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MINERVA STOMATOLOGICA

A Journal on Dentistry and Maxillofacial Surgery


Official Journal of the Italian Society of Odontostomatology and Maxillofacial Surgery
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Minerva Stomatologica 2008 June;57(6):295-300

language: English

Marginal adaptation and microleakage of five root-end filling materials: an in vitro study

Costa A. T. 1, Post L. K. 1, Xavier C. B. 2, Weber J. B. B. 3, Gerhardt-Oliveira M. 1

1 Department of Oral and Maxillofacial Surgery School of Dentistry Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
2 Department of Oral and Maxillofacial Surgery School of Dentistry Universidade Federal de Pelotas (UFPel) Pelotas, Brazil
3 Department of Public Health, School of Dentistry Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, Brazil


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Aim. Endodontic surgery consists of several procedures which involve the endodontic space or the root canal and is performed as an alternative to unsuccessful outcomes or complications following endodontic treatments. The aim of the study was to evaluate the sealing ability of five root-end filling materials.
Methods. Fifty human single rooted teeth were treated endodontically; roots were resected at 3 mm from the apex, and root end cavities were prepared with ultrasonic tips. Root ends were filled with one of the following materials: silver amalgam (control group); mineral trioxide aggregate; white Portland cement; Vitremer™; and Fuji Ortho™ LC. Apical sealing was evaluated by evaluating microleakage of 50% silver nitrate solution. The apical portion of the roots was sectioned to obtain 1-mm thick transversal slices, and epoxy resin replicas of these apical slices were produced. A scanning electron microscope (SEM) was used for analyses. The Kruskal-Wallis test and a multiple comparisons test were used for statistical data analysis.
Results. Results showed microleakage and variable adaptation gaps on the interface between dentin and root-end filling material in all specimens.
Conclusion. All the studied materials exhibited some degree of apical microleakage and marginal gaps. No correlation was found between data obtained from analyses of apical sealing and marginal adaptation.

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