JP2017046727A - Maxilla reference denture base, maxilla reference denture, denture fabrication kit, and denture fabrication method using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ready-made maxilla reference denture base or a maxilla reference denture which is adaptable to many people with an edentulous jaw and allows the fabrication of a denture with excellent sealing properties and wearing properties in a short time.SOLUTION: A maxilla reference denture base or a maxilla reference denture is configured such that when a lenth of a line segment PQ connecting a point P corresponding to a left-side pterygomaxillary notch at a base rear edge and a point Q corresponding to a right-side pterygomaxillary notch is 1, a length of a line segment OM connecting a point O corresponding to a frenulum of an upper lip at the exact middle of a lip-side base edge and a middle point M of the line segment PQ is 0.76 to 0.98, and a line segment NM connecting an intersection point N of a perpendicular line to the line segment PQ from the middle point M and the base rear edge, and the middle point N is 0.05 to 0.10. By using the maxilla reference denture base or the maxilla reference denture, the denture which is adaptable to many people with an edentulous jaw and shows excellent sealing properties and wearing properties can be fabricated in a short time.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a ready-made palatal maxillary standard denture base and a palatal maxillary standard denture having a predetermined shape. Moreover, it is related with the denture preparation kit comprised including this palatal upper jaw standard denture base and a palatal upper jaw standard denture. Furthermore, it is related with the denture preparation method using this denture preparation kit.

Conventionally, dentures are mainly produced by the following procedure.
(1) Taking an impression in the patient's mouth using an impression material.
(2) A plaster model is produced using the impression.
(3) Put the occlusal floor on the patient and obtain the occlusion.
(4) Artificial teeth are arranged on the occlusal floor to produce wax dentures.
(5) Trial the wax denture to the patient and adjust the occlusion.
(6) A wax denture is buried in gypsum to produce a mold.
(7) Resin is poured into a mold and cured to prepare a denture.

  In this way, the dentures are manually manufactured one by one in accordance with the shape of the patient's oral cavity, requiring a lot of time, and the burden on the dental clinic, dental laboratory, and patient is great. In addition, since this method for producing a denture has a plurality of transfer steps, shape errors are likely to occur. Furthermore, the quality is likely to vary depending on the skills of the dentist and dental technician.

  Patent Document 1 discloses a method for producing a denture using a denture base mass-produced using a mold or the like. Patent Document 2 discloses a method for producing a denture using a prosthetic denture precursor in which at least one artificial tooth is arranged on a denture base member made of a photopolymerizable composition that is plastic. Although these methods can simplify some processes, it is still difficult to say that they are sufficiently simplified because it is still necessary to produce a plaster model. In addition, denture bases made based on the oral shape of edentulous jaws are difficult to mass-produce by predetermining the shape of the denture base because the alveolar crest absorption varies from patient to patient.

  Conventional denture preparation methods are generally prepared based on the alveolar crest line law, but as mentioned above, the denture preparation method is problematic. Furthermore, in the present age when patients are aging, dentures produced by the above method have difficulty in obtaining a normal occlusion when the alveolar bone is remarkably retracted, causing problems such as cross bite. Therefore, in recent years, a denture preparation method based on the denture space theory has been proposed in which the denture shape is determined in accordance with the muscle pressure neutral zone where the dental arch was supposed to exist at the time of the toothed jaw. However, it takes a lot of time to learn a denture preparation method based on the denture space theory. Moreover, even if it is a denture production method based on denture space theory, the denture production method itself is as complicated as before. Therefore, there is a demand for a denture based on the denture space theory that can be produced by a simple method.

  In the conventional standard denture base, the shape of the rear edge of the floor is not defined, and the shape is set for each patient by appropriately performing cutting or the like in consideration of the wearability and the sealability. Therefore, in order to improve the mounting property while maintaining the sealing property of the floor rear edge, a long time is required for cutting or the like.

Japanese Patent Laid-Open No. 06-63065 JP 05-192353 A

  An object of the present invention is a ready-made maxillary standard denture base or maxillary standard denture that can be adapted to many edentulous jaws, simplifying the denture preparation process and shortening the denture preparation time, An object of the present invention is to provide a maxillary standard denture base or a maxillary standard denture that has both high sealing performance and wearability. Another object of the present invention is to provide a maxillary standard denture base or a maxillary standard denture in which artificial teeth are arranged in advance at predetermined positions.

  In order to solve the above-mentioned problems, the present inventors have conceived that the shape of the denture base is determined based on the oral shape of the toothed and edentulous people, and the ready-made denture base is produced based on the shape. did. And when the standard denture base of the predetermined shape was produced by this method, it discovered that it was applicable to many edentulous people. Moreover, it discovered that both mounting property and sealing property could be improved by making the floor rear edge part of a maxillary reference | standard denture base into a predetermined shape. Furthermore, it has been found that the denture preparation process can be simplified while maintaining a high precision by arranging artificial teeth in a predetermined position of the reference denture base. Based on these findings, the present invention has been completed.

  The present invention for solving the above problems is as described below. In addition, in this-application specification, a reference | standard denture base is a denture base which is a ready-made denture base and all the artificial teeth are not arranged. Unlike conventional denture bases that are individually made by taking an impression of the patient's oral shape, as in the past, the standard denture base of the present invention statistically determines the oral shape of a dentist. It is produced based on the denture space theory. Therefore, if several kinds of reference denture bases are prepared, dentures having a high matching rate can be produced for almost all edentulous people by building up the lining material and arranging artificial teeth. Furthermore, it can be adapted to patients with difficult cases with severe absorption of the alveolar crest. In the present specification, the entire dentition means a dentition including 14 teeth from the left second molar to the right second molar.

[1] When the length of a line segment PQ connecting the point P corresponding to the left wing protrusion maxillary notch on the floor trailing edge and the point Q corresponding to the right wing protrusion maxillary notch is 1,
The length of the line segment OM connecting the point O corresponding to the upper lip band in the middle of the lip side floor edge and the midpoint M of the line segment PQ is 0.76 to 0.98, and the line from the midpoint M A maxillary standard denture base, characterized in that the length of a line segment NM connecting an intersection N and a midpoint M between a perpendicular line to the segment PQ and the floor trailing edge is 0.05 to 0.10.

  In the invention described in [1] above, the shape of the upper standard denture base is limited to a predetermined range. In particular, the shape of the floor rear edge is limited to a predetermined range.

[2] The upper standard denture base is
Each point that divides the line segment OP connecting the point O and the point P into four equal parts is defined as a point P1, a point P2, and a point P3 from the point O side.
Points D1, D2 and D3 are points where the vertical lines from the points P1, P2 and P3 on the line segment OP intersect the left cheek floor edge,
Each point that divides the line segment OQ connecting the point O and the point Q into four equal parts is defined as a point Q1, a point Q2, and a point Q3 from the point O side,
Points E1, E2 and E3 are points where the vertical lines from the points Q1, Q2 and Q3 on the line segment OQ intersect with the right cheek floor edge,
When the length of the line segment PQ is 1,
The lengths of the line segment P1D1 and the line segment Q1E1 are 0.11 to 0.36, respectively.
The lengths of the line segment P2D2 and the line segment Q2E2 are 0.19 to 0.45, respectively.
The lengths of the line segment P3D3 and the line segment Q3E3 are 0.16 to 0.45, respectively.
The maxillary standard denture base according to [1].

  In the invention described in [2] above, the shape of the upper standard denture base is further limited.

  [3] The maxillary reference denture base according to claim 1 or 2, wherein at least one artificial tooth is arranged in advance.

[4] The upper standard denture base is
When the length of the line segment PQ is 1,
On the vertical line to the line segment OP connecting the point S6 on the line segment OP and at a distance of 0.74 from the point O and the left cheek floor edge, 0. 0 from the point S6 to the left cheek floor edge side. A central fovea of the left first maxillary molar in a circle of radius 0.14 having a central point at a distance of 11;
On the line perpendicular to the line segment OQ connecting the point T6 on the line segment OQ and at a distance of 0.74 from the point O to the right cheek floor edge, 0. 0 from the point T6 to the right cheek floor edge side. The maxillary standard denture base according to [3], having a central fovea of the right upper first molar in a circle having a radius of 0.14 and having a central point at a distance of 11.

