US20100040997A1 - Artificial teeth - Google Patents

Artificial teeth Download PDF

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Publication number
US20100040997A1
US20100040997A1 US12/461,100 US46110009A US2010040997A1 US 20100040997 A1 US20100040997 A1 US 20100040997A1 US 46110009 A US46110009 A US 46110009A US 2010040997 A1 US2010040997 A1 US 2010040997A1
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Prior art keywords
cusp
mandibular
tooth
maxillary
teeth
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Abandoned
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US12/461,100
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English (en)
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Yusei Kadobayashi
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Shofu Inc
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Shofu Inc
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Assigned to KABUSHIKI KAISHA SHOFU reassignment KABUSHIKI KAISHA SHOFU ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KADOBAYASHI, YUSEI
Publication of US20100040997A1 publication Critical patent/US20100040997A1/en
Priority to US14/078,597 priority Critical patent/US8758014B2/en
Abandoned legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/08—Artificial teeth; Making same
    • A61C13/097—Artificial teeth; Making same characterised by occlusal profiles, i.e. chewing contact surfaces
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/0027—Base for holding castings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/10—Fastening of artificial teeth to denture palates or the like
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/10—Fastening of artificial teeth to denture palates or the like
    • A61C13/1003—Fastening of artificial teeth to denture palates or the like by embedding in base material
    • A61C13/1013—Arch forms
    • A61C13/1016—Methods or apparatus for mounting, holding or positioning a set of teeth

Definitions

  • the present invention relates to artificial molar teeth capable of easy arrangement when making a dental prosthetic appliance, and easy chewing at the time of mounting it as dentures.
  • Patent document 1 discloses artificial molar teeth in which a lingual cusp, a buccal cusp, and a fossa are formed on the occlusal surface of maxillary molar teeth, and also a lingual cusp, a buccal cusp, and a fossa are formed on the occlusal surface of antagonist, i.e. opposed mandibular molar teeth.
  • This artificial molar teeth are configured such that at a central occlusal position the lingual cusp of the maxillary molar teeth occludes and contacts with the fossa of the mandibular antagonist, and the buccal cusp of the mandibular antagonist occludes and contacts with the fossa of the maxillary molar teeth.
  • occlusal contact occurs in a total of 18 points, 9 points at the left and 9 points at the right.
  • the number of occlusal contact points is smaller than in the full-balanced occlusion, and there is no occlusal contact with inclined surface of the buccal cusp as in the full-balanced occlusion. Accordingly, when making dentures, arrangement on the wax alveolar ridge or occlusal adjustment by grinding or the like is easy. When the dentures are used, the dentures are stable without falling over. In mastication efficiency including grinding, biting and cutting of food, a satisfactory occlusion close to the full-balanced occlusion will be obtained. Moreover, changing to a lingualized occlusion can be easily conducted not only when making dentures but also when correcting the dentures.
  • the artificial molar teeth disclosed in the patent document 1 it is required to achieve occlusal contacts between the lingual cusp of maxillary molar teeth and the fossa of mandibular antagonist, and between the fossa of maxillary molar teeth and the buccal cusp of mandibular antagonist, respectively. Therefore, it was extremely difficult to make dentures of each patient according to the complicated oral cavity environments of patients. Besides, the cusp of the artificial molar teeth may be distorted in a molding process. Therefore, it is extremely difficult to mold the cusp in a shape exactly engaging with the fossae of the antagonist, causing an disadvantage of poor yield ratio.
  • Patent document 2 discloses an occlusion adjusting method in which cavities of a specified depth are provided on the occlusal surface of mandibular artificial teeth configuring dentures, and the cavities are filled with a plastic dental material of resin or an inlay wax of casing.
  • Patent document 1 Japanese Patent Application Laid-Open No. 2002-177301
  • Patent document2l Japanese Patent Application Laid-Open No. 2006-42954
  • the artificial molar teeth of the invention have maxillary molar teeth and mandibular molar teeth to be arranged so as to form a pair on denture bases to be mounted on upper and lower jaws in an oral cavity, in which one cusp out of cusps of the maxillary molar teeth and the mandibular molar teeth is engaged with a fossa of the antagonist, and at least one of the other cusps is engaged with a groove of the antagonist.
