WO1988007843A1 - Prothese dentaire permanente et procede - Google Patents

Prothese dentaire permanente et procede Download PDF

Info

Publication number
WO1988007843A1
WO1988007843A1 PCT/US1987/000897 US8700897W WO8807843A1 WO 1988007843 A1 WO1988007843 A1 WO 1988007843A1 US 8700897 W US8700897 W US 8700897W WO 8807843 A1 WO8807843 A1 WO 8807843A1
Authority
WO
WIPO (PCT)
Prior art keywords
base element
teeth
base
anchor elements
gap
Prior art date
Application number
PCT/US1987/000897
Other languages
English (en)
Inventor
Arthur E. Harvey, Sr.
Thomas J. Harvey
Original Assignee
Harvey Arthur E Sr
Harvey Thomas J
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US06/832,769 priority Critical patent/US4661067A/en
Priority claimed from US06/832,769 external-priority patent/US4661067A/en
Application filed by Harvey Arthur E Sr, Harvey Thomas J filed Critical Harvey Arthur E Sr
Publication of WO1988007843A1 publication Critical patent/WO1988007843A1/fr

Links

Classifications

    • 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
    • A61C13/225—Fastening prostheses in the mouth
    • A61C13/277—Telescopic anchoring, i.e. using spring biased detents
    • 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
    • A61C13/225—Fastening prostheses in the mouth
    • A61C13/26—Dentures without palates; Partial dentures, e.g. bridges

