Dentistry – Prosthodontics – Holding or positioning denture in mouth
Patent
1998-02-20
1999-12-07
Wilson, John J.
Dentistry
Prosthodontics
Holding or positioning denture in mouth
433 72, A61C 800
Patent
active
059972998
DESCRIPTION:
BRIEF SUMMARY
The invention relates to an anchor for prosthetic supraconstructions which anchor can be connected with an implant, as well as to an apparatus for aligning the anchor and to a supraconstruction, which can be connected with the anchor.
BACKGROUND OF THE INVENTION
For anchoring dental prostheses, spheres, crowns or similar anchoring heads are used, which are screwed directly into the implant, which is provided at its upper side with a coaxial connecting borehole with internal thread and are aligned coaxially with the implant. If, for reasons specific to a jaw, the implants for supporting dental prostheses cannot be aligned axially parallel to one another, compensatory measure must be taken and compensatory means used, in order to ensure that the prosthesis is seated satisfactorily and/or handled precisely when put in place and when removed. For this purpose, attachments between all diverging units are used in the case of fixed supraconstructions, whereas, for removable constructions, special secondary crown parts are used which have to be made especially and, after being put in place on their associated primary crowns, must compensate for their divergences. Because of the individual adaptation, such compensatory measures and means are exceptionally labor-intensive and costly and, moreover, represent a burden for the patient because of the frequency of the appointments that are necessary. Furthermore, in the case of attachments, there are always microgaps which permit movements which, from the point of view of a firm support for the implant, are undesirable.
SUMMARY OF THE INVENTION
It is an object of the invention to simplify the compensatory measures and means required to correct the necessarily diverging alignment of implants in the jaw and, with that, to shorten the time required for such measures and means and to make them less expensive.
The inventive adapter, which can be premanufactured industrially, provides an exceedingly simple possibility for the desired alignment of an anchoring head, independently of the alignment of an implant, and makes attachments and individually manufactured secondary crown parts superfluous. The alignment can be made exceedingly rapidly and, at the same time, precisely with the help of the inventive aligning device as a result of which the burden on the patient is reduced to one appointment. The inventive supraconstruction, in turn, can be premanufactured industrially and can be handled less expensively and more easily, because time-consuming dental measurements do not have to be made.
Numerous further advantages and details arise out of the following description and the drawing, in which an example of the object of the invention is illustrated in greater detail.
IN THE DRAWINGS
FIG. 1 shows an inventive adapter, inserted in an implant, in longitudinal section,
FIG. 2 shows a representation similar to that of FIG. 1, with a fixed connection piece,
FIG. 3 shows an individual representation of the implant in a section along the line III--III of FIG. 4,
FIG. 4 shows a plan view of FIG. 3,
FIG. 5 shows a representation of the adapter in a section along the line V--V of FIG. 6,
FIG. 6 shows a plan view of FIG. 5,
FIG. 7 shows a representation of ball head part, which can be connected with the adapter of FIG. 5.
FIG. 8 shows a representation of a crown head part, which can be connected with the adapter of FIG. 5,
FIG. 9 shows a truncated view of a drill for drilling a fixing hole in the connection piece of the adapter,
FIGS. 10a and 10b show views of fixing screws for fixing the connection piece in the mounting of the adapter,
FIG. 11 shows a representation of the inventive aligning device,
FIG. 12 shows an individual representation of an aligning element of the aligning device of FIG. 11 in longitudinal section,
FIG. 13 shows a truncated plan view of FIG. 12,
FIG. 14 shows a view of an aligning pin, which can be connected with the connection piece of the adapter and acts together with an aligning element,
FIG. 15 shows a representation of the adjusting nut in section a
REFERENCES:
patent: 1189753 (1916-07-01), Thue
patent: 1216596 (1917-02-01), Nishi
patent: 4832601 (1989-05-01), Linden
patent: 5073110 (1991-12-01), Barbone
patent: 5133662 (1992-07-01), Metcalfe
patent: 5215460 (1993-06-01), Perry
patent: 5302125 (1994-04-01), Kownacki et al.
patent: 5516288 (1996-05-01), Sichler et al.
patent: 5564922 (1996-10-01), Rosa et al.
patent: 5667384 (1997-09-01), Sutter et al.
patent: 5695334 (1997-12-01), Blacklock et al.
LandOfFree
Anchor for dental implants and device for the alignment of the a does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Anchor for dental implants and device for the alignment of the a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anchor for dental implants and device for the alignment of the a will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-817366