plane parallel to the occlusal plane of the living body is provided as an attached jig.
[0023]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described below with reference to the accompanying drawings.
[0024]
FIG. 1 is an explanatory view showing the appearance of a natural dentition N as a master model. In order to form an artificial molar, natural teeth are mounted on the dental articulator Z, and the dentition including its facet (tooth cusp inclination angle) or abrasion form, and loudspeaker or arrangement state is analyzed or verified. .
[0025]
FIG. 2 is an explanatory view of the view of the occlusal surface showing the artificial molar unit X, where (a) is a natural facet molar block element X1 for the upper jaw and (b) is a natural facet molar block element X2 for the lower jaw.
[0026]
FIG. 3 is an explanatory diagram showing the occlusal surface view of the natural facet molar block element X1 for the upper jaw (right). Note that the maxillary occlusal plane P (reference plane) is leveled. In the figure, XX is an interdental joint.
[0027]
FIG. 4 is a buccal view explanatory diagram showing a state in which the upper occlusal plane P (reference plane) of the natural facet molar block element X1 for the upper jaw (right) is aligned with the occlusal plane plate 8. Note that loudspeakers have already appeared.
[0028]
FIG. 5 is an explanatory view of the buccal side view of the natural facet molar block element X1 for the upper jaw (left).
[0029]
FIG. 6 is an explanatory view of the natural facet molar block element X2 for the lower jaw (left) as viewed from the lingual side.
[0030]
FIG. 7 is an explanatory diagram of buccal visual occlusion of natural facet molar block elements X1 and X2 (X2a; x2b) for the upper and lower jaws (left).
[0031]
FIG. 8 is an explanatory view showing an occlusal surface view of the completed denture of the upper and lower molars.
[0032]
FIG. 9 is an explanatory diagram showing the occlusion end surface in A view in FIG. In the upper and lower molars, the cut line is the mesial fossa and fovea of the upper jaw and the cusp of the lower jaw, which fit each other, so that the loudspeaker can be seen.
[0033]
FIG. 10 is an explanatory view showing the biting end face in the B-view in FIG. Since the first premolars of the upper and lower jaws are cut laterally, a horizontal movement trajectory L4 (FIG. 20) is inferred.
[0034]
FIG. 11 is an explanatory diagram showing the C-biting end surface in FIG. 8. Since the first molars of the upper and lower jaws are cut to the side, a horizontal movement trajectory L6 (FIG. 20) is inferred.
[0035]
FIG. 12 is an explanatory diagram showing the occlusal surface view of the complete denture of the upper and lower molars.
[0036]
FIG. 13 is an explanatory view showing the biting end face as viewed in D in FIG. Since the upper first premolar tooth 14 is cut in the backward movement direction, a backward guiding surface is inferred. [If necessary, see the backward motion trajectory L4 in FIGS. 19 and 20 and FIG. 21]
[0037]
FIG. 14 is an explanatory view showing the E-biting end face in FIG. Since the upper molar part (X1) is cut in the backward movement direction, a backward guiding surface is inferred. [If necessary, see the backward motion trajectory L6 in FIGS. 19 and 20 and FIG. 21]
[0038]
FIG. 15 is an explanatory view of the view of the occlusal surface showing the complete denture prosthesis Y. FIG. 15 (a) shows a completed maxillary denture Y1 using the natural facet molar block element X1 for the upper jaw, and FIG. 15 (b) shows a natural facet molar block element for the lower jaw. This is a completed mandibular denture Y2 using X2.
[0039]
FIG. 16 is an explanatory side view illustrating the relationship between the dental articulator Z and a living body (cephalo display).
[0040]
FIG. 17 is an explanatory side view showing the oral cone in the cusp fitting position.
[0041]
Using the natural dentition N shown in FIG. 1 as a master model and using the prior art articulator Z shown in FIG. 18, the facet (tooth cusp inclination angle) or the abrasion form, and the loudspeaker or arrangement state are mapped or copied or reproduced. The adjusted upper and lower molars (artificial molars) are individually shaped. Since it is natural that both the upper and lower jaws are paired on the left and right, there is no particular restriction on either the left or right.
[0042]
Here, as the incisor guiding plate 56 in the prior art articulator Z, three types of conical shapes having different deployment angles are prepared and used in pairs with the rearward movement axis 92.