  • the artificial molar teeth have maxillary molar teeth and mandibular molar teeth to be arranged so as to form a pair on denture bases to be mounted on upper and lower jaws in an oral cavity, the lingual cusp of the maxillary molar teeth contacting with the mandibular molar teeth, and the buccal cusp of the mandibular molar teeth contacting with the maxillary molar teeth, in which one cusp out of cusps of the maxillary molar teeth and the mandibular molar teeth is engaged with a fossa of the antagonist, and at least one of the other cusps is engaged with a groove of the antagonist.
  • a pair of lingual cusps are provided in the maxillary molar teeth, and a pair of buccal cusps are provided in the mandibular molar teeth.
  • the cusp to be engaged with the fossa is preferred to be a crushing cusp.
  • the other cusps except for the cusp engaged with the fossa and the cusp engaged with the groove are desired to be configured so as to contact with the bulged portions of the antagonist.
  • the tooth in a state that one cusp out of the cusps of the maxillary molar teeth and the mandibular molar teeth is engaged with the fossa of antagonist, the tooth is rotated for fine adjustment so that the other cusps can be easily engaged with the groove of the antagonist, and can be adjusted to specified positions and arranged. Therefore, when arranging the individual artificial molar teeth, high precision is not needed in the arrangement positions. Hence, when arranging the teeth according to the oral cavity environment of a patient at the time of making teeth, the upper and lower teeth can be arranged at specified positions without requiring advanced techniques or experiences. When molding the artificial molar teeth, advanced precision is not required, and the artificial molar teeth can be arranged even if the teeth have some deformation. As a result, the manufacturing cost of the artificial molar teeth can be significantly decreased.
  • FIG. 1 is a plan view showing a basic configuration of artificial teeth disposed in an upper jaw and a lower jaw.
  • FIG. 2 is a conceptual diagram showing an state of the maxillary molar teeth and the mandibular molar teeth of the invention arranged and placed in the upper and lower positions, respectively.
  • FIG. 3 (A) is a plan view showing an engaged state of premolar teeth.
  • FIG. 3 (B) is a plan view showing an engaged state of molar teeth.
  • the invention is a technique for making artificial teeth as dental prosthetic appliances being dentures, and more particularly is a technique capable of applying for making of artificial molar teeth.
  • the artificial molar teeth include a first molar tooth, a second molar tooth, a first premolar tooth, and a second premolar tooth, and in particular a combination of at least a pair of upper and lower opposed teeth is preferred, and more preferably a combination of four upper and lower artificial teeth including the first molar tooth, the second molar tooth, the first premolar tooth, and the second premolar tooth.
  • FIG. 1 shows an arrangement of all artificial teeth, showing an upper jaw at left and a lower jaw at right.
  • one tooth of the upper jaw corresponds to one tooth of the lower jaw.
  • a direction approaching to anterior teeth is referred to as a mesial side, and a direction departing therefrom as a distal side.
  • the inside of an oral cavity is referred to as a lingual side, and the outside of an oral cavity as a buccal side.
  • the artificial molar teeth include a maxillary first molar tooth 1 , a maxillary second molar tooth 2 , a maxillary first premolar tooth 3 , and a maxillary second premolar tooth 4 arranged in an upper jaw, and a mandibular first molar tooth 5 , a mandibular second molar tooth 6 , a mandibular first premolar tooth 7 , and a mandibular second premolar tooth 8 arranged in an opposed lower jaw.
  • teeth 1 to 8 are opposed, in order from the mesial side, as a pair (cusp to fossa) of the maxillary first premolar tooth 1 and the mandibular first premolar tooth 5 , a pair of the maxillary second premolar tooth 2 and the mandibular second premolar tooth 6 , a pair of the maxillary first molar tooth 3 and the mandibular first molar tooth 7 , and a pair of the maxillary second molar tooth 4 and the mandibular second molar tooth 8 .
