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Tropical Dental Journal - 1st Pan African international dental journal


Tropical Dental Journal



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Published in French in Tropical Dental Journal Volume 28 - September 2005 pages 17-22

Why should we use plaster for the prime impression in complete removable prosthodontics ?Why should we use plaster for the prime impression in complete removable prosthodontics ? est évalué 1 étoiles par les abonnés Tropical Dental Journal Online

Article Open access

Authors : NJ KOFFI, KG KOFFI, KD ASSI - Ivory Coast


Résumé

La réussite d’une restauration prothétique amovible totale commence par une bonne empreinte primaire. L’empreinte primaire mucostatique qui sera complétée par une empreinte secondaire fonctionnelle est la meilleure solution. Et le matériau le mieux indiqué pour atteindre les objectifs assignés est le plâtre à empreinte. Une revue de la littérature sur trois décennies nous montre que de par ses qualités non compressives, sa stabilité dimensionnelle, sa fidèle reproduction des détails, transcendent largement la difficulté d’emploi, en adoptant la technique simple décrite par Rignon-Bret. Nos pratiques cliniques ont révélé une meilleure stabilité des prothèses en adoptant cette méthode. C’est pourquoi, nous proposons aux praticiens de pays moins nantis où le suivi thérapeutique des patients n’est pas évident par faute de moyens, de réaliser les empreintes primaires de prothèse amovible totale au plâtre.

Abstract
Why should we use plaster for the prime impression in complete removable prosthodontics ?

This thirty years literature review about removable complete denture prime impressions show that the plaster static impression is better. This product doesn’t induce abnormal pressure on the biologic and anatomic support structures of the prosthesis. The plaster for impression physical properties is adapted to reproduce the details needed by the laboratory to manufacture the individual impression tray for the definitive functional impression. The only precaution is to follow the method. Our clinical experiences advise us to propose Rignon-Bret simple plaster impression techniques. The one case where it is forbidden is when the patient has recently been treated by radiotherapy. All the other materials induce irritated pressure on the alveolar bone and consequently the second functional pressure added the stability of the denture may be defected.

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