Document Detail

[The influence of macro- and microstructure on the surface wettability and retention properties of endodontic posts in vitro].
MedLine Citation:
PMID:  19807284     Owner:  NLM     Status:  MEDLINE    
Aesthetical and biomechanical requirements on fiber-reinforced endodontic posts play an important role in clinical application. Leading to a long-term clinical success, post systems must ensure an adequate force transmission and optimal retention behavior into the root channel. The aim of this study was to determine the microstructure and morphology of commonly used fiber reinforced endodontic posts in vitro. Post-specific fiber diameter, fiber arrangement over the cross-sections and length, and fiber-matrix ratio could be associated with mechanical properties, such as three-point bending strength and structure modulus. Furthermore, our investigation focused on the quantification of the wettability of the post surface. By using a modified contact-angle measurement, the meniscus on the post surface was characterized. In additional investigations, posts were inserted in artificial root channels and the extraction force was measured. The results show a strong correlation between the extraction force and the wettability of the post surface.
Felix Worm; Claudia Lurtz; Detlef Behrend; Lena Schmitt; Klaus-Peter Schmitz; Peter Ottl; Heinrich von Schwanewede
Publication Detail:
Type:  Comparative Study; English Abstract; Evaluation Studies; Journal Article    
Journal Detail:
Title:  Biomedizinische Technik. Biomedical engineering     Volume:  54     ISSN:  0013-5585     ISO Abbreviation:  Biomed Tech (Berl)     Publication Date:  2009 Aug 
Date Detail:
Created Date:  2009-10-07     Completed Date:  2009-11-10     Revised Date:  2010-11-05    
Medline Journal Info:
Nlm Unique ID:  1262533     Medline TA:  Biomed Tech (Berl)     Country:  Germany    
Other Details:
Languages:  ger     Pagination:  211-7     Citation Subset:  IM    
Poliklinik für Zahnärztliche Prothetik und Werkstoffkunde, Medizinische Fakultät, Universität Rostock, Germany.
Vernacular Title:
Der Einfluss der Makro- und Mikrostruktur auf die Benetzungs- und Retentionseigenschaften von Wurzelkanalstiften in vitro.
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MeSH Terms
Dental Prosthesis Design
Dental Stress Analysis
Equipment Failure Analysis
Post and Core Technique / instrumentation*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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