  • the maxillary first premolar tooth 1 is provided with a buccal cusp 9 at the buccal side, and a lingual cusp 10 at the lingual side. These cusps 9 , 10 have a shape in which a bulky tooth substance bulges in a tapered form.
  • the maxillary first premolar tooth 1 is provided with a central groove 11 extending toward the mesial and distal directions between the buccal cusp 9 and the lingual cusp 10 . On this central groove 11 , a fossa 12 of the greatest depth in the vertical direction in an arranged state is formed at a specified position.
  • the maxillary second premolar tooth 2 is provided with a buccal cusp 13 at the buccal side, and a lingual cusp 14 at the lingual side. These cusps 13 , 14 have a shape in which a bulky tooth substance bulges in a tapered form.
  • the maxillary second premolar tooth 2 is provided with a central groove 15 extending toward the mesial and distal directions between the buccal cusp 13 and the lingual cusp 13 . On this central groove 15 , a fossa 16 is formed at a specified position.
  • the maxillary first molar tooth 3 is provided with a mesial buccal cusp 17 at the mesial side of the buccal side, a distal buccal cusp 18 at the distal side of the buccal side, a mesial lingual cusp 19 at the mesial side of the lingual side, and a distal lingual cusp 20 at the distal side of the lingual side.
  • These cusps 17 to 20 have a shape in which a bulky tooth substance bulges in a tapered form.
  • the distal lingual cusp 20 is a crushing cusp mainly acting when grinding, biting or cutting the food.
  • the maxillary first molar tooth 3 is provided with a central groove 21 extending toward the mesial and distal directions between each pair of the buccal cusps 17 , 18 and lingual cusps 19 , 20 .
  • a buccal side groove 22 and a lingual side groove 23 extending toward the buccal side and lingual side are formed between each pair of the mesial cusps 17 , 19 and distal cusps 18 , 20 .
  • a fossa 24 is formed at the intersecting portion of the grooves 21 to 23 .
  • the maxillary second molar tooth 4 is provided with a mesial buccal cusp 25 at the mesial side of the buccal side, a distal buccal cusp 26 at the distal side of the buccal side, a mesial lingual cusp 27 at the mesial side of the lingual side, and a distal lingual cusp 28 at the distal side of the lingual side.
  • These cusps 25 to 28 have a shape in which a bulky tooth substance bulges in a tapered form.
  • the maxillary second molar tooth 4 is provided with a central groove 29 extending toward the mesial and distal directions between each pair of the buccal cusps 25 , 26 and lingual cusps 27 , 28 .
  • a buccal side groove 30 and a lingual side groove 31 extending toward the buccal side and lingual side are formed between each pair of the mesial cusps 25 , 27 and distal cusps 26 , 28 .
  • a fossa 32 is formed at the intersecting portion of the grooves 29 to 31 .
  • the mandibular first premolar tooth 5 is provided with a buccal cusp 33 at the buccal side, and a lingual cusp 34 at the lingual side. These cusps 33 , 34 have a shape in which a bulky tooth substance bulges in a tapered form.
  • the mandibular first premolar tooth 5 is provided with a central groove 35 extending toward the mesial and distal directions between the buccal cusp 33 and lingual cusp 34 . On this central groove 35 , a fossa 36 is formed at a specified position.
  • the mandibular second premolar tooth 6 is provided with a buccal cusp 37 at the buccal side, and a lingual cusp 38 at the lingual side. These cusps 37 , 38 have a shape in which a bulky tooth substance bulges in a tapered form.
  • the mandibular second premolar tooth 6 is provided with a central groove 39 extending toward the mesial and distal directions between the buccal cusp 37 and lingual cusp 38 . On this central groove 39 , a fossa 40 is formed at a specified position.
  • the mandibular first molar tooth 7 is provided with a mesial buccal cusp 41 at the mesial side of the buccal side, a distal buccal cusp 42 at the distal side of the buccal side, a mesial lingual cusp 43 at the mesial side of the lingual side, and a distal lingual cusp 44 at the distal side of the lingual side.
  • These cusps 41 to 44 have a shape in which a bulky tooth substance bulges in a tapered form.
