WO1993011717A1 - Piece d'insertion intra-osseuse en odontologie - Google Patents

Piece d'insertion intra-osseuse en odontologie Download PDF

Info

Publication number
WO1993011717A1
WO1993011717A1 PCT/IT1992/000163 IT9200163W WO9311717A1 WO 1993011717 A1 WO1993011717 A1 WO 1993011717A1 IT 9200163 W IT9200163 W IT 9200163W WO 9311717 A1 WO9311717 A1 WO 9311717A1
Authority
WO
WIPO (PCT)
Prior art keywords
insert
plates
threaded hole
conical surface
hole
Prior art date
Application number
PCT/IT1992/000163
Other languages
English (en)
Inventor
Renzo Zambello
Original Assignee
Renzo Zambello
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
Application filed by Renzo Zambello filed Critical Renzo Zambello
Publication of WO1993011717A1 publication Critical patent/WO1993011717A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
    • A61C8/0033—Expandable implants; Implants with extendable elements

Definitions

  • the present invention concerns a particular insert, designed to be used in odotology.
  • the invention relater to an insert for endosseous implantation and for a successive anchorage of a dental prosthesis thereto.
  • the present prosthesis implants are formed by two parts: a “foreign body”, that is inserted completely in the bone, and a prosthesis, fixed to the foreign body.
  • That body of course biocompatible, is positioned by opening and d ⁇ collement of the gingiva; a bigger or smaller strip of gingiva is moved according to the used method *
  • any type of "foreign body" inserted with any type of "foreign body" inserted, with any insertion method being used and any therapy being applied after the operation, it is important that a sufficient bone recovery be awaited before the dental prosthesis is applied to the implantation, so that it well holds what has been embedded in it.
  • the total time of bone recovery is about eighteen months, , but in the present state of knowledge ⁇ in order to be able to support the prothesis, a period of 6 months is sufficient, insofar as during such time the bone reaches an advanced phase of recovery.
  • some dentist covers the implantation by closing it under the strip of gingival mucosa (submerged implantation), others do not share such a solution that demands two operations on the gingiva. In any case the problem lies in avoiding as much as possible the danger of post-operation infection.
  • the object of the present invention is to obtain the best anchorage and therefore, an immediate stability of the insert, and to aid a rapid and complete regeneration of osseous tissue, thus reducing the waiting time before the permanent application of the prosthesis.
  • the above object is obtained by an insert for endosseous implantation in odontology, that comprises an upper part, with a through threaded hole adapted for allowing the access for a tightening means and for subsequently applying a dental prosthesis thereto, and a lower part designed to be inserted in at least a recess located in the position where the insert must be placed.
  • the recess preferably has an annular shape so as to form a central osseous tissue protrusion therein;
  • the lower part can be expanded by the operation of expanding means so as to push outwardly on the inside wall of the recess and to provoke a depression on the corresponding regions of the central protrusion.
  • the subject insert performs a dynamic action, on one side with ' progressive tissue- compression such that it determines the activation of the osteoclasts, and on the other side with progressive depression, to activate the osteoblasts. This dynamic action is possible due to a particular insert used.
  • the tooth presses (although with relatively modest intensity) the bone from the part on which the force acts, while from the other part a state of depression is created.
  • the osteoclasts which are cells of bone reabsorption, are activated; in the other part (the depressed zone) the osteoblasts, i.e. the cells that reform the missing osseous tissue, are activated.
  • the insert is set by the implantation and, if necessary, during the subsequent check visits. In this manner r instead of waiting passively until the osseous tissue fills interstices, as in the single block implantation, the natural tendency of the bone, that is subjected to differentiated pressure in different regions, is stimulated.
  • the bone actively reshapes itself following the direction of the pressure, producing osteoclasts in the side under the pressure and regenerating itself, due to the osteoblasts activation, in the opposit side.
  • the Figures 1 and 2 show two different perspective views of the insert, sectioned with a longitudinal intermediate plane.
  • the Figure 3 shows a longitudinal section of the insert.
  • the Figures 6 and 7, show respectively a perspective sectioned view and a longitudinal section of a possible version of the insert.
  • the insert subject of the present invention comprises two parts, namely an upper part 1 and a lower part 2, as indicated in the Figures.
  • the upper part 1 of the insert has a threaded through hole 2 , for subsequent application of the prosthesis thereto.
  • Reference numeral 3 indicates the roots of the insert that are constituted by the expandable plates, subdivided by slits 4.
  • the expansion of the roots is obtained, in the illustrated example, by screwing a dowel 9 in the threaded hole 5.
  • the tip of the dowel upon its rotation, provokes the expansion of the roots by pushing on the conical surface 6 inside the expandable plates.
  • the insert body can have a weakened section, e.g. with a smaller thickness, as shown in the figures, located in the middle part.
  • At least one recess is made in the maxillary bone or in the mandible bone as it is needed; the recess has an annular shape, so that a a central osseous tissue protrusion remains formed therein.
  • the expansion of the roots is obtained by screwing the dowel up to meet the resistance of the bone .
  • the dowel can be actuated through the hole 2 made in the upper part, through which a tightening means, in form of a proper tool, is made to pass.
  • the roots can be expanded some more.
  • This procedure can be repeated more times, until the wanted position is reached and the sufficient recovery of the bone has occurred.
  • a mobile wedge shaped member 7 is slidingly located inside the section delimited by the said conical surface 6.
  • This member 7 can be moved upwards by means of a threaded rod 11 screwed in a threaded axial hole 8 made in the same member 7.
  • the roots press (although with relatively modest intensity) the bone onto the internal surface of the recess while on the corresponding surface of the central protrusion a state of depression is created.
  • the osteoclasts which are cells of bone reabsorption, are activated; in the other part (the depressed zone) the osteoblasts, i.e. the cells that reform the missing osseous tissue, are activated.
  • Another important advantage results from the possibility of registering gradually and at more times the position of the roots, avoiding in this way the involvement of the mandibular nerve in particular, and maxillary sinus.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Orthopedic Medicine & 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)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