  In the maxillary standard denture base described in [4] above, at least the arrangement positions of the maxillary first molars (No. 6) are limited to a predetermined range.

[5] The upper standard denture base is
When the length of the line segment PQ is 1,
The maxillary standard denture base according to [3], having an interdental portion between the left maxillary central incisor and the right maxillary central incisor at a distance of 0.76 to 1.14 on the lip side from the point M on the straight line OM .

  In the maxillary standard denture base described in [5] above, at least the arrangement positions of the maxillary central incisors (No. 1) are limited to a predetermined range.

[6] The upper standard denture base is
When the length of the line segment PQ is 1,
On the vertical line to the line segment OP connecting the point S3 on the line segment OP and at a distance of 0.30 from the point O and the left cheek floor edge, 0. 0 from the point S3 to the left cheek floor edge side. A left maxillary canine point in a circle of radius 0.12 with a center point at a distance of 25;
On the vertical line to the line segment OQ connecting the point T3 on the line segment OQ at a distance of 0.30 from the point O and the right cheek floor edge, 0. 0 from the point T3 to the right cheek floor edge side. The maxillary reference denture base according to [3], which has a right upper canine cusp within a circle having a radius of 0.12 having a center point at a distance of 25.

  In the upper standard denture base described in [6] above, at least the arrangement position of the upper canine teeth (No. 3) is limited to a predetermined range.

  [7] A maxillary standard denture in which artificial teeth of all dentitions are arranged in advance on the maxillary standard denture base according to any one of [1] to [6].

[8] When the length of the line segment pq connecting the point p corresponding to the left posterior ridge protrusion and the point q corresponding to the right posterior ridge protrusion on the floor rear edge is 1,
Mandibular reference characterized in that the length of the line segment om connecting the point o corresponding to the lower lip strip in the middle of the labial floor edge and the midpoint m of the line segment pq is 0.76 to 0.94 A denture base,
The maxillary standard denture base or maxillary standard denture according to any one of [1] to [7],
A denture preparation kit comprising:

  The invention described in [8] above is a denture preparation kit comprising a lower standard denture base of a predetermined shape and the upper standard denture base or upper standard denture of the present invention.

[9] The mandibular reference denture base is
The points that divide line segment op connecting point o and point p into four equal parts are point p1, point p2, and point p3 from point o, and are perpendicular to points p1, p2, and p3 on line segment op. The points where the line intersects the left cheek floor edge are point d1, point d2, and point d3,
The points that divide the line segment oq connecting the point o and the point q into four equal parts are the point q1, the point q2, and the point q3 from the point o side, and are perpendicular to the points q1, q2, and q3 on the line segment oq. The points where the line intersects the right cheek floor edge are point e1, point e2, and point e3,
When the length of the line segment pq is 1,
The lengths of the line segment p1d1 and the line segment q1e1 are 0.11 to 0.32, respectively.
The lengths of the line segment p2d2 and the line segment q2e2 are 0.13 to 0.34, respectively.
The lengths of the line segment p3d3 and the line segment q3e3 are 0.14 to 0.33, respectively.
The denture preparation kit according to [8], which is a mandibular reference denture base.

[10] The mandibular reference denture base is
When the length of the line segment pq is 1,
The intersections of the straight lines d1p1, d2p2, d3p3 and e1q1, e2q2, e3q3 and the lingual floor edge are point b1, point b2, point b3 and point c1, point c2, point c3, respectively.
The lengths of the line segment d1b1 and the line segment e1c1 are 0.14 to 0.40, respectively.
The lengths of the line segment d2b2 and the line segment e2c2 are 0.19 to 0.41, respectively.
The lengths of the line segment d3b3 and the line segment e3c3 are 0.21 to 0.42, respectively.
The denture preparation kit according to [8] or [9], which is a mandibular reference denture base.

  In the inventions described in [9] and [10] above, the shape of the mandibular reference denture base is further limited.

[11] The mandibular reference denture base is
The denture preparation kit according to any one of [8] to [10], which is a mandibular reference denture base in which at least one artificial tooth is arranged in advance.

[12] The mandibular reference denture base is
When the length of the line segment pq is 1,
On the vertical line to the line segment op connecting the point s6 on the line segment op and at a distance of 0.65 from the point o to the left cheek floor edge, 0. 0 from the point s6 to the left cheek floor edge side. Having a fovea of the left lower first molar in a circle of radius 0.12 having a center point at a distance of 08;
On the line perpendicular to the line segment oq connecting the point t6 on the line segment oq and at a distance of 0.65 from the point o and the right cheek floor edge, 0. 0 from the point t6 to the right cheek floor edge side. The denture preparation kit according to [11], which is a mandibular reference denture base having a central fovea of the right lower first molar in a circle having a radius of 0.12 having a center point at a distance of 08.

  In the invention described in [12] above, at least the arrangement positions of the lower first molars (No. 6) are limited to a predetermined range.

[13] The mandibular reference denture base is
When the length of the line segment pq is 1,
[11] is a mandibular standard denture base having an interdental portion between the left mandibular central incisor and the right mandibular central incisor on the straight line om and at a distance of 0.74 to 0.94 on the lip side from the point m. The described denture preparation kit.

  In the invention described in [13] above, at least the arrangement positions of the lower central incisors (No. 1) are limited to a predetermined range.

[14] The mandibular reference denture base is
When the length of the line segment pq is 1,
On the vertical line to the line segment op connecting the point s3 on the line segment op and at a distance of 0.23 from the point o and the left cheek floor edge, 0. 0 from the point s3 to the left cheek floor edge side. Having a cusp of the left lower canine in a circle of radius 0.11 with a center point at a distance of 17;
On the vertical line to the line segment oq connecting the point t3 on the line segment oq and at a distance of 0.23 from the point o and the right cheek floor edge, 0. 0 from the point t3 to the right cheek floor edge side. The denture preparation kit according to [11], which is a mandibular reference denture base having a right mandibular canine point in a circle having a radius of 0.11 having a center point at a distance of 17.

  In the invention described in [14] above, at least the arrangement positions of the lower canine teeth (No. 3) are limited to a predetermined range.

[15] A mandibular standard denture in which artificial teeth of all dentitions are arranged in advance on the mandibular standard denture base according to any one of [8] to [14],
The maxillary standard denture base or maxillary standard denture according to any one of [1] to [7],
A denture preparation kit comprising:

  [16] The denture preparation kit according to any one of [8] to [15], further including a lining material.

  [17] A denture preparation kit comprising a plurality of upper standard denture bases according to any one of the upper standard denture bases according to any one of [1] to [6].

  The invention described in [17] is a denture preparation kit in which a plurality of sizes of upper denture base denture bases are prepared.

[18] The maxillary standard denture base according to any one of [1] to [6], wherein a plurality of maxillary standard denture bases differ in size,
A plurality of mandibular standard denture bases according to any one of [8] to [14], wherein the sizes are different from each other;
A denture preparation kit comprising:

  The invention described in [18] is a denture preparation kit in which a plurality of sizes of upper denture bases for maxilla and a plurality of sizes of standard denture bases for lower jaws are prepared.

  [19] The denture preparation kit according to [17] or [18], further including a lining material.

[20] selecting a maxillary reference denture base that matches the size of the patient's mouth from the denture preparation kit according to [17] or [19];
Arranging artificial teeth on the upper standard denture base;
Building a lining material on the upper standard denture base;
A method for producing a denture characterized by comprising:

[21] selecting a maxillary standard denture base and a mandibular standard denture base that match the size of the patient's mouth from the denture preparation kit according to [18] or [19];
Arranging artificial teeth on the upper standard denture base and the lower standard denture base;
Building up a lining material on the upper standard denture base and the lower standard denture base;
A method for producing a denture characterized by comprising:

  The inventions described in the above [20] and [21] are denture preparation methods in which, after selecting the size of the standard denture base, artificial teeth are arranged on the standard denture base, and a lining material is built up.