  • the mandibular first molar tooth 7 is provided with a central groove 45 extending toward the mesial and distal directions between each pair of the buccal cusps 41 , 42 and lingual cusps 43 , 44 .
  • a buccal side groove 46 and a lingual side groove 47 extending toward the buccal side and lingual side are formed between each pair of the mesial cusps 41 , 43 and distal cusps 42 , 44 .
  • a fossa 48 is formed at the intersecting portion of the grooves 45 to 47 .
  • the mandibular second molar tooth 8 is provided with a mesial buccal cusp 49 at the mesial side of the buccal side, a distal buccal cusp 50 at the distal side of the buccal side, a mesial lingual cusp 51 at the mesial side of the lingual side, and a distal lingual cusp 52 at the distal side of the lingual side.
  • the mandibular second molar tooth 8 may be provided with another cusp at the distal side.
  • These cusps 49 to 52 have a shape in which a bulky tooth substance bulges in a tapered form.
  • the mandibular second molar tooth 8 is provided with a central groove 53 extending toward the mesial and distal directions between each pair of the buccal cusps 49 , 50 and lingual cusps 51 , 52 .
  • a buccal side groove 54 and a lingual side groove 55 extending toward the buccal side and lingual side are formed between each pair of the mesial cusps 49 , 51 and distal cusps 50 , 52 .
  • a fossa 56 is formed at the intersecting portion of the grooves 53 to 55 .
  • the maxillary molar teeth 1 to 4 are arranged in a maxillary base 57
  • the mandibular molar teeth 5 to 8 are arranged in a mandibular base 58 .
  • the teeth are detachably mounted in the oral cavity of a patient.
  • the mandibular base 58 is formed in a nearly U-shape for allowing to expose the patient's tongue.
  • the cusp of one tooth of 1 to 4 , 5 to 8 is configured to fall into (engaged with) the fossa of the antagonist of 5 to 8 , 1 to 4 .
  • one of the other cusps excluding the cusp to be engaged with the fossa is configured to be engaged with a groove in the antagonist of 5 to 8 , 1 to 4 .
  • Pairing teeth 1 , 5 to 4 , 8 are further provided with another cusps, except for the cusp to be engaged with the fossa and the cusp to be engaged with the groove.
  • the maxillary molar teeth 1 to 4 have buccal cusps 17 , 18 , 25 , 26
  • the mandibular molar teeth 5 to 8 have lingual cusps 43 , 44 , 51 , 52 .
  • These cusps are configured not to be engaged with any one of the antagonist 1 to 4 , 5 to 8 .
  • the molar teeth 3 , 4 , 7 , 8 are further provided with another cusps, except for the cusp engaged with the fossa, the cusp engaged with the groove, and the cusp not engaged with anything.
  • the other cusp is configured to contact with the bulged portion of the antagonist 7 , 8 , 3 , 4 .
  • the maxillary first motor tooth 3 and the mandibular first motor tooth 7 , and the maxillary second motor tooth 4 and the mandibular second motor tooth 8 contact with each other in a total of four cusps.
  • such cusps are the lingual cusps 19 , 20 , 27 , 28
  • such cusps are the buccal cusps 41 , 42 , 49 , 50 .
  • first molar teeth 3 , 7 one of the lingual cusps 19 , 20 of the maxillary first molar tooth 3 and the buccal cups 41 , 42 of the mandibular first molar tooth 7 is engaged with the fossae 24 , 48 of the antagonist.
  • second molar teeth 4 , 8 one of the lingual cusps 27 , 28 of the maxillary second molar tooth 4 and the buccal cups 49 , 50 of the mandibular second molar tooth 8 is configured to be engaged with the opposed fossae 32 , 56 . Further, the cusp adjacent to the same side of the cusp engaged with the groove is engaged with the opposed groove.
  • premolar teeth 1 , 2 , 5 , 6 in an engagement between the maxillary premolar teeth 1 , 2 and the mandibular premolar teeth 5 , 6 , one of the cusps 10 , 11 , 13 , 14 of each of the maxillary premolar teeth 1 , 2 , and one of the cusps 33 , 34 , 37 , 38 of each of the mandibular premolar teeth 5 , 6 contact with the antagonist, respectively.