Definitions

  • the instant invention relates to the field of dentistry, and more particularly to an improved base structure for a dental prosthesis and to a method of installing and assembling the prosthesis in the mouth of a patient.
  • the heretofore- known permanent dental prostheses have comprised a body portion which defines an artificial tooth or at least a base structure for an artificial tooth and a pair of pins or tabs whichextend outwardly from opposite sides of the body portion and are receivable in notches or holes inthe adjacent natural teeth for securing the body portion between the two natural teeth.
  • the pins or tabs of a prostheses of this type have been cemented in the holes or notches in the adjacent teeth to secure the body portion of the prosthesis in position.
  • anchor elements ' which are permanently securable to the sides of the teeth on either side of an opening or gap in the mouth of a patient and a body portion which is permanently securable to the anchor elements to secure it in the gap.
  • the anchor elements which are used in a prosthesis of this type are permanently securable to the adjacent teeth with pins which are cemented in small holes in the adjacent teeth.
  • anchor elements which are permanently secured to teeth in this manner can provide an effective and durable means of securing a dental prosthesis in the mouth of a patient.
  • anchor elements of this type have recently been used for securing artificial teeth in the mouths of patients, they have only been used in combination with preformed artificial teeth which have not been adjustable to fit gaps of different sizes and which have therefore required substantial amounts of custom dental work in order to adapt and fit them to the mouths of patients and in order to adapt them to be secured with anchor elements.
  • the base element comprises first and second base element portions which ⁇ are received in inter itting relation and slidable in telescoping relation with respect to each other in adirection which extends between the anchor elements to enable the base element to be adjusted to fit the width of the gap.
  • the anchor elements are preferably tapered in their outward extents away from the gumof the patient when they aremounted on their respective teeth, and the base element is configured to receive the first and second anchor elements in snug, interfitting relation when the base element is aligned with the gap and advanced toward the gum.
  • the first and second base element portions preferably define a tooth-like configuration of slightly reduced dimension in the base element, the first base element portion preferably has an aperture therein which is disposed in a direction which extends between the anchor elements, and the second base element portion preferably comprises a pin which is slidably received in the aperture in the first base element portion to enable the first and second base element portions to be slidably adjusted in telescoping relation with respect to each other.
  • first and second anchor elements are secured to spaced first and second teeth, respectively, on opposite sides of a gap in the mouth of a patient, and the base element is assembled in the gap so that it is received in interfitting relation with the anchor elements.
  • first and second base element portions are slidable with respect to each other and preferably slightly rotatable, they can easily be interfitted and assembled with the anchor elements without requiring custom dental laboratory work.
  • the first and second base element portions are permanently secured with respect to each other, and an outer shell or casing having a tooth-like outer configuration is formed over the base element.
  • the base element with the outer casing thereon is secured to the anchor elements to provide a permanently secured prosthesis in the mouth of the patient.
  • a study model is made of the first and second teeth with the anchor elements thereon by conventional dental techniques.
  • the base element is then assembled with the anchor elements in the gap and the first and second base element portions are cemented together. Thereafter, the base element is removed from the patient's mouth and placed on the study model, the outer shell is formed on the base element while it is on the study model, and finally the base element with the outer shell thereon is installed in the mouth of the patient and secured to the anchor elements with a suitable cement.
  • Another object of the instant invention is to provide an effective base structure for a permanent dental prosthesis.
  • Another object of the instant invention is to provide a dental prosthesis comprising an adjustable base element and a pair of anchor elements which are securable to a pair of spaced teeth in the mouth of a patient.
  • a still further object of the instant invention is to provide an improved method of forming and securing one or more artificial teeth in the mouth of a patient.
  • Fig. 1 is an enlarged exploded perspective view of the base structure of the instant invention
  • Fig. 2 is an enlarged exploded perspective view of the base element of a second embodiment of the base structure
  • Fig. 3 is an enlarged fragmentary elevational view of the jaw and tooth structure of a patient with a pair of anchor elements assembled on a pair of the teeth thereof;
  • Fig. 4 is a similar view with the base element assembled with the anchor elements
  • Fig. 5 is a similar view with the first and second portions of the base element secured together;
  • Fig. 5 is a similar view with the outer casing assembled on the base structure.
  • the base element 12 is receivable in the gap 22 for providing a rugged and durable base structure for a permanentdental prosthesis comprising one or more artificial teeth.
  • a base element of a second embodiment of the base structure of the instant invention is illustrated and generally indicated at 25 in Fig. 2, and it is adapted to be mounted in a similar manner on similar anchor elements in a similar gap.
  • the anchor elements 14 and 16 are preferably of conventional construction and preferably made of a suitable corrosion-resistantmetal which is suitable for dental appli ⁇ cations- such as stainless steel, and the anchor elements 14 and 16 each comprises a body portion 26 and a pair of spaced pins 28.
  • the body portions 26 are each preferably formed in a generally truncated .conical configuration, although they have longitudinally extending flattened sides 30 thereon which are receivable in substantially mating relation with the sides of the teeth 18 or 20 to enable themtobe effectively mounted thereon.
  • the surfaces of the body portions 26 are preferably etched by conventional techniques to make them more receptive to adhesives.
  • the pins 28 are assembled with the body portions 26 so that they project from the flattened sides 30 thereof, and they are preferably formed with spaced annular rings 31 thereon which enable them to be more effectively cemented in holes in the sides of the teeth 18 and 20.
  • the anchor elements 14 and 16 are herein embodied as having generally truncated conically shaped body portions 26 and as each having two spaced pins 28, it will be understood that the base structure 10 can be effectively constructed with other types of anchor elements having body portions of different configurations and having different quantities of pins 28.
  • the base element 12 is preferably made of a suitable corrosion-resistant metal which is suitable for dental applications, such as stainless steel, and it comprises first and second base element portions generally indicated at 32 and 34, respectively, which preferably cooperate to define a reduced tooth-like configuration in the base element 12 and which are preferably etched on the surfaces thereof to make them more receptive to adhesives, composite filler materials, etc.
  • the base element portions 32 and 34 have inner mating surfaces 36 and 38, respectively, which are receivable in substantially mating relation, a bore 40 is formed and positioned in the first base element portion 32 so that it extends inwardly from the inner mating surface 36 thereon, and a pin 42 is formed and positioned in the second base element portion 34 so that it projects outwardly from the inner mating surface 38 thereon.
  • the bore 40 and the pin 42 are positioned on their respective base element portions 32 and 34 so that the pin 42 is slidably receivable in the bore 40 and so that the bore 40 and the pin 42 cooperate for retaining the first and second base element portions 32 and 34, respectively, in generally aligned relation. Accordingly, when the pin 42 is entirely received in the bore 40, the mating surfaces 36, 38 are preferably received in mating engagement, although the first and second base element portions 32 and 34, respectively, are preferably at least slightly rotatable with respect to each other to compensate for slight misalignments in the positions of the anchor elements 14 and 16.
  • first and second notches 44 and 46 are Formed on the sides of the first and second base element portions 32 and 34 which face generally away or opposite from the mating surfaces 36 and 38 thereof,- respectively, which are first and second notches 44 and 46, " respectively, which are dimensioned and configured to receive the first and second anchor elements 14 and 16, respectively. More specifically, the notches 44 and 46 are preferably formed in generally open-sided truncated conical configurations, and they are oriented to receive the anchor elements 14 and 16, respectively, when the base element 10 is generally aligned with the gap 22 and advanced therein toward the gum 24. Further, since the pin 42 is slidable in telescoping relation in the bore 40, the width of the base element 12 is automatically adjusted to fit the width of the gap 22 when the base element 12 is assembled with the anchor elements 14 and 16 in this manner.
  • the method of the instant invention can be effectively applied to form and assemble a permanent dental prosthesis in the mouth of a patient which includes a base element such as the base element 10 or the base element 25.
  • a base element such as the base element 10 or the base element 25.
  • the method of the instant invention is herein described as it is applied with the base element 12, although it will be understood that the base element 25 could also be installed in accordance with the method . to form an effective dental prosthesis.
  • the anchor elements 14 and 16 are permanently installed on the teeth 18 and 20 in the gap 22.
  • the anchor elements 14 and 16 are preferably installed in a conventional manner by first drilling small holes in the sides of the teeth 18 and 20 which face the gap 22 and by then cementing the anchor- elements 14 and 16 to the teeth 18 and 20, respectively, so that the pins 28 on the anchor elements 14 and 16 extend into the drill holes in the teeth 18 and 20.
  • the portions of the teeth 18 and 20 which face the surfaces 30 on the anchor elements 14 and 16 are pref rably etched before the anchor elements 14 and 16 are cemented to the teeth 18 and 20 to provide effective bonding surfaces for the anchor elements 14 and 16, and thereafter the anchor elements 14 and 16 are preferably cemented to the teeth 18 and 20 with an effective and durable dental cement, such as a glass cement ionomer or a resin cement.
  • a study model of the teeth 18 and 20 with the anchor elements 14 and 16 thereon is preferably made in a conventional manner so that a portion of the remainder of the method can be effected outside of the mouth of the patient.
  • the base element 12 is assembled with the anchor elements 14 and 16 in the gap 22.
  • the instant invention provides an effective base structure for a dental prosthesis and an effective method of assembling and forming a dental prosthesis in the mouth of a patient.
  • the base elements 12 and 25 can be effectively adjusted to fit the widths of gaps in the mouths of patients, and the base elements 12 and 25 can be effectively utilized in the method of the instant invention for forming effective dental prostheses, such as the finished tooth 70.
  • the base elements 12 and 25 can be effectively and permanently supported on the anchor elements 14 and 16 to provide base structures for artificial teeth which are durable and which can be adapted to provide aesthetically pleasing replacement teeth in the mouths of patients.
  • the base element of the base structure is adjustable to fit the width of a gap in the mouth of a patient and also to compensate for minor misalignments in the adjacent teeth and- the positions of the anchor elements, the entire method can normally be performed in a dentist's office without requiring custom dental lab work. Accordingly, it is seen that the base structure of the instant invention and the method of forming an artificial tooth in accordance with the instant invention represent significant advancements in the dental art which have substantial commercial merit.

