Comparative radiopacity of four lowviscosity composites

Authors

  • Micheli Tavares Imperiano School of Dentistry of PernambucoUPE,
  • Helen Jamil Khoury Federal University of Pernambuco-UFPE http://orcid.org/0000-0001-7257-0959
  • Maria Luiza Anjos Pontual Oral Diagnosis, School of Dentistry of Pernambuco-UPE
  • Marcos Antonio Japiassú Resende Montes Dental Materials, School of Dentistry of PernambucoUPE
  • Márcia Maria Fonseca Silveira Oral Diagnosis, School of Dentistry of Pernambuco-UPE, Camaragibe-PE

DOI:

https://doi.org/10.20396/bjos.v6i20.8642965

Keywords:

Low-viscosity composites. X-Ray. Densitometry. Radiopacity. Diagnosis

Abstract

The aim of this study was to evaluate the radiopacity of four commercially available low-viscosity composites. The lowviscosity composites used in this study were Natural Flow, Flow It, Filtek Flow and Protect Liner F. Five specimens of each material were made in stainless-steel ring moulds of 10 mm diameter and 2 mm height. One specimen of each material and a 10-step aluminium wedge were radiographed in an occlusal film. The reading of the optical density was performed in five different locations in each radiographed specimen. The net optical density was calculated, and then the mean values were obtained, and related with the equivalent thickness of aluminium. The radiopacities of each composite, in millimeters of aluminium were: Flow It (3.24 ± 0.17); Filtek Flow (2.25 ± 0.17); Natural Flow (1.50 ± 0.13); Protect Liner F (<1 mm/Al). Flow It and Filtek Flow presented an acceptable radiopacity according to the ISO Standard 4049. Natural Flow and Protect Liner F did not supply the requirements for radiopacity, thus, these materials could be confounded with secondary caries in some clinical applications, such as restorations or cavity lining.

 

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Author Biographies

Micheli Tavares Imperiano, School of Dentistry of PernambucoUPE,

Possui graduação em Farmácia pela Universidade Estadual da Paraíba (1999), graduação em Odontologia pela Universidade Estadual da Paraíba (2002) especialização em saúde coletiva, especialização em programa saúde da família e mestrado em Odontologia pela Universidade de Pernambuco (2004). Tem experiência na área de Auditoria em saúde e em Odontologia com ênfase em Dentística, atuando principalmente nos seguintes temas: prevenção, atendimento clínico odontológico, atendimento odontogeriátrico.

Helen Jamil Khoury, Federal University of Pernambuco-UFPE

possui bacharelado e licenciatura em Fisica pela Pontifícia Universidade Católica de São Paulo (1974), mestrado em Física pela Pontifícia Universidade Católica de São Paulo (1978) e doutorado em Fisica pela Pontifícia Universidade Católica de São Paulo (1981). Atualmente é professora titular do Departamento de Energia Nuclear da Universidade Federal de Pernambuco . Desenvolve pesquisas, ensino e atividades de extensão nas áreas de dosimetria e instrumentação nuclear, com ênfase em Aplicações Médicas das Radiações Ionizantes ( radiodiagnostico, medicina nuclear e radioterapia), metrologia das radiações ionizantes, detectores semicondutores e dosimetia termoluminescente e por Luminecência opticamente estimulada (OSL). Coordena atualmente o Laboratório de Metrologia das Radiações Ionizantes do DEN-UFPE . Foi diretora de pesquisa da UFPE e Presidente da Sociedade Brasileira de Proteção Radiológica (SBPR). Atualmente é presidente da Sociedade Brasileira de Dosimetria de Estado Sólido

Márcia Maria Fonseca Silveira, Oral Diagnosis, School of Dentistry of Pernambuco-UPE, Camaragibe-PE

especialista em Endodontia, Patologia Bucal, Radiologia.

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Published

2016-01-20

How to Cite

1.
Imperiano MT, Khoury HJ, Pontual MLA, Montes MAJR, Silveira MMF. Comparative radiopacity of four lowviscosity composites. Braz. J. Oral Sci. [Internet]. 2016 Jan. 20 [cited 2023 Jan. 30];6(20):1278-82. Available from: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8642965

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