  [22] A denture preparation kit comprising a plurality of maxillary standard dentures according to [7], wherein the maxillary standard dentures have different sizes.

  The invention described in [22] is a denture preparation kit in which a plurality of sizes of standard dentures for maxilla are prepared.

[23] The upper standard denture according to [7], wherein the upper standard denture has different sizes,
A plurality of mandibular standard dentures different in size, the mandibular standard dentures according to [15],
A denture preparation kit comprising:

  The invention described in [23] is a denture preparation kit in which a plurality of sizes of standard dentures for the upper jaw and a plurality of sizes of standard dentures for the lower jaw are prepared.

  [24] The denture preparation kit according to [22] or [23], further including a lining material.

[25] A step of selecting an upper reference denture that matches the size of the mouth of the patient from the denture preparation kit according to [22] or [24],
Laying a lining material on the upper standard denture;
A method for producing a denture characterized by comprising:

[26] selecting a maxillary standard denture and a mandibular standard denture that match the size of the patient's mouth from the denture preparation kit according to [23] or [24];
Laying a lining material on the upper standard denture and the lower standard denture;
A method for producing a denture characterized by comprising:

  The inventions described in the above [25] and [26] are denture preparation methods for building up the lining material after selecting the size of the reference denture.

  The maxillary standard denture base and the maxillary standard denture of the present invention have a predetermined shape. The upper standard denture base and the upper standard denture can be easily adapted to the oral shape of the patient by building up the lining material. That is, the use of a pre-made standard denture base or standard denture makes it possible to shorten the preparation time of the denture. In particular, the maxillary standard denture base and the maxillary standard denture of the present invention have a predetermined shape at the rear edge of the floor, so that it is possible to shorten the time required to produce a denture with high sealing performance and wearability. it can.

  In the reference denture base of the present invention in which a part of the artificial teeth is arranged in advance, the arrangement time of the artificial teeth is shortened. The standard denture of the present invention in which all of the artificial teeth are arranged in advance can be easily fabricated by building up the backing material. In other words, in the conventional denture preparation process, a pre-made standard denture base or standard denture is used, and a part or all of the artificial teeth are arranged in advance, thereby greatly reducing the preparation time of the denture. Can do. Thereby, the burden of a dentist, a dental technician, and a patient can be reduced significantly.

  Since the standard denture base or standard denture of the present invention is prepared based on the denture space theory by statistically determining the oral shape of the toothed jaw, if several types of standard denture base or standard denture are prepared, A denture with a high precision can be produced for almost all patients. It can also be adapted to patients with difficult cases with severe alveolar absorption.

FIG. 1 is an explanatory view showing a state in which a denture is mounted on a patient. FIG. 2 is a plan view showing the shape of the upper standard denture base. FIG. 3 is a plan view showing the positions of the artificial teeth arranged on the upper standard denture base. FIG. 4 is a plan view showing an example of an upper denture. FIG. 5 is a plan view showing the shape of the mandibular reference denture base. FIG. 6 is a plan view showing the positions of the artificial teeth arranged in the mandibular reference denture base. FIG. 7 is a plan view showing an example of a lower denture.

  Hereinafter, the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an explanatory view showing a state in which a denture produced by the denture making kit of the present invention is attached to a patient. In FIG. 1, 100 is an upper standard denture base and 200 is a lower standard denture base (hereinafter, these are also simply referred to as “standard denture base”). Reference numeral 101 denotes an artificial tooth. When all the dentitions are arranged on the reference denture base, the denture is completed.

  In FIG. 1, point O is a point corresponding to the upper lip band corresponding to the middle of the lip side floor edge, and point P is a point corresponding to the left wing protrusion maxillary notch of the floor rear edge. The left buccal floor edge 50 of the upper standard denture base 100 has points D1 to D3 (described later). The point o is a point corresponding to the lower lip band corresponding to the center of the lip side floor edge. The point p is a point corresponding to the left posterior bulge on the rear edge of the floor. The left buccal floor edge 52 of the mandibular reference denture base 200 has points d1 to d3 (described later). In the reference denture base of the present invention, the relative positional relationship between these points is within a predetermined range.

(Maxillary standard denture base)
FIG. 2 is a plan view showing an example of the shape of the upper standard denture base 100 of the present invention. In FIG. 2, the point O is a point corresponding to the upper lip band which is the middle of the lip side floor edge. Point P is a point corresponding to the left wing protrusion maxillary notch on the floor trailing edge, and point Q is a point corresponding to the right wing protrusion maxillary notch on the floor trailing edge. Point M is the midpoint of line segment PQ connecting points P and Q. In this reference denture base, when the length of the line segment PQ is 1, the length of the line segment OM connecting the point O and the point M is in the range of 0.76 to 0.98. It is preferably in the range of 0.93, and more preferably in the range of 0.86 to 0.88. The maxillary standard denture base 100 having this shape can be adapted to many edentulous people by laying a lining material or the like on the entire mucosal contact surface of the denture base. Note that the left and right sides of the upper standard denture base are left and right when attached to the patient, and are reversed to the right and left on the paper.

  In FIG. 2, a point N is a point corresponding to the floor trailing edge on the line segment OM, and is an intersection of a vertical line from the middle point M to the line segment PQ and the floor trailing edge. That is, a line passing through the middle point M and orthogonal to the line segment PQ intersects the floor rear edge. The length of the line segment NM is preferably 0.05 to 0.10, more preferably 0.06 to 0.09. This shape is a shape in which the center portion is cut with focus while the both ends of the floor rear edge of the denture base remain. By forming the denture base in this shape, the wearability can be improved while maintaining the sealing property of the floor rear edge. If it is less than 0.05, it may be necessary to greatly cut the floor rear edge portion in order to improve the wearability, and the denture preparation time becomes long. On the other hand, when it exceeds 0.10, the sealing property of a floor rear edge part falls.

  In FIG. 2, points P1 to P3 are points that divide the line segment OP into four equal parts. That is, the lengths of the line segment OP1, the line segment P1P2, the line segment P2P3, and the line segment P3P are equal. Points D <b> 1 to D <b> 3 are points where a vertical line with respect to the line segment OP from each of the points P <b> 1 to P <b> 3 intersects the left cheek floor edge 50. Points Q1 to Q3 are points that divide the line segment OQ into four equal parts. That is, the lengths of the line segment OQ1, the line segment Q1Q2, the line segment Q2Q3, and the line segment Q3Q are equal. Points E1 to E3 are points where a vertical line with respect to the line segment OQ from each of the points Q1 to Q3 intersects the right cheek floor edge 51.

  In the upper standard denture base of the present invention, when the length of the line segment PQ is 1, the lengths of the line segment P1D1 and the line segment Q1E1 are preferably in the range of 0.11 to 0.36, respectively. The range of 0.16 to 0.31 is more preferable, and the range of 0.21 to 0.26 is particularly preferable. The lengths of the line segment P2D2 and the line segment Q2E2 are each preferably in the range of 0.19 to 0.45, more preferably in the range of 0.24 to 0.40, and 0.29 to A range of 0.35 is particularly preferable. Furthermore, the lengths of the line segment P3D3 and the line segment Q3E3 are each preferably in the range of 0.16 to 0.45, more preferably in the range of 0.21 to 0.40, and 0.26 to A range of 0.35 is particularly preferable. The maxillary standard denture base having this shape can be adapted to an edentulous person with a higher precision.

  In the upper standard denture base of the present invention, it is preferable that at least one artificial tooth is arranged in advance. When artificial teeth are arranged in advance, other teeth are formed so as to form a dental arch of any one of a square, a banded circle, a banded circle, and a banded V shape according to the Thompson classification standard based on the artificial teeth. By arranging the rows, the arrangement time of the artificial teeth can be shortened. The upper reference denture base of the present invention may have a mark or a recess for arranging artificial teeth.