  • one of the lingual cusp 10 of the maxillary first premolar tooth 1 and the buccal cusp 33 of the mandibular first premolar tooth 5 is engaged with the fossae 12 , 36 of the antagonist, and the other is engaged with the grooves 11 , 35 .
  • one of the lingual cusp 14 of the maxillary second premolar tooth 2 and the buccal cusp 37 of the mandibular second premolar tooth 6 is engaged with the opposed fossae 16 , 40 , and the other is engaged with the grooves 15 , 39 .
  • one cusp of maxillary molar teeth 1 to 4 is configured to fall into the fossae 36 , 40 , 48 , 56 of the mandibular molar teeth 5 to 8 .
  • an engagement with a fossa includes a configuration in which the top portion of a cusp contacts with the bottom of a fossa, and a configuration in which the bulged portion of a cusp abuts on the periphery of the fossa (the inner wall of the groove), without contacting of the top of the cusp with the bottom of a fossa. That is, it means a state where the cusp top is engaged with the fossa even if the cusp top is not contacting with the antagonist.
  • at the engagement with a fossa means a state where the position of the cusp is fixed and does not move even if the other portion is not contacting.
  • An engagement with a groove means a state where the cusp is movable along the groove and is not fixed in a position when the other portion is not engaged. In this way, it is configured such that the position of the cusp is determined by engagement with the fossa, and the position of the maxillary molar teeth 1 to 4 and the mandibular molar teeth 5 to 8 is determined in the other groove according to this position.
  • the groove is constituted with a valley between fossae or bulged portions.
  • the engagement with a groove includes an engagement with a valley, and is preferably an engagement with a valley.
  • An engagement with a valley means a state where the cusp of the antagonist does not contact with the groove, but contacts with two positions of the bulged portion configuring the groove.
  • the second premolar teeth 2 , 6 are configured such that the lingual cusp 14 of the maxillary second premolar tooth 2 is engaged with (contacts with) the lingual side fossa 40 formed on the central groove 39 of the mandibular second premolar tooth 6 .
  • the mutual members are not free to move, and are fixed in the place. Because of this portion, the upper and lower jaws are fixed and a stable position relation is maintained. That is, the position is determined in the relation of the artificial molar teeth 1 to 4 and 5 to 8 of the upper and lower jaws.
  • the second premolar teeth 2 , 6 are configured such that the buccal cusp 37 of the mandibular second premolar tooth 6 is engaged with a specified position on a sub-groove 15 a branched from the central groove 15 of the maxillary second premolar tooth 2 .
  • the cusp top of the buccal cusp 37 is fitted with the valley portion of the central groove 15 , and hence it is free to move along the central groove 15 different from the case of the engagement of the cusp top with the fossa.
  • the second premolar teeth 2 , 6 are made such that the lingual cusp 14 of the maxillary second premolar tooth 2 and the fossa 40 of the mandibular second premolar tooth 6 , and the buccal cusp 37 of the mandibular second premolar tooth 6 and the central groove 15 of the maxillary second premolar tooth 2 may correspond to each other.
  • the second premolar teeth 2 , 6 are also provided with the buccal cusp 13 of the maxillary second premolar tooth 2 and the lingual cusp 38 of the mandibular second premolar tooth 6 , in addition to the cusps 14 , 37 engaged with the fossa 40 or the groove 15 .
  • Each cusp top of these cusps 13 , 38 does not engage or contact with any one of the antagonist 6 , 2 .
  • the first molar teeth 3 , 7 are configured such that the distal lingual cusp 20 of the maxillary first molar tooth 3 as a crushing cusp is engaged with the fossa 48 on the central groove 45 of the mandibular first molar tooth 7 .
  • the cusp top of the distal lingual cusp 20 is fitted with the deep fossa 48 on the central groove 45 , and the mutual members are not free to move, and are fixed in the place. Because of this portion, the upper and lower jaws are fixed and a stable position relation is maintained. That is, the position is determined in the relation of the artificial molar teeth 1 to 4 and 5 to 8 of the upper and lower jaws.
