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VOLUME 10 , ISSUE 2 ( March, 2009 ) > List of Articles

RESEARCH ARTICLE

Marginal Adaptation of Root-end Filling Materials: An In vitro Study with Teeth and Replicas

Marilia Gerhardt de Oliveira, João Batista Blessmann Weber, Aline Tempel Costa, Francine Konrath, Berenice Dedavid

Citation Information : de Oliveira MG, Weber JB, Costa AT, Konrath F, Dedavid B. Marginal Adaptation of Root-end Filling Materials: An In vitro Study with Teeth and Replicas. J Contemp Dent Pract 2009; 10 (2):75-82.

DOI: 10.5005/jcdp-10-2-75

License: CC BY-NC 3.0

Published Online: 00-03-2009

Copyright Statement:  Copyright © 2009; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Aim

The purpose of this investigation was to evaluate the marginal adaptation of five root-end filling materials.

Methods and Materials

Fifty human single-rooted teeth were resected 3 mm from the apex. Root-end cavities were then prepared using an ultrasonic tip and filled with one of the following materials: silver amalgam without zinc, white MTA-Angelus, white Portland cement (PC), Vitremer™, and GC Fuji Ortho™ LC. The apical portion of the roots was then sectioned to obtain two 1 mm thick transversal sections. Epoxy resin replicas of these apical sections were fabricated for an analysis of marginal adaptation. Scanning electron microscopy (SEM) was used to determine gaps in the adaptation of the root-end filling materials at the interface between them and the dentin. The Kruskal-Wallis test and a multiple comparison test were used for statistical data analysis. The Spearman correlation coefficient was used to determine the correlation between the results found for teeth and replicas.

Results

Materials containing calcium oxide (MTA and PC) showed similar results. Resin modified glass ionomer cements (GICs) presented similar variations in marginal adaptation, but Vitremer™ showed significantly greater marginal adaptation when compared to GC Fuji Ortho™ LC.

Conclusion

A positive and significant correlation was observed between marginal adaptation values found in the teeth and their replicas.

Clinical Significance

The use of ionomers as root-end filling materials may improve clinical outcomes in periradicular surgery.

Citation

Costa AT, Konrath F, Dedavid B, Weber JBB, Oliveira MG. Marginal Adaptation of Root-end Filling Materials: An In vitro Study with Teeth and Replicas. J Contemp Dent Pract 2009 March; (10)2:075-082.


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