DE2854138A1 - Upper or lower dental prosthesis - has base extending towards jaw with recesses of differing cross=section - Google Patents

Abstract

The upper or lower dental prosthesis has suction chambers of relatively large cross-section towards the jaw. The base of the prosthesis (2) towards the jaw has a large number of recesses (3, 4) of any desired shape but differing cross-sectional areas, their edges enclosing their openings being shaped to fit against the jaw. With an upper jaw prosthesis, there can be a larger number of deeper recesses of small cross-section near the alveolar extension, and a smaller number of larger cross-section and shallower ones at the soft gum (6).

Description

Formation of an upper and / or lower

Dental prosthesis and a process for their manufacture " the The invention relates to the formation of an upper and / or lower dental prosthesis Suction chambers directed towards the jaw have relatively large cross-sections in different Shaping, as well as a method for producing this training.

The options for total fixation of dentures are up to now in no way satisfactory for the majority of prosthesis wearers.

The earlier common use of Gunuli suckers for laying down of upper pieces often led to painful inflammation and permanent deformations of the palate.

By using modern techniques that the palate plate through E.g. kidney-shaped recesses, i.e. a separate one by forming suction chambers Conveying suction was partly in connection with the additional application of adhesives substantially reduce the need to use Rubber suckers achieved.

Obviously you cannot get rid of this completely Talking about the problem. Each jaw is presented to the dentist or the dental technician always the task of finding a different way on a case-by-case basis to get a Providing optimal solution to the patient, while determining whether the solution is optimal, unfortunately it often takes a long time to get used to it.

Even more difficult than the fixation of the lower part of the prosthesis and in The question of how to determine the problem arises The lower part.

Here the patient can only fall back on the usual adhesives, to find a temporary quasi-security and must be happy for the rest, when the lower alveolar process is well formed and through the hyoid bone the guidance of the prosthesis is not significantly disturbed.

So much for the state of the art.

It is now an object of this invention to provide an embodiment of an upper and / or lower dentures, especially total dentures according to the einyangs given classification in which the suction effect, i.e.

the adhesion of the upper and lower parts of the denture with simultaneous Reduction of the risk of the formation of flammable pressure points through delimiting Burrs, so-called large chambers, are avoided.

According to the invention this object is achieved in that the jaw prepared prosthesis base through a multitude of indentations of any shape, but different cross-sectional area, is structured, the individual Wells delimiting each with their edge area surrounding the open cross-section to the mucous membrane - according to the anatomical shape of the jaw - are formed.

This training eliminates the need to create less large-area, subdivided suction chambers, and the required adhesive effect is set by a variety of wells.

An interruption of the adjacent prosthesis surface to the mucous membrane, as it is given by the delimiting ridges of the large chambers and essentially The cause of the formation of fractures is, in a training according to the invention avoided, and the adhesion by a large number of small to very small absorbent effects Mediated depressions on the mucous membrane.

As a result, the prosthesis leaves essentially part of its surface or supported, so that a cutting of the suction chamber limit in the mucous membrane certainly with a simultaneous increase in the adhesive effect through enlargement the surface of the prosthesis is omitted.

Regarding the formation and arrangement of the depressions, it is noted that in Upper parts of the prosthesis opposite the area of the alveolar process - the one with a larger one Number of wells of smaller cross-section and great depth is equipped - the Area of the soft palate with a smaller number of indentations of larger cross-section and flatter training is provided.

This training comes from the basic design of the prosthesis, in the field of the soft palate become flatter, to a large extent against it. In the rest of it is on care that the surface of the prosthesis base remaining between the depressions is essentially smooth-surfaced in order to avoid possible hazards for the mucous membrane Further reduce irritation.

In the interests of simple production, it is provided that the depressions Have a cylindrical cross-section.

The process of forming an upper and lower denture provides that an approximately square plan showing, nubbed, thermoplastic Behavioral film - with three equipment areas in double diagonal division with knob-like same size and an equipment area with knobs in it different sizes are designed - with the three identically designed pieces of equipment is placed on the part of the intermediate positive corresponding to the alveolar process, and that then in the plastic prosthesis material introduced into the negative mold pressed in the film and this - with offset solution phase - and preservation of the Negative shape of the knobs transferred into the prosthesis material and this in known Way is polymerized.