[0043]
The normal occlusal dentition of the temporomandibular joint has a posterior motion angle of 30 ° and a deployment angle of 100 °. As the complete denture prosthesis, one having a rearward movement angle of 15 ° and a deployment angle of 140 ° is used. For these intermediate occlusal dentitions, those having a rearward motion angle of 22 ° and a deployment angle of 120 ° are used.
[0044]
The incisor guiding plate 56 can move the incisor guiding rod 54 in the front-rear and left-right directions to measure the respective inclination angles, so that it instructs not only conventional incisors but also molars [ Molar guidance stick].
[0045]
As shown in FIGS. 2 to 7, natural artificial facet molar block elements X1; X2 (X2a, X2b) for upper and lower jaw, in which individual artificial molars 14 to 17; Are arranged as a single block, and a natural facet molar block element X1 for the upper jaw, a lower jaw integrally formed as two molars as one block (X2a), and two premolars as one block (X2b). A natural facet molar tooth block element X2 is created.
[0046]
Here, the first premolar 14 buccal cusp (P1), the second premolar 15 lingual and buccal cusps (P2, P3) of the natural facet molar block element X1 for the upper jaw, and the first molar 16 tongue The level is formed such that the plane including the lateral cusp (P4) becomes the maxillary occlusal plane P (reference plane). Then, the natural facet molar block element X1 for the maxilla is placed on the occlusal plane plate 8 and fixed to the maxillary base floor with the reference plane P aligned so as to prepare a prosthesis for the molar part.
[0047]
Regarding the loudspeaker and horizontal movement, the occlusal surface views of the completed dentures of the molars of the upper and lower jaws are shown in FIG. 8, and FIGS. 9 to 11 show the occlusal end surfaces as viewed in A, B, and C in FIG. Also, regarding the posterior guiding surface (rearward movement), FIG. 12 shows an occlusal surface view of the completed denture of the molar part of the upper and lower jaws, and FIGS. 13 and 14 show the occlusal end surfaces in D and E views in FIG. . [See also FIGS. 20 and 21. ]
[0048]
Each block element X1; X2 (X2a, X2b) having the above configuration may be used as a master (masterpiece) for raising a molding die, and a clinically replicated molded product is used.
[0049]
As shown in FIG. 15, the complete denture prosthesis Y prepared an artificial tooth arranging base floor by a conventional method, and adjusted the anterior teeth alignment on the occlusal plane plate 8 of the prior art articulator Z (FIG. 18). Thereafter, the artificial molar unit X [X1; X2 (X2a, X2b)] having a deployment angle of 140 ° to 150 ° (actually, approximately 150 °) is prepared, and the reference of the natural facet molar block element X1 for the maxilla is prepared. With the surface P aligned with the occlusal plane plate 8, it is fixed to the maxillary base floor with non-shrinkable wax, and the gingival part is waxed up to produce an upper denture prosthesis Y1. At the same time, the natural facet molar block elements X2 (X2a, X2b) for the lower jaw are fitted and fixed with non-shrinkage wax, and the gingival part is waxed up to prepare a lower denture prosthesis Y2. That.
[0050]
That is, the occlusal acquisition at the time of closing is performed, the face occlusal plane of the maxillary occlusal plane is acquired using the Campel Faithboard (not shown) for recording the Campel plane parallel to the occlusal plane of the living body, and the first application occlusion is performed. Mount the working model of the upper and lower jaws using the device Z, remove the occlusal floor used for bite acquisition to create a base floor for artificial tooth arrangement, adjust the anterior teeth arrangement, and adjust the deployment angle to about 150 ° An artificial molar unit X [X1; X2 (X2a, X2b)] is prepared, and the reference surface P of the natural facet molar block element X1 for the upper jaw is fixed to the maxillary base floor with non-shrinkable wax in a state of being aligned with the occlusal plane plate 8. The gingival part is waxed up to create an upper denture prosthesis (Y1), so that the mesial fossa and fovea of the posterior part are aligned on the loudspeaker, and the incisal end of the maxillary incisor is adjusted to the smile center (approx. Speed Center, hereinafter the same.) Buccal cusp tip of the front teeth and the magnitude molars aligned in an arc centered forms a smile line standard harmonized with. (Maximal completed denture Y1)
[0051]
Next, the natural facet molar block elements X2 (X2a, X2b) for the lower jaw are fitted to the upper complete denture Y1 (the target is the arranged natural facet molar block elements X1 for the upper jaw), and fixed with non-shrinkable wax. By waxing up the part, the buccal cusp of the mandibular molar part is aligned and adjusted on the loudspeaker, and the incisal end of the lower incisor part and the incisal part of the lower canine part are aligned in an arc centered on the smile center, and left and right equal A mandibular denture prosthesis (mandibular completed denture Y2) is created by reproducing the incisal occlusal position during anterior occlusion, and a complete denture prosthesis Y is completed.
