How does the etching duration with phosphoric acid affect the behavior of tooth-colored composite fillings in anterior teeth? A clinical study
Résumé de l'étude
When providing a tooth with a composite filling, the tooth must be pre-treated. The pre-treatment ensures that the filling adheres well to the tooth. The standard pre-treatment of the tooth is done by applying a special gel for a short time. This gel contains phosphoric acid. Currently, it is unclear what the optimal exposure time of the phosphoric acid gel is. In this clinical study, we investigate how the duration of the exposure time of the phosphoric acid gel affects the susceptibility of the fillings to marginal discoloration. Furthermore, we examine how the anterior tooth fillings behave over time in this study.
(BASEC)
Intervention étudiée
In our study, participants are randomly assigned to groups. This is important to obtain reliable results from the study. Each group receives a different treatment. In our study, there are 2 groups:
- Group 1 (Experimental group): In this group, the phosphoric acid gel is applied simultaneously to the enamel (the outer layer of the tooth) and the dentin (the tooth substance located beneath the enamel). The exposure time of the gel is a total of 10 seconds on both the enamel and the dentin.
- Group 2 (Control group): In this group, the phosphoric acid gel is first applied to the enamel and only shortly thereafter to the dentin. The exposure time of the gel is 15-30 seconds on the enamel and 10-15 seconds on the dentin.
(BASEC)
Maladie en cours d'investigation
Adults often have anterior teeth that require a composite filling. Such a composite filling may be necessary due to caries (a 'cavity' in the tooth), a defective filling that needs to be replaced, or due to a desired shape change of an anterior tooth. When a composite filling is needed, one typically receives a tooth-colored composite filling.
(BASEC)
18 years old or older Need for an anterior tooth filling Tooth with a healthy dental nerve (BASEC)
Critères d'exclusion
Tooth unsuitable for a composite filling Tooth defect due to an accident, where the incisal edge was also damaged Allergy to components of composite fillings (BASEC)
Lieu de l’étude
Bâle
(BASEC)
Sponsor
UZB | University Center for Dental Medicine Basel Department of Periodontology, Endodontology, and Cariology University of Basel Mattenstrasse 40 CH-4058 Basel
(BASEC)
Contact pour plus d'informations sur l'étude
Personne de contact en Suisse
Florin Eggmann
+41 61 267 26 80
florin.eggmann@clutterunibas.chUZB | University Center for Dental Medicine Basel Department of Periodontology, Endodontology, and Cariology University of Basel Mattenstrasse 40 CH-4058 Basel
(BASEC)
Informations scientifiques
non disponible
Nom du comité d'éthique approbateur (pour les études multicentriques, uniquement le comité principal)
Ethikkommission Nordwest- und Zentralschweiz EKNZ
(BASEC)
Date d'approbation du comité d'éthique
22.04.2025
(BASEC)
Identifiant de l'essai ICTRP
non disponible
Titre officiel (approuvé par le comité d'éthique)
Effect of Phosphoric Acid Etching Duration on the Performance of Direct Res-in-Based Composite Restorations in Permanent Anterior Teeth: A Randomized Controlled Single-Center Trial (BASEC)
Titre académique
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Titre public
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Maladie en cours d'investigation
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Intervention étudiée
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Type d'essai
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Plan de l'étude
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Critères d'inclusion/exclusion
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Critères d'évaluation principaux et secondaires
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Date d'enregistrement
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Inclusion du premier participant
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Sponsors secondaires
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Contacts supplémentaires
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ID secondaires
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Résultats-Données individuelles des participants
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Informations complémentaires sur l'essai
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Résultats de l'essai
Résumé des résultats
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Lien vers les résultats dans le registre primaire
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