This method enables the introduction of the Depressions in the denture base.

To use the method it is further provided that this is at Required relining of old dentures as part of the production of a normal Seat of the prosthesis is exercised in adaptation to changed jaw conditions.

The training of the procedure and its application is thus in full UmPang does justice to the task at hand.

The prosthesis is not only free of irritation but also increases the suction power for the upper piece by about 100% and for the lower piece by about 20 0 / to 30 %.

The invention is illustrated by the accompanying illustration of an example Design of a dental prosthesis upper part explained in more detail: Figure 1 shows the prosthesis in elevation as section A -inserted in the negative form.

FIG. 2 shows the prosthesis in plan, lying under a knobbed sheet.

In the dental prosthesis 1 are in their prosthesis base 2 open, to the jaw directed depressions 3/4 arranged, the depressions 3 in the area of the Alveolar process 5 has a greater depth with a smaller cross-section and the depressions 4 in the area of the soft palate 6 a smaller depth with a larger cross-section exhibit.

For the production of the prosthesis 1 it should be noted that the intermediate positive 13, which essentially corresponds to the prosthesis in its final shape, the nubby Foil 7 is placed in such a way that the area of the alveolar process 5 is covered with knobs relatively large height and small cross-section 8 and the area of the soft palate 6 by lower knobs larger cross section 9 is covered.

The intermediate positive 13 so occupied is now in the negative form 14 introduced, the knobs 8/9 being pressed into the plastic prosthesis mass. Then in a known manner after transferring the film mass into the prosthesis material this while maintaining the negative form 14, cier negative form 8/9 - the dimensions correspond to the desired indentations - polymerized.

The surface of the square, yenopped film 7 is as shown in the figure 2 corresponding to a double-diagonal division 10 with sectors 11 for the system of the intermediate positive 13 to the area of the aeolar process 5 and a sector 12 designed for contact with the area of the soft palate 6. The foil material is generally a mixture of polyvinyl acetate and polyvinyl pyrrolidones.

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Claims (6)

P a t e n t a n s p r ü c h e 1 Formation of an upper and / or Lower ailriprosthesis with a relatively large cross-section of the suction chamber directed towards the jaw in different shapes, characterized in that the jaw trimmed The base of the prosthesis (2) has a multitude of indentations (3/4) of any shape, however different cross-sectional area, is structured, with the individual depressions (3/43 delimiting each with their edge area surrounding the open cross-section to the mucous membrane - are designed according to the anatomical shape of the jaw. 2. Training according to claim 1, characterized in that d a ß in the case of upper prosthetic parts compared to the area of the alveolar process (5) - the one with a larger number of depressions (3) smaller cross-section and great depth is equipped - the area of the soft Palate (6) with a smaller number of depressions (4) and larger cross-section is provided flatter training. 3. Training according to claim 1 and 2, characterized in that d a ß the surface of the prosthetic bdsis (2) remaining between the depressions (3/4) is essentially smooth. 4. Training according to claim 1 to 3, characterized in that d a ß the depressions (3/4) have a cylindrical cross-section. 5. Method of forming upper and lower dentures according to claims 1 to 4, characterized in that d a ß an approximately square Nubbed, thermoplastic film (7) with a plan view - at the three equipment areas (11) with knobs in double diagonal division (10) like the same size and an equipment area (12) with knobs (9) in a different Size - with the three equally trained equipment items (11) the part of the intermediate pcJsitive corresponding to the alveolar process (5) (13) is applied, which is then converted into the plastic form introduced into the neyative form (1 * The foil (7) is pressed into the prosthesis material and this - with an offset solution phase - and preservation of the negative shape of the knobs (9) transferred into the prosthesis material and this is polymerized in a known manner. 6. Application of the method according to claim 5, characterized in that This is when the relining of old dentures is required as part of the manufacturing process normal fit of the prosthesis in adaptation to changed jaw conditions will.