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Does an intracanal composite anchorage replace posts?

Krastl, Gabriel ; Izquierdo, Andres ; Büttel, Leonard ; Zitzmann, Nicola ; Schmitter, Marc ; Weiger, Roland

In: Clinical Oral Investigations, 2014, vol. 18, no. 1, p. 147-153

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    Titre
    • Does an intracanal composite anchorage replace posts?
    Auteur
    • Krastl, Gabriel. Department of Periodontology, Endodontology and Cariology, University of Basel, Switzerland, Hebelstrasse 3, CH-4056, Basel, Switzerland
    • Izquierdo, Andres. Department of Periodontology, Endodontology and Cariology, University of Basel, Switzerland, Hebelstrasse 3, CH-4056, Basel, Switzerland
    • Büttel, Leonard. Department of Periodontology, Endodontology and Cariology, University of Basel, Switzerland, Hebelstrasse 3, CH-4056, Basel, Switzerland
    • Zitzmann, Nicola. Department of Periodontology, Endodontology and Cariology, University of Basel, Switzerland, Hebelstrasse 3, CH-4056, Basel, Switzerland
    • Schmitter, Marc. Department of Prosthodontics, University of Heidelberg, Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
    • Weiger, Roland. Department of Periodontology, Endodontology and Cariology, University of Basel, Switzerland, Hebelstrasse 3, CH-4056, Basel, Switzerland
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • Clinical Oral Investigations, 2014, vol. 18, no. 1, p. 147-153. Springer Berlin Heidelberg
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:326310
    Summary
    Objectives: This study aims to assess the effectiveness of an intracanal composite anchorage to replace conventionally cemented titanium or bonded glass fibre posts. Materials and methods: Post space preparation was performed up to depths of 6mm (groups 1 and 2) and 3mm (group 3) in root filled mandibular premolars. In group 1, titanium posts were cemented with zinc phosphate cement. Glass fibre posts were adhesively cemented in group 2 using a dual-cure composite resin. In group 3, intracanal anchorage was solely performed with a dual-cure composite. All teeth were restored with standardised direct composite crowns without a ferrule. After thermo-mechanical loading, static load was applied until failure. Fracture patterns were assessed, and a microscopic analysis was performed to analyse the occurrence of additional cracks. Results: Group 2 revealed a significantly higher median fracture value (408N) than groups 1 and 3, while no difference was detected between group 1 (290N) and group 3 (234N) (p = .1417). In group 3, the more favourable fracture patterns were observed. However, the majority of teeth within this fracture category revealed additional minor cracks of the root. Conclusions: Within the limitations of this study, adhesive intracanal anchorage to a depth of 3mm with resin composite only has the same fracture resistance as titanium posts conventionally cemented to a depth of 6mm. Even teeth with repairable main fractures exhibited additional dentinal cracks on the root. Clinical relevance: Additional dentinal root cracks in the teeth with repairable main fractures may considerably impair their longevity.