Publicação: Evaluation of efficiency of different imaging methods and softwares to analyse radiopacity of conventional bulk fill composite resins
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CNPQ::CIENCIAS DA SAUDE::ODONTOLOGIA
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Barcelos, Luciana Mendes
Resumo
AIM: This study aimed to present a laboratory device used for obtain standardized X-ray images
and used for analysis of resin composites using two radiographic methods and two imaging
process data.
METHODS AND MATERIALS: The device with lead protection and glass visor that stabilize the x-ray
tube and permitted the stabilization of the samples and different x-Ray films and sensors was
created. Specimens with 5.0mm in diameter and 2.0mm in thickness of 2 nanohybrid (Filtek Z350,
3M-ESPE and Vittra APS, FGM) and 4 bulk fill composites (Filtek Bulk fill Posterior, 3M-ESPE, Opus
Bulk Fill Regular (FGM), Opus Bulk fill flow (FGM), and Tetric Evoceram Bulk fill (Ivoclar Vivadent)
were tested. The x-ray images were obtained positioning one sample for each resin composite and
aluminium step wedge over two sensors: direct digital sensor (Acteon) and Phosphor Plate
(VistaScan, Dürr Dental). Images were analysed using two software’s (Image J and DBSWIN, Dürr
Dental) to calculate the radiopacity level comparing resin composites and also with the aluminium
step wedge. Data were analysed by three-way ANOVA followed by Tukey test (=0.05).
RESULTS: The developed devise was efficient to protect secondary radiation and to standardize
the x-ray images. All resin composite showed recommended radiopacity level irrespective of the
radiographic method or software analysis.
CONCLUSION: Bulk fill and conventional composite resins exhibit variability in radiopacity, with
values considered above the dentin values. Radiographic methods and software tested showed
similarity ranking capacity for radiopacity of the composite resins, changing only the calculated
values. The device was able to standardize the different radiographic methods used in this in vitro
study to assess radiopacity of restorative materials.
Abstract
Palavras-chave
Digital X-ray, Radiopacity, Bulk fill composite resin
Citação
GOULART, João Vítor. Evaluation of efficiency of different imaging methods and softwares to analyse radiopacity of conventional bulk fill composite resins. 2019. 17 f. Trabalho de Conclusão de Curso (Graduação em Odontologia) – Universidade Federal de Uberlândia, Uberlândia, 2019.