[0052]
Here, the standard smile line is formed by aligning the mesial fossa and fovea of the maxillary molar and the buccal cusp of the mandibular molar on the loudspeaker respectively, and adjusting the maxillary central incisor, canine incisor, and maxillary incisor. The buccal cusp of one premolar, the buccal and lingual cusps of the maxillary second premolar, and the lingual cusp of the maxillary first molar contact one occlusal plane, the upper and lower jaw incisors and the lower jaw The incisors of the canines are aligned with arcs centered on the smile center, respectively, and are adjusted so as to reproduce the incisal occlusal position of the left and right equal anterior occlusion. [See FIGS. 16, 17 and 21]
[0053]
The complete denture prosthesis Y thus obtained has an occlusal relationship similar to natural teeth, can reproduce a balanced occlusal state in all directions of movement, and does not require grinding adjustment. In addition, the buccal cusp of the anterior teeth and the premolars and the posterior teeth have a standardized smile line.
[0054]
【The invention's effect】
According to the present invention, the artificial molar unit is formed by mapping or duplicating the facet (tooth cusp inclination angle) or abrasion form of the natural dentition, and the loudspeaker or arrangement state. Therefore, the complete denture prosthesis can be reconstructed so as to have an occlusal relationship similar to a natural tooth. In addition, a well-balanced occlusal state can be reproduced in all directions of movement, so that grinding adjustment is unnecessary. In addition, the buccal cusp of the anterior teeth and the premolars can form a smile line with standard adjustment.
[0055]
Each natural facet molar block element created by the prior articulator may be used as a prototype (masterpiece) when raising a molding die, and in clinical practice, a replicated molded product can be used, so mass production is possible. Moreover, the production of artificial molars and complete denture prostheses containing the same can be standardized. Therefore, it is extremely useful and valuable in the art.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing the appearance of a maxillary natural dentition N as a master model.
FIG. 2 is an explanatory view of an occlusal surface showing an artificial molar unit X, wherein (a) is a natural facet molar block element X1 for the upper jaw, and (b) is a natural facet molar block element X2 for the lower jaw.
FIG. 3 is an explanatory view showing an occlusal surface view of a natural facet molar block element X1 for the upper jaw (right).
FIG. 4 is an explanatory view viewed from the buccal side showing a state in which an upper occlusal occlusal plane is aligned with an occlusal plane plate in a natural facet molar block element X1 for the upper jaw (right).
FIG. 5 is an explanatory diagram showing a buccal side view of a natural facet molar block element X1 for the upper jaw (left).
FIG. 6 is an explanatory view of a natural facet molar block element X2 for the lower jaw (left) as viewed from the lingual side.
FIG. 7 is an explanatory diagram of buccal visual occlusion of natural facet molar block elements X1 and X2 (X2a; x2b) for upper and lower jaws (left).
FIG. 8 is an explanatory view showing an occlusal surface view of completed dentures of upper and lower molars.
FIG. 9 is an explanatory view showing an occlusion end face in a view A in FIG. 8;
FIG. 10 is an explanatory view showing an occlusion end face as viewed in B in FIG. 8;
FIG. 11 is an explanatory view showing an occlusion end face in the C direction in FIG. 8;
FIG. 12 is an explanatory diagram showing an occlusal surface view of completed dentures of upper and lower molars.
FIG. 13 is an explanatory view showing an occlusion end face as viewed in D in FIG. 12;
FIG. 14 is an explanatory view showing the bite end face viewed from E in FIG. 12;
FIG. 15 is an explanatory view of an occlusal surface showing a complete denture prosthesis Y, wherein (a) shows a maxillary completed denture Y1 using a maxillary natural facet molar block element X1, and (b) shows a mandibular natural facet molar block. The mandibular completed denture Y2 using the element X2.
FIG. 16 is an explanatory side view showing the relationship between the prior art articulator Z and the living body (cephalo display).
FIG. 17 is an explanatory side view showing an oral cone (including a speed center) in a cusp fitting position.