  FIG. 3 is an explanatory diagram showing the positions of the artificial teeth arranged on the upper standard denture base of the present invention. FIG. 4 is a plan view showing an example of an upper standard denture in which all artificial teeth are arranged on the upper standard denture base of the present invention. In FIG. 4, 11 is a maxillary central incisor (No. 1), and 11a is an interdental portion between the left maxillary central incisor and the right maxillary central incisor. 12 is a maxillary incisor (No. 2), and 12a is a mesial angle incision edge of the maxillary incisor. Reference numeral 13 denotes a maxillary canine (No. 3), and reference numeral 13a denotes a peak of the maxillary canine. Reference numeral 14 denotes an upper first premolar (No. 4), and reference numeral 14a denotes an intersection of a central groove and a central occlusal ridge in the upper first premolar. 15 is a maxillary second premolar (No. 5), and 15a is an intersection of a central groove and a central occlusal ridge in the maxillary second premolar. 16 is the maxillary first molar (No. 6), and 16a is the central fovea of the maxillary first molar. 17 is a maxillary second molar (No. 7), and 17a is a central fovea of the maxillary second molar.

(Arrangement of artificial teeth in the upper standard denture base)
(A) Arrangement position of left first maxillary first molar (upper left 6th) The point S6 is on the line OP with the length of the line PQ being 1, and is at a distance of 0.74 from the point O. The point T6 has a length of the line segment PQ of 1, is on the line segment OQ, and is at a distance of 0.74 from the point O. The left upper first molar is on a line perpendicular to the line segment OP from the point S6 to the left buccal floor edge 50 and has a center point at a distance of 0.11 from the point S6 to the left buccal floor edge 50. It is preferably arranged so that the fovea of the left upper first molar is located within a circle with a radius of 0.14, and particularly preferably within a circle with a radius of 0.08.

(B) Arrangement position of right upper first molar (upper right No. 6) Similarly, the right upper first molar is on a line perpendicular to the line segment OQ from the point T6 to the right buccal floor edge 51 side. It is preferable that the central fovea of the right upper first molar is located in a circle having a radius of 0.14 having a center point at a distance of 0.11 from T6 to the right cheek floor edge 51 side, It is particularly preferable to be within a circle with a radius of 0.08.

(C) Arrangement position of maxillary central incisors (upper no. 1) The maxillary central incisors are on the straight line OM and at a distance of 0.76 to 1.14 from the point M to the lip side on the left upper central incisors and the right side It arranges so that it may have an interdental part with a maxillary central incisor.
The left maxillary central incisor has a length of the line segment PQ of 1, the circumference is in contact with a point U1 on the straight line OM and a distance of 0.76 to 1.14 from the point M to the lip side. Arranged so that the incision nodule at the center of the left central incisor is located in a circle having a diameter of 0.17 on the straight line OM perpendicular to the straight line OM and having a center point on the left cheek floor edge 50 side. The distance from the point M to the point U1 is more preferably 0.86 to 1.04, and particularly preferably 0.91 to 0.99.
Similarly, the right middle incisor is a straight line that is on the straight line OM and is in contact with the point U1 at a distance of 0.76 to 1.14 from the point M to the lip side, and is perpendicular to the straight line OM at the point U1. It is preferably arranged so that the central incisal nodule of the right middle incisor is located in a circle having a diameter of 0.17 and having a center point on the right cheek floor edge 51 side. The point U1 is more preferably a distance of 0.86 to 1.04, and particularly preferably a distance of 0.91 to 0.99. Moreover, it is preferable that the left upper central incisor and the right upper central incisor are arranged symmetrically with respect to the straight line OM.

(D) Arrangement position of left upper canine tooth (upper left third) The point S3 is on the line OP with the length of the line PQ being 1, and is at a distance of 0.30 from the point O. The point T3 has a length of the line segment PQ of 1, is on the line segment OQ, and is at a distance of 0.30 from the point O. The left maxillary canine is on a line perpendicular to the line segment OP from the point S3 to the left buccal floor edge 50, and has a radius of 0. 0 with a center point at a distance of 0.25 from the point S3 to the left buccal floor edge 50. It is preferable that the left maxillary canine cusp is arranged so as to be located within 12 circles, and particularly preferably within a circle having a radius of 0.07.

(E) Arrangement position of right upper canine (upper right third) Similarly, the right upper canine is on the vertical line with respect to the line segment OQ from the point T3 to the right buccal floor edge 51 and from the point T3 to the right buccal floor It is preferably arranged so that the tip of the right maxillary canine is located in a circle with a radius of 0.12 having a center point at a distance of 0.25 on the edge 51 side, and within the circle with a radius of 0.07 It is particularly preferred.

(F) Arrangement position of left first maxillary first premolar (upper left 4th point) The point S4 is on the line segment OP with the length of the line segment PQ being 1, and is at a distance of 0.44 from the point O. The point T4 has a length of the line segment PQ of 1, is on the line segment OQ, and is at a distance of 0.44 from the point O. The left upper first premolar is on the vertical line with respect to the line segment OP from the point S4 to the left buccal floor edge 50 and has a center point at a distance of 0.24 from the point S4 to the left buccal floor edge 50. It is preferably arranged so that the intersection of the central groove and the central occlusal ridge is located within a circle with a radius of 0.13, and particularly preferably within a circle with a radius of 0.08.

(G) Arrangement position of right upper first premolar (upper right 4) Similarly, the right upper first premolar is on the vertical line with respect to the line segment OQ from the point T4 to the right buccal floor edge 51 side. Arranged so that the intersection of the central groove and the central occlusal ridge is located within a circle with a radius of 0.13 having a central point at a distance of 0.24 from T4 to the right cheek floor edge 51 side. Is preferable, and is particularly preferably within a circle having a radius of 0.08.

(H) Arrangement position of left upper maxillary second premolar (upper left fifth) Point S5 has a length of line PQ of 1, is on line OP, and is a distance of 0.58 from point O. The point T5 has a length of the line segment PQ of 1, is on the line segment OQ, and is at a distance of 0.58 from the point O. The left upper maxillary second premolar is on the vertical line with respect to the line segment OP from the point S5 to the left buccal floor edge 50 and has a center point at a distance of 0.19 from the point S5 to the left buccal floor edge 50. It is preferably arranged so that the intersection of the central groove and the central occlusal ridge is located within a circle with a radius of 0.13, and particularly preferably within a circle with a radius of 0.08.

(I) Arrangement position of right upper second premolar (upper right No. 5) Similarly, the right upper second premolar is on the vertical line with respect to the line segment OQ from the point T5 to the right buccal floor edge 51 side. Arranged so that the intersection of the central groove and the central occlusal ridge is located within a circle with a radius of 0.13 having a central point at a distance of 0.19 from T5 to the right cheek floor edge 51 side. Is preferable, and is particularly preferably within a circle having a radius of 0.08.

  The point S7 has a length of the line segment PQ of 1, is on the line segment OP, and is at a distance of 0.90 from the point O. The point T7 has a length of the line segment PQ of 1, is on the line segment OQ, and is at a distance of 0.90 from the point O. The left upper maxillary second molar is on the vertical line with respect to the line segment OP from the point S7 to the left buccal floor edge 50 and has a center point at a distance of 0.08 from the point S7 to the left buccal floor edge 50. It is preferable that the central fovea is arranged in a circle having a radius of 0.12, and it is particularly preferable that the fovea is in a circle having a radius of 0.08.

(K) Arrangement position of right maxillary second molar (upper right No. 7) Similarly, the right maxillary second molar is on the vertical line with respect to the line segment OQ from the point T7 to the right buccal floor edge 51 side. It is preferably arranged so that the fovea is located within a circle with a radius of 0.12 having a center point at a distance of 0.08 from the T7 to the right cheek floor edge 51 side. It is particularly preferred that

(L) Arrangement position of left maxillary incisor (upper left second) The point S2 is on the line OP with the length of the line PQ being 1, and is 0.12 from the point O. The point T2 has a length of the line segment PQ of 1, is on the line segment OQ, and is a distance of 0.12 from the point O. The left maxillary incisor is on a line perpendicular to the line segment OP from the point S2 to the left cheek floor edge 50 and has a center point at a distance of 0.14 from the point S2 to the left cheek floor edge 50. It is preferably arranged so that the mesial corner cutting edge is located within a circle of 0.11, and particularly preferably within a circle of radius 0.08.