  • the first molar teeth 3 , 7 are configured such that the mesial lingual cusp 19 of the maxillary first molar tooth 3 is engaged with a mesial groove 45 a extending toward the mesial side of the central groove 45 of the mandibular first molar tooth 7 .
  • this engagement similarly to the second premolar teeth 2 , 6 , since the cusp top of the mesial lingual cusp 19 is fitted with the valley portion of the central groove 45 , it is free to move along the central groove 45 .
  • first molar teeth 3 , 7 are configured such that the mesial buccal cusp 41 of the mandibular first molar tooth 7 contacts with a contour 17 a which is the bulged portion of the mesial buccal cusp 17 of the maxillary first molar tooth 3 .
  • This contact position is a portion determined when the position relation of the other cusp and the fossa or the cusp and the groove is determined, and it is free to move by adjustment. That is, it is free to be determined by the relation of the other portions of the maxillary and mandibular artificial molar teeth 1 to 4 , 5 to 8 . Because of this portion, the upper and lower jaws are determined, and a stable position relation is maintained.
  • first molar teeth 3 , 7 are configured such that the distal buccal cusp 42 of the mandibular first molar tooth 7 contacts with a contour 18 a which is the bulged portion of the distal buccal cusp 18 of the maxillary first molar tooth 3 .
  • This contact position is a portion determined when the portion relation of the other cusp and the fossa or the cusp and the groove is determined, similarly to the case above, and it is free to move by adjustment. That is, it is free to determine by the relation of the other portions of the maxillary and mandibular artificial molar teeth 1 to 4 , 5 to 8 . Because of this portion, the upper and lower jaws are determined, and a stable position relation is maintained.
  • the first molar teeth 3 , 7 are fabricated such that the distal lingual cusp 20 of the maxillary first molar tooth 3 and the fossa 48 of the mandibular first molar tooth 7 , the mesial lingual cusp 19 of the maxillary first molar tooth 3 and the central groove 45 of the mandibular first molar tooth 7 , the mesial buccal cusp 41 of the mandibular first molar tooth 7 and the bulk portion 17 a of the maxillary first molar tooth 3 , and the distal buccal cusp 42 of the mandibular first molar tooth 7 and the bulk portion 18 a of the maxillary first molar tooth 3 may correspond to each other.
  • the first molar teeth 3 , 7 are also provided with the buccal cusps 17 , 18 of the maxillary first molar tooth 3 and the lingual cusps 43 , 44 of the mandibular first molar tooth 7 , in addition to the cusps 20 , 19 engaged with the fossa 48 or the groove 45 , and the cusps 41 , 42 contacting with the bulk portions 17 a. 18 a.
  • Each cusp top of these cusps 17 , 18 , 43 , 44 does not engage or contact with any one of the antagonist 7 , 3 .
  • the maxillary first premolar tooth 1 is arranged in the maxillary base 57
  • the mandibular first premolar tooth 5 is arranged in the mandibular base 58 .
  • these first premolar teeth 1 , 5 are occluded, and the lingual cusp 10 of the maxillary first premolar tooth 1 is engaged with the fossa 36 of the mandibular first premolar tooth 5 .
  • By rotating the tooth about the center of this engagement point it is adjusted such that the buccal cusp 33 of the mandibular first premolar tooth 5 may be engaged with the central groove 11 of the maxillary first premolar tooth 1 .
  • the maxillary second premolar tooth 2 is arranged in the maxillary base 57 . At this time, it is arranged such that one point of the outer circumference contacts with the previously arranged maxillary first premolar tooth 1 . Then, the mandibular second premolar tooth 6 is arranged in the mandibular base 58 . At this time, similarly to the maxillary second premolar tooth 2 , it is arranged such that one point of the outer circumference contacts with the previously arranged mandibular first premolar tooth 5 .
  • the lingual cusp 14 of the maxillary second premolar tooth 2 is engaged with the fossa 40 of the mandibular second premolar tooth 6 .