FIG. 18 is an explanatory side view showing the configuration of the prior art articulator Z.
FIG. 19 is an explanatory side view showing how to use the prior art articulator Z (operation for reproducing a physiological occlusion state).
FIG. 20 is a three-dimensional analysis diagram of jaw movement showing harmony between occlusal surface morphology and jaw movement locus.
FIG. 21 is an illustration showing the relationship between the occlusal plane (reference plane), the loudspeaker and the posterior axis of motion (posterior guiding plane), as well as the smile line in which the buccal cusp of the anterior and premolar teeth is adjusted in a standard or ideal manner. FIG.
[Explanation of symbols]
X Artificial molar unit X1 Upper face natural facet molar block element 14 1st premolar (maxillary 4th)
15 2nd premolar (maxillary 5th)
16 1st molars (maxillary 6th)
17 2nd molars (maxillary 7th)
P Maxillary occlusal plane (reference plane)
P1 first premolar buccal cusp P2 second premolar lingual cusp P3 second premolar buccal cusp P4 first molar lingual cuspid X2 mandibular natural facet molar block element X2a molar 1 block X2b Premolar 1 block 24 1st premolar (4th lower jaw)
25 2nd premolars (5th lower jaw)
26 1st molar (lower jaw number 6)
27 Second molars (7th lower jaw)
XX Interdental joint Y Complete denture prosthesis Y1 Maxillary completed denture Y2 Mandibular completed denture 8 Occlusal flat plate N Maxillary natural dentition (master model)
Z dental articulator

Claims (4)

In prosthetic artificial molars for denture production,
The upper and lower jaw molars are reconstructed as natural facet molars consisting of artificial molars with occlusal relationships approximating natural teeth and facets caused by physiological abrasion , and combining them to form a set An artificial molar unit that is capable of reproducing a physiological occlusal state in all directions of movement having an abrasion form for stabilizing a denture, in harmony with jaw movement including formation of an adjusted smile line,
Using the natural dentition as a master model, upper and lower jaw molars that reproduce the abrasion pattern based on the facet and the arranging state based on the loudspeaker are individually shaped and block-arranged. An artificial molar unit comprising a natural facet molar block element. The natural facet molar block element for the maxilla is composed of four large molars as one block, the buccal cusp of the first premolar (P1), the lingual and buccal cusps of the second premolar (P2, P3), and the 1 The level formed so that the plane including the lingual cusp of the molar (P4) is the maxillary occlusal plane (reference plane),
The natural facet molar block element for the lower jaw comprises two molars as one block and two premolars as one block, respectively.
2. The artificial molar unit according to claim 1, wherein the prosthesis is prepared by placing the natural facet molar block element for maxilla on an occlusal plane plate and fixing it with wax to the maxillary base floor with the reference planes aligned. The artificial molar unit according to claim 1, wherein the master model of the natural dentition is for a complete denture prosthesis and has a facet with a deployment angle of 140 to 150 °. In complete denture prostheses,
A basic floor for artificial tooth arrangement is prepared by a conventional method, and after adjusting the alignment of the front teeth on the occlusal plane plate of the articulator, the reference surface of the natural facet molar block element for the upper jaw of the artificial molar unit according to claim 3 is occlusal flat. 4. The artificial prosthesis according to claim 3, wherein the prosthesis is fixed to the upper floor of the upper jaw with non-shrinkable wax while being fitted to the face plate, and the gingival part is waxed up to prepare a prosthesis for the upper jaw. A complete denture prosthesis obtained by fitting a natural facet molar block element for a lower jaw of a molar unit with a non-shrinkable wax and waxing up a gingival part to create a lower denture prosthesis, A complete denture prosthesis characterized by having properties.
<1> It is shaped by reproducing the abrasion pattern based on the facet of the natural dentition and the arrangement state based on the loudspeaker, and is reconfigured to have an occlusal relationship similar to the natural teeth. <2> Buccal cusp of the first premolar (P1), lingual and buccal cusps of the second premolar (P2, P3), and lingual cusp of the first molar of the natural facet molar block element for the maxilla ( The level is formed so that the plane containing P4) is the maxillary occlusal plane (reference plane).
<3> The physiological occlusal state in all directions of movement can be reproduced in harmony with the jaw movement and having an abrasion form for stabilizing the denture, and grinding adjustment is unnecessary.
<4> The buccal cusps of the anterior teeth and the premolars are arranged on the standardized smile line.

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