Linear polymerization shrinkage of Bulk Fill resins

  • Tereza Cristina Correia Universidade de Pernambuco
  • Rodivan Braz da Silva University of Pernambuco
  • Manassés Tercio Vieira Grangeiro Centro Universitário Doutor Leāo Sampaio
  • Helen Tayná Noca de Souza Centro Universitário Doutor Leão Sampaio
  • Lorem Krsna de Morais Sousa Centro Universitário Doutor Leão Sampaio
  • Diala Aretha de Sousa Feitosa Centro Universitário Doutor Leão Sampaio

Resumo

Abstract Objective: the objective of the present study was to analyze the polymerization shrinkage gap of different composite resins. Methods: four commercial brands (n=5) were tested: Z350 (3M/ESPE); Filtek Bulk Fill (3M/ESPE); Surefill (Dentsply); Xtra Base (Voco). Increments of composite resins were inserted into a circular metal matrix of 7 mm internal diameter and 4 mm high and pressed by two glass plates supported on polyester strips. After photoactivation with a Optilight Plus device (Gnatus), with light intensity of 1000 ± 10mW/cm2, the test samples were polished and 24h later, taken to the scanning electron microscope for analysis of the polymerization shrinkage gap, measured at 4 points in the sample (3, 6, 9, and 12 o’clock). The data were analyzed by analysis of variance (Anova one-way). Results: the highest mean of polymerization shrinkage gap was observed for Filtek Z350 (3M/ESPE), while the lowest mean of gap was found for Xtra Base (Voco) brand, with significant differences between the groups. Conclusion: the inorganic filler content and different associations in the organic matrices interfered expressively in the polymerization shrinkage gap. Keywords: Composite resins. Bulk Fill resins. Polymerization shrinkage.

Biografia do Autor

Tereza Cristina Correia, Universidade de Pernambuco
PhD Department of Dentistry, University of Pernambuco, Pernambuco, Recife, Brazil
Rodivan Braz da Silva, University of Pernambuco
PhD Department of Dentistry, University of Pernambuco, Pernambuco, Recife, Brazil
Manassés Tercio Vieira Grangeiro, Centro Universitário Doutor Leāo Sampaio
Academic, Department of Dentistry, Centro Universitário Doutor Leāo Sampaio, Ceará, Juazeiro do Norte, Brazil
Helen Tayná Noca de Souza, Centro Universitário Doutor Leão Sampaio
Academic, Department of Dentistry, Centro Universitário Doutor Leāo Sampaio, Ceará, Juazeiro do Norte, Brazil
Lorem Krsna de Morais Sousa, Centro Universitário Doutor Leão Sampaio
Academic, Department of Dentistry, Centro Universitário Doutor Leāo Sampaio, Ceará, Juazeiro do Norte, Brazil
Diala Aretha de Sousa Feitosa, Centro Universitário Doutor Leão Sampaio
PhD, Department of Dentistry, Centro Universitário Doutor Leāo Sampaio, Ceará, Juazeiro do Norte, Brazil
Publicado
2018-06-12
Como Citar
Correia, T., da Silva, R., Grangeiro, M., de Souza, H., Sousa, L., & Feitosa, D. (2018). Linear polymerization shrinkage of Bulk Fill resins. Revista Da Faculdade De Odontologia - UPF, 22(3). https://doi.org/10.5335/rfo.v22i3.7733
Seção
Artigos