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Evaluation of metal artefact reduction in cone-beam computed tomography images of different dental materials.
Queiroz, Polyane Mazucatto; Oliveira, Matheus Lima; Groppo, Francisco Carlos; Haiter-Neto, Francisco; Freitas, Deborah Queiroz.
Afiliação
  • Queiroz PM; Piracicaba Dental School, Department of Oral Diagnosis, Area of Oral Radiology, Piracicaba Dental School, University of Campinas, 901, Limeira Avenue, Piracicaba, Sao Paulo, 13414-903, Brazil. polyanequeiroz@hotmail.com.
  • Oliveira ML; Piracicaba Dental School, Department of Oral Diagnosis, Area of Oral Radiology, Piracicaba Dental School, University of Campinas, 901, Limeira Avenue, Piracicaba, Sao Paulo, 13414-903, Brazil.
  • Groppo FC; Department of Physiological Sciences, Area of Pharmacology, Piracicaba Dental School, University of Campinas, 901, Limeira Avenue, Piracicaba, Sao Paulo, 13414-903, Brazil.
  • Haiter-Neto F; Piracicaba Dental School, Department of Oral Diagnosis, Area of Oral Radiology, Piracicaba Dental School, University of Campinas, 901, Limeira Avenue, Piracicaba, Sao Paulo, 13414-903, Brazil.
  • Freitas DQ; Piracicaba Dental School, Department of Oral Diagnosis, Area of Oral Radiology, Piracicaba Dental School, University of Campinas, 901, Limeira Avenue, Piracicaba, Sao Paulo, 13414-903, Brazil.
Clin Oral Investig ; 22(1): 419-423, 2018 Jan.
Article em En | MEDLINE | ID: mdl-28536782
OBJECTIVE: The aim of this study is to evaluate the efficacy of metal artefact reduction (MAR) in different dental materials with Picasso Trio cone-beam computed tomography (CBCT) scanner. MATERIALS AND METHODS: Three imaging phantoms were custom-made of acrylic resin. Each phantom presented three cylinders of the same material: dental amalgam alloy, gutta-percha or aluminium-copper alloy. CBCT scans were performed on Picasso Trio unit with and without MAR, and artefact expression (standard deviation of grey values) was obtained and compared by Kruskal-Wallis and Student-Newman-Keuls (post hoc) (α = 0.05). RESULTS: Significant reduction of artefact expression (p < 0.05) was observed with MAR on areas around dental alloys. No significant difference (p > 0.05) was observed with or without MAR when gutta-percha was scanned. CONCLUSION: MAR was effective in reducing artefacts arising from dental alloys on CBCT images. CLINICAL RELEVANCE: Dental materials of high atomic number and density are widely used in dentistry and can produce artefact that compromise CBCT image. The present study demonstrated that metal artefact reduction algorithm is an effective tool to improve image quality.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Artefatos / Ligas Dentárias / Amálgama Dentário / Materiais Dentários / Tomografia Computadorizada de Feixe Cônico / Guta-Percha Idioma: En Revista: Clin Oral Investig Assunto da revista: ODONTOLOGIA Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Brasil País de publicação: Alemanha
Texto completo
Adicionar na Minha BVS
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Artefatos / Ligas Dentárias / Amálgama Dentário / Materiais Dentários / Tomografia Computadorizada de Feixe Cônico / Guta-Percha Idioma: En Revista: Clin Oral Investig Assunto da revista: ODONTOLOGIA Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Brasil País de publicação: Alemanha