(M) Arrangement position of right maxillary incisor (upper right No. 2) Similarly, the right maxillary incisor is on the vertical line from the point T2 to the line segment OQ from the point T2 to the right cheek floor edge 51 side. It is preferably arranged so that its mesial corner cut edge is located in a circle having a radius of 0.11 and having a center point at a distance of 0.14 on the right cheek floor edge 51 side. It is particularly preferable that it is within a circle.

(Denture preparation kit)
The denture preparation kit of the present invention includes at least the upper standard denture base or the upper standard denture of the present invention, and may include a lining material or an artificial tooth. Moreover, it is preferable that the denture preparation kit of this invention contains the lower jaw standard denture base or the lower jaw standard denture described below.

  As for the upper standard denture base, a denture is produced by cutting the rear edge of the floor so as to match the shape of the oral cavity of the patient, building up a lining material, and arranging artificial teeth. As for the upper standard denture, the denture is produced by cutting the rear edge of the floor so as to conform to the oral shape of the patient as necessary and building up the lining material so as to conform to the oral shape of the patient. A lower denture base denture base is constructed by laying a lining material so as to match the shape of the patient's oral cavity and arranging artificial teeth. The mandibular standard denture is produced by building up a lining material so as to match the shape of the oral cavity of the patient.

  In the denture preparation kit of the present invention, it is preferable to prepare in advance a plurality of upper standard denture bases or upper standard dentures having different sizes and a plurality of lower standard denture bases or lower standard dentures having different sizes. Thereby, the adaptation rate to a patient can be raised more. The size of the upper standard denture base or upper standard denture, lower standard denture base or lower standard denture is preferably 2-10 types, more preferably 2-5 types. It is particularly preferable to prepare the types.

A method for preparing a denture using the denture preparation kit of the present invention will be described below.
First, a maxillary standard denture base or maxillary standard denture that matches the patient's oral cavity size, and a mandibular standard denture base or mandibular standard denture are selected. The selection of the reference denture base or the reference denture can be determined based on the measurement of the oral cavity size. As a method for measuring the oral cavity size, a known method can be used, and examples thereof include measurement by visual inspection and palpation, measurement of size by trial fitting of an impression tray, and the like. When the standard denture base is selected, artificial teeth are arranged on the selected maxillary standard denture base and mandibular standard denture base, respectively, and an upper denture and a mandibular denture are produced. Furthermore, a lining material is built up on each of the upper denture and the lower jaw denture to perfectly match the oral shape of the patient. A part of the floor rear edge of the upper standard denture base is cut as necessary. The arrangement of the artificial teeth of the present invention, the lining of the lining material, and the cutting of the floor rear edge may be performed in any order. The occlusion is then adjusted as needed after being tried in the patient's mouth. As a result, a denture that matches the shape of the oral cavity of the patient is produced.

(Mandibular standard denture base)
FIG. 5 is a plan view showing an example of the shape of the mandibular reference denture base 200 constituting the denture preparation kit of the present invention. In FIG. 5, the point o is a point corresponding to the lower lip band corresponding to the middle of the lip side floor edge. The point p is a point corresponding to the left posterior bulge on the floor rear edge, and the point q is a point corresponding to the right posterior ridge on the floor rear edge. Point m is the midpoint of line segment pq connecting points p and q. In the lower denture base denture base, when the length of the line segment pq is 1, the length of the line segment om connecting the point o and the point m is in the range of 0.76 to 0.94, 0.80 It is preferably in the range of ˜0.90, and more preferably in the range of 0.84 to 0.86. A mandibular standard denture base having this shape can be adapted to many edentulous people by building up the lining material.

  In FIG. 5, points p1 to p3 are points that divide the line segment op into four equal parts. That is, the lengths of the line segment op1, the line segment p1p2, the line segment p2p3, and the line segment p3p are equal. Points d <b> 1 to d <b> 3 are points where a vertical line with respect to the line segment op from each of the points p <b> 1 to p <b> 3 intersects the left cheek floor edge 52. Points q1 to q3 are points that divide the line segment oq into four equal parts. That is, the lengths of the line segment oq1, the line segment q1q2, the line segment q2q3, and the line segment q3q are equal. Points e1 to e3 are points where a vertical line with respect to the line segment oq from each of the points q1 to q3 intersects the right cheek floor edge 53.

  In the mandibular standard denture base, when the length of the line segment pq is 1, the lengths of the line segment p1d1 and the line segment q1e1 are preferably in the range of 0.11 to 0.32, respectively. A range of 0.28 is more preferable, and a range of 0.19 to 0.24 is particularly preferable. The lengths of the line segment p2d2 and the line segment q2e2 are each preferably in the range of 0.13 to 0.34, more preferably in the range of 0.17 to 0.30, A range of 0.26 is particularly preferable. Furthermore, the lengths of the line segment p3d3 and the line segment q3e3 are each preferably in the range of 0.14 to 0.33, more preferably in the range of 0.18 to 0.29. A range of 0.25 is particularly preferable. A mandibular reference denture base having this shape can be adapted to an edentulous person with a higher precision.

  In FIG. 5, points b <b> 1 to b <b> 3 are points where a vertical line with respect to the line segment op from each of the points p <b> 1 to p <b> 3 intersects the lingual floor edge. Points c1 to c3 are points where a vertical line with respect to the line segment oq from each of the points q1 to q3 intersects the lingual floor edge.

  In the mandibular standard denture base, when the length of the line segment pq is 1, the lengths of the line segment d1b1 and the line segment e1c1 are preferably in the range of 0.14 to 0.40, preferably 0.19 to A range of 0.35 is more preferable, and a range of 0.24 to 0.30 is particularly preferable. The lengths of the line segment d2b2 and the line segment e2c2 are each preferably in the range of 0.19 to 0.41, more preferably in the range of 0.24 to 0.36, and 0.29 to A range of 0.31 is particularly preferable. Further, the lengths of the line segment d3b3 and the line segment e3c3 are each preferably in the range of 0.21 to 0.42, more preferably in the range of 0.25 to 0.38, and 0.30 to 0.30. A range of 0.34 is particularly preferable. A mandibular reference denture base having this shape can be adapted to an edentulous person with an even higher precision.

  FIG. 6 is an explanatory diagram showing the positions of the artificial teeth arranged on the lower standard denture base. FIG. 7 is a plan view showing an example of a mandibular reference denture in which all artificial teeth are arranged on the mandibular reference denture base. In FIG. 7, 21 is a mandibular central incisor (No. 1), and 21a is an interdental portion between the left mandibular central incisor and the right mandibular central incisor. Reference numeral 22 denotes a mandibular incisor (No. 2), and 22a denotes a mesial angle incision edge of the mandibular incisor. Reference numeral 23 denotes a lower jaw canine (No. 3), and reference numeral 23a denotes a point of the lower jaw canine. Reference numeral 24 denotes a mandibular first premolar (No. 4), and 24a denotes an intersection of a central groove and a central occlusal ridge in the mandibular first premolar. 25 is a mandibular second premolar (No. 5), and 25a is an intersection of a central groove and a central occlusal ridge in the mandibular second premolar. Reference numeral 26 denotes a lower first molar (No. 6), and reference numeral 26a denotes a central fovea of the lower first molar. 27 is the mandibular second molar (No. 7), and 27a is the central fovea of the mandibular second molar.

