Fracture strength of premolars restored with direct and indirect composite restorations

Authors

  • Renata dos Santos Teixeira
  • Carlos Braga ULBRA Cachoeira do Sul
  • Celso Afonso Klein-Jr ULBRA Cachoeira do Sul
  • Fabio Herrmann Coelho-de-Souza UFRGS

DOI:

https://doi.org/10.22456/2177-0018.9240

Keywords:

Composite resins, Compressive strength, Dental restoration, Permanent

Abstract

The aim of this study was to evaluate the fracture strength of restored teeth with direct composite resin (Filtek P60 – 3M/ESPE) and composite inlays (BelleGlass - sds/Kerr), in MOD cavities. Thirty two maxillary premolars were divided in four equal groups: group 1 - sound teeth; group 2 – MOD cavity restored with P60 composite resin; group 3 – MOD cavity restored with BelleGlass; and group 4 - MOD prepared teeth (no restoration). All specimens were tested in relation to fracture strength, in universal testing machine, with 0,5 mm/min cross-head speed. Data were statistically analyzed by ANOVA and Tukey tests, with a significance level of 1%. Results showed statistically significant differences among all groups: group 1 showed better performance than group 2, which one had better performance than group 3, which one had better performance than group 4. It was concluded that MOD cavities decreased fracture strength; direct and indirect adhesive restorations improved fracture strength, when compared to prepared teeth (no restoration). Direct restoration showed better behavior than inlays, in relation to fracture strength.

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Author Biographies

Renata dos Santos Teixeira

Cirurgiã-dentista, clínica particular

Carlos Braga, ULBRA Cachoeira do Sul

Mestre em Prótese, Professor de Clínica Integral ULBRA Cachoeira do Sul

Celso Afonso Klein-Jr, ULBRA Cachoeira do Sul

Mestre em Dentística, Doutor em Ciência dos Materiais. Professor de Clínica Integral ULBRA Cachoeira do Sul

Fabio Herrmann Coelho-de-Souza, UFRGS

Eoutor em Dentística. Professor de Dentística e Clínicas Integrais ULBRA Cachoeira do Sul

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Published

2009-04-14

How to Cite

Teixeira, R. dos S., Braga, C., Klein-Jr, C. A., & Coelho-de-Souza, F. H. (2009). Fracture strength of premolars restored with direct and indirect composite restorations. Revista Da Faculdade De Odontologia De Porto Alegre, 50(2), 22–25. https://doi.org/10.22456/2177-0018.9240

Issue

Vol. 50 No. 2 (2009)

Section

Original articles

License

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