10.10.2024
Reading time: 5 min
Theme: Experience, Techniques
Bepaling van de A-lijn

Een bijdrage van Sabine von Sinner

Voor een betere hechting van de bovenkaakprothese in de mond adviseren wij bij een uitneembare volledige prothese de zogenaamde 'Gaumensegeldamm' (gehemeltedam of -afdichting) te bepalen.

To better understand what it is, here is a definition:* This is a thickening of the edge of a maxillary full denture that occurs with a registration under pressure of the soft tissue on the base with the hard tissue and makes a permanent and firm contact with the soft tissue.

In this case, an open edge is required on the rear or inner edge of the prosthesis, which guarantees the continuity of the functional edge and seals it.

Deze dam zorgt er mede voor dat er geen lucht en/of voedsel tussen de prothese en het slijmvlies kunnen kunnen.

Although this area is individual for each patient and varies depending on the level of the soft tissue and the density of the soft tissue in the area of the vetweefselzones, it must be assessed by the practitioner. In the tandartsstoel hij het zachte gehemelte kan visualiseren en overbrengen op het alginaat van de primaire afdruk.

With the model that is used in the laboratory, the tandtechnicus can prepare individual printing presses that have to be a little longer than the specified grids. The purpose of this is to control the printing material, so that this material is regulated during the functional printing. Na de functionele afdruk wordt het definitieve model gemaakt en de behandelaar radeert de plaats van de zogenaamde gehemeltedam. For the esthetic procedure it is important to control this position.

If the aniline pencil is no longer in place, a surgical marker can be used or a small amount of water/zinc oxide emulsion that is applied with a disposable brush to the base of the thin zone of the tooth.

De pasvorm wordt weer in de mond geplaatst en de lengte wordt op basis van de constructie gecontroleerd. When the wheel is laid, the nonwoven fabric must be in constant contact with the structure under all loads. Static positie, slikken, fonatie, gesproken 'A', ...

At the front edge, the anterior line of the coated material is overexposed with the lines between the hard and soft coated material. In the moon, it can be recognized by its different colors: the wide-spaced fleece is more red and the wide-spaced fleece is more red. Het heeft vaak de vorm van een 'snor' en kan worden uitgebreid naar de vetweefselzones als deze dat toelaten. De behandelaar moet de contour en dikte beoordelen.

Om een perfect raderen te bereiken, moet men een instrument gebruiken dat lijkt op een 'LeCron' en het dorsale, diepere gedeelte raderen zonder de grens te overschrijden.

In turn, the middle section is straightened, with the upper part of the plate, to the anterior line, where it ends in the front of an amorboog. When het mogelijk is en de behandelaar daarom vrauagt, wordt het raderen uitgebreid in de vooraf bepaalde vetweefselzones.

Links en rechts eindigt het raderen bij het kleine vooruitstekende gedeelte, dat door de hamulus pterygoideus wordt veroorzaakt.

Bronnen en referenties:

    • Prothèse complète Clinique et Laboratoire. Michel Pompignoli Didier Raux Jean-Yves Doukhan
    • Stratégie Prothétique vol 18 N°2 mise au point. Christophe Rignon Bret
    • lexique des termes de prothèse dentaire. Eveline Batarec
    • Prothèse complète réalité clinique solutions thérapeutique. Olivier Hüe, Marie-Violaine Berteretche.
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