(Arrangement of artificial teeth in the mandibular standard denture base)
(N) Arrangement position of left first lower first molar (lower left sixth) Point s6 has a length of line segment pq of 1, is on line segment op, and is a distance of 0.65 from point o. The point t6 has a length of the line segment pq of 1, is on the line segment oq, and is at a distance of 0.65 from the point o. The left lower first molar (6th lower left) is on a vertical line with respect to the line segment op from the point s6 to the left buccal floor edge 52 side, and is a distance of 0.08 from the point s6 to the left buccal floor edge 52 side. It is preferable that the central fovea of the left first molar is located within a circle having a center point of 0.12 and having a radius of 0.02, particularly preferably within a circle having a radius of 0.08.

(O) Arrangement position of right lower first molar (No. 6 lower right) Similarly, the right lower first molar is on the vertical line with respect to the line segment oq from the point t6 to the right buccal floor edge 53 side. It is arranged that the central fovea of the right lower first molar is located within a circle having a radius of 0.12 having a center point at a distance of 0.08 from the point t6 to the right buccal floor edge 53 side. It is particularly preferable that it is within a circle having a radius of 0.08.

(P) Arrangement position of mandibular central incisor (bottom No. 1) The mandibular central incisor is on the straight line om and at a distance of 0.74 to 0.94 from the point m to the lip side on the left mandibular central incisor and right side It arranges so that it may have an interdental part with a mandibular central incisor.
The left mandibular central incisor has a length of the line segment pq of 1, the circumference is in contact with a point u1 on the straight line om and at a distance of 0.74 to 0.94 from the point m to the lip side. Arranged so that the central incisal nodule of the left central incisor is located in a circle having a diameter of 0.12 on u1 and having a central point on the left cheek floor edge 52 side. The distance from the point m to the point u1 is more preferably 0.79 to 0.89, and particularly preferably 0.83 to 0.85.
Similarly, the right mandibular central incisor has a length of the line segment pq of 1, and the circumference is in contact with a point u1 on the straight line om and at a distance of 0.74 to 0.94 from the point m to the lip side. At the same time, the central edge of the right central incisor is located in a circle having a diameter of 0.12 which is on a straight line orthogonal to the straight line om at the point u1 and has a central point on the right cheek floor edge 53 side. Arrangement is preferred, and the distance from point m to point u1 is more preferably from 0.79 to 0.89, and particularly preferably from 0.83 to 0.85.
The left lower central incisor and the right lower central incisor are preferably arranged symmetrically with respect to the straight line om.

(Q) Arrangement position of left lower canine tooth (lower left third) The point s3 is on the line segment op with the length of the line segment pq being 1, and is at a distance of 0.23 from the point o. The point t3 has a length of the line segment pq of 1, is on the line segment oq, and is at a distance of 0.23 from the point o. The left mandibular canine is on a line perpendicular to the line op from the point s3 to the left buccal floor edge 52, and has a radius of 0. 0 with a center point at a distance of 0.17 from the point s3 to the left buccal floor edge 52. It is preferable that the left mandibular canine cusp is arranged so as to be located within the eleven circle, and particularly preferably within a circle having a radius of 0.08.

(R) Arrangement position of right mandibular canine (lower right third) Similarly, the right mandibular canine is on the vertical line with respect to the line segment oq from the point t3 to the right buccal floor edge 53 side and from the point t3 to the right buccal side It is preferable that the cusp of the right lower jaw canine is located in a circle having a radius of 0.11 having a center point at a distance of 0.17 on the floor edge 53 side, and within the circle having a radius of 0.08. It is particularly preferred that

(S) Arrangement Position of Left Lower Mandibular First Premolar (Left Lower 4th) Point s4 is on the line segment op with the length of the line segment pq being 1, and is at a distance of 0.38 from the point o. The point t4 has a length of the line segment pq of 1, is on the line segment oq, and is at a distance of 0.38 from the point o. The left lower first bicuspid is centered at a distance of 0.15 from the point s4 to the left buccal floor edge 52 on the vertical line to the line op from the point s4 to the left buccal floor edge 52 side. It is preferably arranged so that the intersection of the central groove and the central occlusal ridge is located within a circle with a radius of 0.12, and particularly preferably within a circle with a radius of 0.08.

(T) Arrangement Position of Right Lower Mandibular First Premolar (Right Lower No. 4) Similarly, the right lower first bicuspid is on the vertical line with respect to the line segment oq from the point t4 to the right buccal floor edge 53 side. Arranged so that the intersection of the central groove and the central occlusal surface ridge is located within a circle with a radius of 0.12 having a central point at a distance of 0.15 from the point t4 to the right cheek floor edge 53 side. It is particularly preferable that it is within a circle having a radius of 0.08.

(U) Arrangement Position of Left Lower Mandibular Second Premolar (No. 5 at Lower Left) Point s5 has a length of line segment pq of 1, is on line segment op, and is at a distance of 0.50 from point o. The point t5 has a length of the line segment pq of 1, is on the line segment oq, and is at a distance of 0.50 from the point o. The left mandibular second premolar has a center point at a distance of 0.14 from the point s5 to the left buccal floor edge 52 side and perpendicular to the line op to the left buccal floor edge 52 side. It is preferably arranged so that the intersection of the central groove and the central occlusal ridge is located within a circle with a radius of 0.12, and particularly preferably within a circle with a radius of 0.08.

(V) Arrangement position of right lower second premolar (lower right No. 5) Similarly, the right lower second premolar is on the vertical line with respect to the line segment oq from the point t5 to the right buccal floor edge 51 side. Arranged so that the intersection of the central groove and the central occlusal surface ridge is located within a circle having a radius of 0.12 having a central point at a distance of 0.14 from the point t5 to the right cheek floor edge 53 side. It is particularly preferable that it is within a circle having a radius of 0.08.

(W) Arrangement position of left lower second molar (left lower 7th) The point s7 is on the line op with the length of the line segment pq being 1, and is 0.82 from the point o. The point t7 has a length of the line segment pq of 1, is on the line segment oq, and is at a distance of 0.82 from the point o. The left lower mandibular second molar has a center point at a distance of 0.08 from the point s7 to the left buccal floor edge 52 side and perpendicular to the line op, and from the point s7 to the left buccal floor edge 52 side. It is preferable that the central fovea is arranged in a circle having a radius of 0.12, and it is particularly preferable that the fovea is in a circle having a radius of 0.08.

(X) Arrangement position of right lower second molar (right lower No. 7) Similarly, the right lower second molar is on the vertical line with respect to the line segment oq from the point t7 to the right buccal floor edge 53 side. It is preferably arranged so that its fovea is located within a circle with a radius of 0.12 having a center point at a distance of 0.08 from the point t7 to the right buccal floor edge 53 side. It is particularly preferable that it is within a circle.

(Y) Arrangement Position of Left Mandibular Incisor (Lower Left No. 2) Point s2 has a length of line segment pq of 1, is on line segment op, and is a distance of 0.08 from point o. The point t2 has a length of the line segment pq of 1, is on the line segment oq, and is at a distance of 0.08 from the point o. The left mandibular incisor is on a line perpendicular to the line op from the point s2 to the left buccal floor edge 52, and has a radius having a center point at a distance of 0.10 from the point s2 to the left buccal floor edge 52. It is preferably arranged so that the mesial corner cutting edge is located within a circle of 0.10, and particularly preferably within a circle of radius 0.08.

(Z) Arrangement Position of Right Mandibular Incisor (Right Bottom No. 2) Similarly, the right mandibular incisor is on the vertical line with respect to the line segment oq from the point t2 to the right cheek floor edge 53 side, and the point t2 It is preferably arranged so that the mesial corner cut edge is located in a circle with a radius of 0.10 having a center point at a distance of 0.10 on the right cheek floor edge 53 side, and a radius of 0.08. It is particularly preferable that it is within the circle.