Landscapes

  • 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 Prosthetics (AREA)

Abstract

Structure de base (10) pour une prothèse dentaire comprenant un premier et un second éléments d'ancrage (14) et (16) pouvant être fixés de manière permanente à la dent sur les côtés opposés d'un espace ou vide (22), situé dans la structure de la dent d'un patient, et un élément de base (12) pouvant être fixé aux éléments d'ancrage (14) et (16) situés dans le vide (22) et comprenant une première et une seconde parties de l'élément de base (32) et (34) insérées de manière coulissante, de manière à ce que celui-ci s'élargisse pour s'ajuster à la largeur du vide (22). Le procédé de fixation et de formation d'une prothèse dentaire dans le vide (22), avec la structure de base (10), comprend les étapes de fixation des éléments d'ancrage (14) et (16) sur la dent sur les côtés opposés du vide (22), l'assemblage de l'élément de base (12) avec les éléments d'ancrage (14) et (16) dans le vide (22), la fixation ensemble des première et seconde parties (32) et (34) de l'élément de base, le façonnage d'un enrobage extérieur (68) sur l'élément de base (12) et la fixation de l'élément de base (12) avec l'enrobage extérieur (68) sur celui-ci, aux éléments d'ancrage (14) et (16).
PCT/US1987/000897 1986-02-24 1987-04-17 Prothese dentaire permanente et procede WO1988007843A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US06/832,769 US4661067A (en) 1986-02-24 1986-02-24 Permanent dental prosthesis and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/832,769 US4661067A (en) 1986-02-24 1986-02-24 Permanent dental prosthesis and method

Publications (1)

Publication Number Publication Date
WO1988007843A1 true WO1988007843A1 (fr) 1988-10-20

Family

ID=25262572

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1987/000897 WO1988007843A1 (fr) 1986-02-24 1987-04-17 Prothese dentaire permanente et procede

Country Status (1)

Country Link
WO (1) WO1988007843A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004049966A1 (de) * 2004-10-14 2006-04-20 Otto Huber Verfahren zur Verankerung von Zahnprothesen an Nachbarzähnen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4163318A (en) * 1977-03-21 1979-08-07 Pasquale Tigani Device for replacing missing teeth in human dentition
US4302187A (en) * 1977-05-23 1981-11-24 Yoon Han S Removable attachment for partial denture
US4348181A (en) * 1981-02-25 1982-09-07 Ipco Corporation Retaining device for a removable dental prosthesis
US4583948A (en) * 1984-04-27 1986-04-22 Elgarden Aktiengesellschaft Apparatus for connecting dental prostheses
US4609355A (en) * 1985-07-02 1986-09-02 Harvey Sr Arthur E Dental prosthesis and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4163318A (en) * 1977-03-21 1979-08-07 Pasquale Tigani Device for replacing missing teeth in human dentition
US4302187A (en) * 1977-05-23 1981-11-24 Yoon Han S Removable attachment for partial denture
US4348181A (en) * 1981-02-25 1982-09-07 Ipco Corporation Retaining device for a removable dental prosthesis
US4583948A (en) * 1984-04-27 1986-04-22 Elgarden Aktiengesellschaft Apparatus for connecting dental prostheses
US4609355A (en) * 1985-07-02 1986-09-02 Harvey Sr Arthur E Dental prosthesis and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004049966A1 (de) * 2004-10-14 2006-04-20 Otto Huber Verfahren zur Verankerung von Zahnprothesen an Nachbarzähnen
DE102004049966B4 (de) * 2004-10-14 2007-03-22 Otto Huber Mittel zur Verankerung von Zahnprothesen an Nachbarzähnen

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