Cast metal core adaptation using two impression materials and intracanal techniques

Authors

  • Sônia Maria Lemos Brancato Camarinha University of São Paulo
  • Luiz Carlos Pardini University of São Paulo
  • Lucas da Fonseca Roberti Garcia State University of Campinas
  • Simonides Consani State University of Campinas
  • Fernanda de Carvalho Panzeri Pires de Souza University of São Paulo

DOI:

https://doi.org/10.20396/bjos.v8i3.8642137

Keywords:

Impression technique, Cast posts, Silicone elastomers, Intraradicular support

Abstract

Aim: This study evaluated the adaptation of cast metal cores (CMCs) using two impression materials and two intracanal impression techniques. Methods: Ten single-rooted human teeth had their root canals prepared to receive a CMC. Intracanal impressions were obtained with addition and condensation silicone materials using two types of intraradicular supports: hypodermic needle or prefabricated polycarbonate posts. Four impressions were obtained from each tooth totalizing 40 models, on which CMCs were prepared. CMC adaptation to the canal was analyzed radiographically and microscopically. The teeth were radiographed with the CMC positioned and the images were analyzed using an image-analysis software (ImageLab). In the second analysis, the teeth were sectioned longitudinally and the CMC adaptation was evaluated with a two-coordinate microscope. In both analyses, CMC adaptation to the canal was determined by calculating the percentage of the prepared canal space that was occupied by the core. Results: Statistically significant difference (2-way ANOVA - Bonferroni; p<0.05) was found between the mean values CMC adaptation obtained with the two intraradicular supports. Conclusions: The intracanal impression technique using hypodermic needle allowed a more accurate reproduction of the prepared canal space and provided significantly better CMC adaptation when the cores were obtained from addition silicone impressions.

Downloads

Download data is not yet available.

Metrics

Metrics Loading ...

Author Biographies

Sônia Maria Lemos Brancato Camarinha, University of São Paulo

DDS, MS, Graduate student, Department of Dental Materials and Prosthodontics, Ribeirão Preto Dental School, University of São Paulo

Luiz Carlos Pardini, University of São Paulo

DDS, MS, PhD, Associate Professor, Department of Morphology, Stomatology and Physiology, Ribeirão Preto Dental School, University of São Paulo

Lucas da Fonseca Roberti Garcia, State University of Campinas

DDS, MS, Graduate student, Department of Restorative Dentistry, Dental Materials Area, Piracicaba Dental School, State University of Campinas

Simonides Consani, State University of Campinas

DDS, MS, PhD, Full Professor, Department of Restorative Dentistry, Dental Materials Area, Piracicaba Dental School, State University of Campinas

Fernanda de Carvalho Panzeri Pires de Souza, University of São Paulo

DDS, MS, PhD, Associate Professor, Department of Dental Materials and Prosthodontics, Ribeirão Preto Dental School, University of São Paulo

Downloads

Published

2015-12-04

How to Cite

1.
Camarinha SMLB, Pardini LC, Garcia L da FR, Consani S, Souza F de CPP de. Cast metal core adaptation using two impression materials and intracanal techniques. Braz. J. Oral Sci. [Internet]. 2015 Dec. 4 [cited 2022 Jun. 27];8(3):128-31. Available from: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8642137

Issue

Section

Article

Most read articles by the same author(s)

1 2 > >>