  As the material for the standard denture base in the present invention, known materials can be used without any limitation. Specifically, at least from a homopolymer of methyl (meth) acrylate, ethyl (meth) acrylate, isopropyl (meth) acrylate, n-propyl (meth) acrylate, butyl (meth) acrylate or a copolymer thereof. One selected poly (meth) acrylate resin, polyolefin resin (eg, polypropylene), polyamide resin (eg, nylon 66 (registered trademark)), polyester resin (eg, polycarbonate), polyether resin ( For example, polyacetal, polysulfone), polynitrile resin (for example, polyacrylonitrile), polyvinyl resin (for example, polyvinyl acetate), cellulose resin (for example, cellulose acetate), fluorine resin (for example, polychlorofluoroethylene) Emissions), imide-based resins (e.g., an aromatic polyimide), and the like.

  The reference denture base in the present invention may contain a filler in order to improve the strength of the denture base. The filler may be an organic filler or an inorganic filler. Moreover, you may use the granular organic-inorganic composite filler obtained by adding a polymerizable monomer to an inorganic filler beforehand, making it paste-form, polymerizing, and grind | pulverizing.

  A part of the reference denture base in the present invention may be formed of metal.

  The standard denture base in the present invention can be manufactured by a known molding method. Examples include injection molding and compression molding.

As the lining material, known materials can be used without any limitation. For example, the above-mentioned poly (meth) acrylate resin described as a standard denture base material, polyolefin resin, polyamide resin, polyester resin, polyether resin, polynitrile resin, polyvinyl resin, cellulose resin, Fluorine resin, imide resin, silicon resin and the like can be mentioned.
A known material may be appropriately selected as the backing material according to the purpose of use. For example, when the patient himself operates and uses it for a relatively short period of 1 to several days, the back is a powdery, creamy, or sealed denture base fixing glue (so-called denture stabilizer). Equipment can be selected. Moreover, it is also possible to select a dental mucosa adjusting material, a soft lining material, and a hard lining material to be operated by a dentist as the lining material. When the oral mucosa has ulcers or inflammation and is used until the oral mucosa is restored to a healthy state while alleviating pain, a lining material having a durometer A hardness of 55 or less (dental mucosa conditioning material and soft Lining material) can be selected. Usually, a material used for one to several weeks is a dental mucosa-adjusting material, and a material used for a long period of 6 months or more is a soft lining material. The physical properties of both the dental mucosa adjusting material and the soft lining material are defined by JIS standards. Furthermore, when it is desired to bond more firmly and improve durability, a hard lining material having a Knoop hardness of 7 Hk or more (JIST6521 (hard lining material for denture base)) can be selected.

  As the artificial tooth in the present invention, a known artificial tooth made of resin or ceramic can be used. Examples of resin-made artificial teeth include the above-mentioned poly (meth) acrylate resins, polyolefin resins, polyamide resins, polyester resins, polyether resins, polynitrile resins, polyvinyl resins, cellulose resins, and fluorine resins. Examples include artificial teeth made of resin, imide resin, silicon resin and the like. As the artificial tooth, a connected artificial tooth in which two or more artificial teeth are connected and integrated can be used. As a method for fixing the artificial tooth, conventionally known methods such as fitting and adhesion can be used without any limitation.

(Fit rate)
In this example, the fitting rate was evaluated based on the ratio of the number of fitting models when the standard denture base was lined up and trial fit to 20 kinds of edentulous full jaw models having different shapes.

(Array time)
In this example, the arrangement time is 100% when arranging the artificial teeth of the entire dentition when producing a custom-made denture (conventional method) in the reference example. Evaluation was based on the percentage of time required to arrange the artificial teeth.

(Occlusal adjustment time)
In this embodiment, the occlusal adjustment time is 100%, which is required to adjust the occlusion to the standard denture base of each embodiment, when making a custom denture (reference example). The percentage of time spent was evaluated.

(Floor edge trimming time)
In this embodiment, the floor trailing edge cutting time is 100% of the floor trailing edge cutting time required for producing a custom-made denture (reference example), and the floor trailing edge cutting of the reference denture base of each embodiment is performed. Evaluation was made based on the ratio of time required for taking out.

(Example 1-7, Comparative Example 1-2)
An upper standard denture base of the shape shown in Table 1 was prepared, and the precision, arrangement time, occlusal adjustment time, and floor trailing edge cutting time were evaluated. The evaluation results are shown in Table 1. The shape of the denture is symmetrical.

(Example 8-27)
Mandibular standard denture bases with the shapes shown in Table 2 were prepared and evaluated for precision, alignment time, occlusal adjustment time, and floor trailing edge cutting time. The evaluation results are shown in Table 2. The shape of the denture is symmetrical.

In the table, No. 1 is a central incisor, No. 3 is a mandibular canine, and No. 6 is a first molar. In the table, “0” means that the fovea or the tip of the artificial tooth is arranged at the center in the predetermined circle defined in the present application. In the case of the maxillary central incisor, “0.95” means the incision of the central incisor at the center in two predetermined circles that touch the point U1 at a distance of 0.95 from the point M on the straight line OM. It means that the edge center is arranged. In the case of the mandibular central incisor, “0.84” means that the central incisor is in the center of the two predetermined circles that touch the point u1 at a distance of 0.84 from the point m to the lip side on the straight line om. It means that the edge center is arranged.

DESCRIPTION OF SYMBOLS 11 ... Maxilla central incisor 11a ... Interproximal part of left maxillary central incisor and right maxillary central incisor 12 ... Maxilla side incisor 12a ... Concentric corner cut edge 13 ... Maxilla Canine teeth 13a ... Apex 14 ... Maxillary first premolar 14a ... Intersection of central groove and central occlusal ridge 15 ... Maxillary second premolar 15a ... Central groove and central occlusal surface Intersection with ridge 16 ... Maxillary first molar 16a ... Central fossa of maxillary first molar 17 ... Maxillary second molar 17a ... Central fossa of maxillary second molar 21 ... -Mandibular central incisor 21a ... Interdental portion between left mandibular central incisor and right mandibular central incisor 22 ... Mandibular incisor 22a ... Mesial angle cut edge 23 ... Mandibular canine 23a ··· 24 ··· Mandibular first premolar 24a · · · Intersection of central groove and central occlusal ridge 25 · Mandibular second premolar 25a · · · Intersection of heart groove and central occlusal ridge 26 ... Mandibular first molar 26a ... Central fossa of mandibular first molar 27 ... Mandibular second molar 27a ... Mandibular second molar 50, 52 ... left buccal floor margin 51, 53 ... right buccal floor margin 100 ... maxillary standard denture base 101 ... artificial tooth 200 ... mandibular standard denture base

Claims (26)