Pièce d'insertion (1, 10) conçue pour être utilisée en odontologie dans l'implantation intra-osseuse et l'ancrage d'une prothèse. Elle produit un effet dynamique en comprimant de manière progressive le tissu osseux d'un côté afin d'activer les ostéoclastes, et en le décomprimant de l'autre côté afin d'activer les ostéoblastes, le tissu osseux étant ainsi régénéré de manière plus rapide et complète. Par conséquent, on peut réduire le temps d'attente avant la mise en place de la prothèse, et on obtient un ancrage plus proche de l'ancrage physiologique. On réalise l'effet de compression à l'aide d'éléments radiculaires (3) réglables lors de l'implantation de la pièce d'insertion et lors des consultations de contrôle ultérieures.
PCT/IT1992/000163 1991-12-16 1992-12-16 Piece d'insertion intra-osseuse en odontologie WO1993011717A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPS91A000019 1991-12-16
ITPS910019A IT1253519B (it) 1991-12-16 1991-12-16 Inserto per implantologia endossea in odontoiatria.

Publications (1)

Publication Number Publication Date
WO1993011717A1 true WO1993011717A1 (fr) 1993-06-24

Family

ID=11396385

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT1992/000163 WO1993011717A1 (fr) 1991-12-16 1992-12-16 Piece d'insertion intra-osseuse en odontologie

Country Status (3)

Country Link
AU (1) AU3266093A (fr)
IT (1) IT1253519B (fr)
WO (1) WO1993011717A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0635246A1 (fr) * 1993-07-19 1995-01-25 ESKA Implants GmbH & Co. Cheville pour la fusion de corps vertébraux
WO1996035393A1 (fr) * 1995-05-12 1996-11-14 Ernst Bauer Implant pour machoire
EP0760635A1 (fr) * 1994-05-13 1997-03-12 Frederick N. Hanosh Implant dentaire extensible et son procede de fabrication
US6350126B1 (en) * 2000-09-01 2002-02-26 Ricardo Levisman Bone implant

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3708883A (en) * 1971-01-04 1973-01-09 S Flander Dental implant and method for using the same
AT393214B (de) * 1990-02-15 1991-09-10 Katzenbeisser Karin Kieferhoehlenimplantat

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3708883A (en) * 1971-01-04 1973-01-09 S Flander Dental implant and method for using the same
AT393214B (de) * 1990-02-15 1991-09-10 Katzenbeisser Karin Kieferhoehlenimplantat

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0635246A1 (fr) * 1993-07-19 1995-01-25 ESKA Implants GmbH & Co. Cheville pour la fusion de corps vertébraux
EP0760635A1 (fr) * 1994-05-13 1997-03-12 Frederick N. Hanosh Implant dentaire extensible et son procede de fabrication
EP0760635A4 (fr) * 1994-05-13 1999-03-17 Frederick N Hanosh Implant dentaire extensible et son procede de fabrication
WO1996035393A1 (fr) * 1995-05-12 1996-11-14 Ernst Bauer Implant pour machoire
US6007337A (en) * 1995-05-12 1999-12-28 Bauer; Ernst Jaw implant
US6350126B1 (en) * 2000-09-01 2002-02-26 Ricardo Levisman Bone implant

Also Published As

Publication number Publication date
ITPS910019A1 (it) 1993-06-16
IT1253519B (it) 1995-08-08
AU3266093A (en) 1993-07-19
ITPS910019A0 (it) 1991-12-16

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