  • it is adjusted such that the buccal cusp 37 of the mandibular second premolar tooth 6 is engaged with the central groove 15 of the maxillary second premolar tooth 2 .
  • the maxillary first molar tooth 3 is arranged in the maxillary base 57 . At this time, it is arranged such that one point of the outer circumference contacts with the previously arranged maxillary second premolar tooth 2 . Then, the mandibular first molar tooth 7 is arranged in the mandibular base 58 . At this time, similarly to the maxillary first molar tooth 3 , it is arranged such that one point of the outer circumference contacts with the previously arranged mandibular second premolar tooth 6 .
  • the distal lingual cusp 20 of the maxillary first molar tooth 3 is engaged with the fossa 48 of the mandibular first molar tooth 7 .
  • the mesial lingual cusp 19 of the mandibular first molar tooth 3 may be engaged with the central groove 45 of the mandibular first molar tooth 7 .
  • each of the buccal cusps 41 , 42 of the mandibular first molar tooth 7 contacts with each of the bulk portions 17 a, 18 a of the maxillary first molar tooth 3 .
  • the maxillary second molar tooth 43 is arranged in the maxillary base 57 . At this time, it is arranged such that one point of the outer circumference contacts with the previously arranged maxillary first molar tooth 3 . Then, the mandibular second molar tooth 8 is arranged in the mandibular base 58 . At this time, similarly to the maxillary second molar tooth 4 , it is arranged such that one point of the outer circumference contacts with the previously arranged mandibular first premolar tooth 5 .
  • the distal lingual cusp 28 of the maxillary second molar tooth 4 is engaged with the fossa 56 of the mandibular second molar tooth 8 .
  • the tooth is adjusted such that the mesial lingual cusp 27 of the mandibular second molar tooth 4 is engaged with the central groove 53 of the mandibular second molar tooth 8 .
  • the buccal cusps 49 , 50 of the mandibular second molar tooth 8 contact with the bulk portions of the maxillary second molar tooth 4 .
  • the other cusps may be easily engaged with the grooves of the antagonist, and the teeth can be arranged by adjusting to specified positions. That is, when arranging the artificial molar teeth 1 to 8 , high precision is not required in the position of arrangement. Hence, when making according to the oral cavity environment of a patient at the time of manufacture, the upper and lower teeth 1 to 4 , 5 to 8 can be arranged at specified positions without requiring advanced techniques or experiences.
  • the oral cavity environment of the patient varies significantly in individual patients, and the oral cavity, and the height and angle of an alveolar ridge are varied in the edentulous jaw.
  • the artificial teeth can be arranged easily in a short time, and the oral cavity environment can be reproduced.
  • the oral cavity is enhanced aesthetically.
  • the cusp to be engaged with the fossa is a crushing cusp, in addition to cutting function, grinding function can be added, and therefore chewing can be carried out easily.
  • the artificial molar teeth of the invention is not limited to the configurations shown in the embodiment, but may be modified variously.
  • the cusps of the maxillary molar teeth 1 to 4 and the fossae of the mandibular molar teeth 5 to 8 are engaged with each other, but it may be configured such that the cusps of the mandibular molar teeth 5 to 8 are engaged with the fossae of the maxillary molar teeth 1 to 4 .
  • the cusps of the maxillary molar teeth 1 to 4 and the grooves of the mandibular molar teeth 5 to 8 are engaged with each other, but it may be configured such that the cusps of the mandibular molar teeth 5 to 8 are engaged with the grooves of the maxillary molar teeth 1 to 4 .
  • the cusps engaged with the fossae or grooves may be divided into upper and lower portions.
  • the cusp of the maxillary first premolar tooth 1 may be engaged with the fossa of the mandibular first premolar tooth 5
  • the cusp of the mandibular second premolar tooth 6 may be engaged with the fossa of the maxillary second premolar tooth 2 .
  • the cusps to be engaged with the fossae and the grooves are the same maxillary molar teeth 1 to 4 , but of the maxillary molar teeth 1 to 4 and the mandibular molar teeth 5 to 8 , it may be configured such that one cusp is engaged with the other fossa, and the other cusp may be engaged with one groove. It may be configured such that one cusp is shown to be engaged with the groove, but two or more cusps may be engaged with the individual grooves.