When the length of the line segment PQ connecting the point P corresponding to the left wing protrusion maxillary notch at the trailing edge of the floor and the point Q corresponding to the right wing protrusion maxillary notch is 1,
The length of the line segment OM connecting the point O corresponding to the upper lip band in the middle of the lip side floor edge and the midpoint M of the line segment PQ is 0.76 to 0.98, and the line from the midpoint M A maxillary standard denture base, characterized in that the length of a line segment NM connecting an intersection N and a midpoint M between a perpendicular line to the segment PQ and the floor trailing edge is 0.05 to 0.10. The upper denture base denture base is
Each point that divides the line segment OP connecting the point O and the point P into four equal parts is defined as a point P1, a point P2, and a point P3 from the point O side.
Points D1, D2 and D3 are points where the vertical lines from the points P1, P2 and P3 on the line segment OP intersect the left cheek floor edge,
Each point that divides the line segment OQ connecting the point O and the point Q into four equal parts is defined as a point Q1, a point Q2, and a point Q3 from the point O side,
Points E1, E2 and E3 are points where the vertical lines from the points Q1, Q2 and Q3 on the line segment OQ intersect with the right cheek floor edge,
When the length of the line segment PQ is 1,
The lengths of the line segment P1D1 and the line segment Q1E1 are 0.11 to 0.36, respectively.
The lengths of the line segment P2D2 and the line segment Q2E2 are 0.19 to 0.45, respectively.
The lengths of the line segment P3D3 and the line segment Q3E3 are 0.16 to 0.45, respectively.
The maxillary reference denture base according to claim 1.   The maxillary standard denture base according to claim 1 or 2, wherein at least one artificial tooth is arranged in advance. The upper denture base denture base is
When the length of the line segment PQ is 1,
On the vertical line to the line segment OP connecting the point S6 on the line segment OP and at a distance of 0.74 from the point O and the left cheek floor edge, 0. 0 from the point S6 to the left cheek floor edge side. A central fovea of the left first maxillary molar in a circle of radius 0.14 having a central point at a distance of 11;
On the line perpendicular to the line segment OQ connecting the point T6 on the line segment OQ and at a distance of 0.74 from the point O to the right cheek floor edge, 0. 0 from the point T6 to the right cheek floor edge side. 4. A maxillary standard denture base according to claim 3 having a central fovea of the right upper first molar in a circle of radius 0.14 having a center point at a distance of 11. The upper denture base denture base is
When the length of the line segment PQ is 1,
The maxillary standard denture base according to claim 3, which has an interdental portion between the left maxillary central incisor and the right maxillary central incisor at a distance of 0.76 to 1.14 on the lip side from the point M on the straight line OM. . The upper denture base denture base is
When the length of the line segment PQ is 1,
On the vertical line to the line segment OP connecting the point S3 on the line segment OP and at a distance of 0.30 from the point O and the left cheek floor edge, 0. 0 from the point S3 to the left cheek floor edge side. A left maxillary canine point in a circle of radius 0.12 with a center point at a distance of 25;
On the vertical line to the line segment OQ connecting the point T3 on the line segment OQ at a distance of 0.30 from the point O and the right cheek floor edge, 0. 0 from the point T3 to the right cheek floor edge side. 4. The maxillary standard denture base according to claim 3, wherein the upper maxillary canine point is within a circle having a radius of 0.12 having a center point at a distance of 25.   A maxillary standard denture in which artificial teeth of all dentitions are arranged in advance on the maxillary standard denture base according to any one of claims 1 to 6. When the length of the line segment pq connecting the point p corresponding to the left posterior ridge protrusion and the point q corresponding to the right posterior ridge protrusion of the floor rear edge is 1,
Mandibular reference characterized in that the length of the line segment om connecting the point o corresponding to the lower lip strip in the middle of the labial floor edge and the midpoint m of the line segment pq is 0.76 to 0.94 A denture base,
Maxillary standard denture base or maxillary standard denture according to any one of claims 1 to 7,
A denture preparation kit comprising: The mandibular reference denture base is
The points that divide line segment op connecting point o and point p into four equal parts are point p1, point p2, and point p3 from point o, and are perpendicular to points p1, p2, and p3 on line segment op. The points where the line intersects the left cheek floor edge are point d1, point d2, and point d3,
The points that divide the line segment oq connecting the point o and the point q into four equal parts are the point q1, the point q2, and the point q3 from the point o side, and are perpendicular to the points q1, q2, and q3 on the line segment oq. The points where the line intersects the right cheek floor edge are point e1, point e2, and point e3,
When the length of the line segment pq is 1,
The lengths of the line segment p1d1 and the line segment q1e1 are 0.11 to 0.32, respectively.
The lengths of the line segment p2d2 and the line segment q2e2 are 0.13 to 0.34, respectively.
The lengths of the line segment p3d3 and the line segment q3e3 are 0.14 to 0.33, respectively.
The denture preparation kit according to claim 8, which is a mandibular reference denture base. The mandibular reference denture base is
When the length of the line segment pq is 1,
The intersections of the straight lines d1p1, d2p2, d3p3 and e1q1, e2q2, e3q3 and the lingual floor edge are point b1, point b2, point b3 and point c1, point c2, point c3, respectively.
The lengths of the line segment d1b1 and the line segment e1c1 are 0.14 to 0.40, respectively.
The lengths of the line segment d2b2 and the line segment e2c2 are 0.19 to 0.41, respectively.
The lengths of the line segment d3b3 and the line segment e3c3 are 0.21 to 0.42, respectively.
The denture preparation kit according to claim 8 or 9, which is a mandibular reference denture base. The mandibular reference denture base is
The denture preparation kit according to any one of claims 8 to 10, wherein the artificial tooth is a mandibular reference denture base in which at least one artificial tooth is arranged in advance. The mandibular reference denture base is
When the length of the line segment pq is 1,
On the vertical line to the line segment op connecting the point s6 on the line segment op and at a distance of 0.65 from the point o to the left cheek floor edge, 0. 0 from the point s6 to the left cheek floor edge side. Having a fovea of the left lower first molar in a circle of radius 0.12 having a center point at a distance of 08;
On the line perpendicular to the line segment oq connecting the point t6 on the line segment oq and at a distance of 0.65 from the point o and the right cheek floor edge, 0. 0 from the point t6 to the right cheek floor edge side. The denture preparation kit according to claim 11, which is a mandibular standard denture base having a central fovea of the right lower first molar in a circle having a radius of 0.12 having a center point at a distance of 08. The mandibular reference denture base is
When the length of the line segment pq is 1,
The mandibular reference denture base having an interdental portion between the left mandibular central incisor and the right mandibular central incisor on a straight line om and at a distance of 0.74 to 0.94 on the lip side from the point m. The described denture preparation kit. The mandibular reference denture base is
When the length of the line segment pq is 1,
On the vertical line to the line segment op connecting the point s3 on the line segment op and at a distance of 0.23 from the point o and the left cheek floor edge, 0. 0 from the point s3 to the left cheek floor edge side. Having a cusp of the left lower canine in a circle of radius 0.11 with a center point at a distance of 17;
On the vertical line to the line segment oq connecting the point t3 on the line segment oq and at a distance of 0.23 from the point o and the right cheek floor edge, 0. 0 from the point t3 to the right cheek floor edge side. The denture preparation kit according to claim 11, which is a mandibular reference denture base having a right mandibular canine point in a circle having a radius of 0.11 and having a center point at a distance of 17. A mandibular standard denture in which artificial teeth of all dentitions are pre-arranged on the mandibular standard denture base according to any one of claims 8 to 14,
Maxillary standard denture base or maxillary standard denture according to any one of claims 1 to 7,
A denture preparation kit comprising:   The denture preparation kit according to any one of claims 8 to 15, further comprising a lining material.   A denture preparation kit comprising a plurality of maxillary standard denture bases according to any one of claims 1 to 6, wherein the maxillary standard denture bases are different in size. The maxillary standard denture base according to any one of claims 1 to 6, wherein the maxillary standard denture base has different sizes.
The mandibular standard denture base according to any one of claims 8 to 14, wherein a plurality of mandibular standard denture bases having different sizes are provided.
A denture preparation kit comprising:   The denture preparation kit according to claim 17 or 18, further comprising a lining material. Selecting a maxillary reference denture base that fits the size of the patient's mouth from the denture preparation kit according to claim 17 or 19,
Arranging artificial teeth on the upper standard denture base;
Building a lining material on the upper standard denture base;
A method for producing a denture characterized by comprising: Selecting a maxillary standard denture base and a mandibular standard denture base that fit the patient's mouth size from the denture preparation kit according to claim 18 or 19,
Arranging artificial teeth on the upper standard denture base and the lower standard denture base;
Building up a lining material on the upper standard denture base and the lower standard denture base;
A method for producing a denture characterized by comprising:   A denture preparation kit comprising a plurality of maxillary reference dentures of different sizes according to the maxillary reference dentures according to claim 7. A plurality of maxillary reference dentures of different sizes according to claim 7,
A plurality of mandibular reference dentures of different sizes in the mandibular reference dentures according to claim 15,
A denture preparation kit comprising:   The denture preparation kit according to claim 22 or 23, further comprising a lining material. Selecting an upper reference denture that fits the size of the patient's mouth from the denture preparation kit according to claim 22 or 24;
Laying a lining material on the upper standard denture;
A method for producing a denture characterized by comprising: Selecting a maxillary standard denture and a mandibular standard denture that match the size of the patient's mouth from the denture preparation kit according to claim 23 or 24;
Laying a lining material on the upper standard denture and the lower standard denture;
A method for producing a denture characterized by comprising:

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