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Dental Prosthetics (AREA)
US12/461,100 2008-08-01 2009-07-31 Artificial teeth Abandoned US20100040997A1 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130316304A1 (en) * 2008-12-17 2013-11-28 Kabushiki Kaisha Shofu Artificial molar teeth
US20140295375A1 (en) * 2011-07-14 2014-10-02 Wolfgang Arnold Tooth replacement
US20150327961A1 (en) * 2010-11-03 2015-11-19 Global Dental Science Llc Systems and processes for forming anatomical features in dentures
GB2532060A (en) * 2014-11-07 2016-05-11 Davis Schottlander & Davis Ltd Artificial teeth
US11284976B2 (en) * 2018-05-10 2022-03-29 Kabushiki Kaisha Shofu Artificial teeth set including mandibular coupled artificial teeth having an arch shape and maxillary coupled artificial teeth having an arch shape
US11298216B2 (en) 2014-03-03 2022-04-12 Global Dental Science Llc System and method for manufacturing layered dentures

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2300577A (en) * 1939-02-10 1942-11-03 Due John B La Artificial tooth
US5733125A (en) * 1995-03-10 1998-03-31 Ivoclar Ag Denture
US6533581B1 (en) * 1998-08-20 2003-03-18 Zahn Spektrum Gmbh Denture set
US20050095559A1 (en) * 2001-12-23 2005-05-05 Ulrich Monkmeyer Set of teeth

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002177301A (ja) 2000-12-17 2002-06-25 Gc Dental Products Corp 人工臼歯
JP2006042954A (ja) 2004-08-02 2006-02-16 Sankiipu:Kk 義歯とその咬交調整方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2300577A (en) * 1939-02-10 1942-11-03 Due John B La Artificial tooth
US5733125A (en) * 1995-03-10 1998-03-31 Ivoclar Ag Denture
US6533581B1 (en) * 1998-08-20 2003-03-18 Zahn Spektrum Gmbh Denture set
US20050095559A1 (en) * 2001-12-23 2005-05-05 Ulrich Monkmeyer Set of teeth
US7267549B2 (en) * 2001-12-23 2007-09-11 Dental Consulting Monkmeyer S.L. Set of teeth

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130316304A1 (en) * 2008-12-17 2013-11-28 Kabushiki Kaisha Shofu Artificial molar teeth
US8986008B2 (en) * 2008-12-17 2015-03-24 Kabushiki Kaisha Shofu Method of arranging artificial molar teeth
US20150327961A1 (en) * 2010-11-03 2015-11-19 Global Dental Science Llc Systems and processes for forming anatomical features in dentures
US10828135B2 (en) * 2010-11-03 2020-11-10 Global Dental Sciences, LLC Systems and processes for forming anatomical features in dentures
US20140295375A1 (en) * 2011-07-14 2014-10-02 Wolfgang Arnold Tooth replacement
US10456226B2 (en) 2011-07-14 2019-10-29 Kuzler Gmbh Tooth replacement
US11298216B2 (en) 2014-03-03 2022-04-12 Global Dental Science Llc System and method for manufacturing layered dentures
GB2532060A (en) * 2014-11-07 2016-05-11 Davis Schottlander & Davis Ltd Artificial teeth
US20170312061A1 (en) * 2014-11-07 2017-11-02 Davis, Schottlander & Davis Ltd Artificial teeth
GB2532060B (en) * 2014-11-07 2020-09-16 Davis Schottlander & Davis Ltd Artificial teeth
US11337784B2 (en) * 2014-11-07 2022-05-24 Davis, Schottlander & Davis Ltd Artificial teeth
US11284976B2 (en) * 2018-05-10 2022-03-29 Kabushiki Kaisha Shofu Artificial teeth set including mandibular coupled artificial teeth having an arch shape and maxillary coupled artificial teeth having an arch shape

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US8758014B2 (en) 2014-06-24
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JP4495245B2 (ja) 2010-06-30

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