Chemical analysis and Vickers hardness of orthodontic mini-implants

  • Christiane Cavalcante Feitoza Centro Universitário de Araraquara – UNIARA
  • Guilherme José Pimentel Lopes de Oliveira Universidade Estadual Paulista – UNESP
  • Rafael Leonardo Xediek Consani Universidade Estadual de Campinas – UNICAMP
  • Eloisa Marcantonio Boeck Centro Universitário de Araraquara – UNIARA
  • Karina Eiras Dela Coleta Pizzol Centro Universitário de Araraquara – UNIARA
  • Nadia Lunardi Centro Universitário de Araraquara – UNIARA

Abstract

Orthodontic mini-implants are used in clinical practice to provide efficient and aesthetically-pleasing anchorage. Aim: To evaluate the hardness (Vickers hardness) and chemical composition of miniimplant titanium alloys from five commercial brands. Methods: Thirty self-drilling mini-implants, six each from the following commercial brands, were used: Neodent (NEO), Morelli (MOR), Sin (SIN), Conexão (CON), and Rocky Mountain (RMO). The hardness and chemical composition of the titanium alloys were performed by the Vickers hardness test and energy dispersive X-ray spectroscopy, respectively. Results: Vickers hardness was significantly higher in SIN implants than in NEO, MOR, and CON implants. Similarly, VH was significantly higher in RMO implants than in MOR and NEO ones. In addition, VH was higher in CON implants than in NEO ones. There were no significant differences in the proportions of titanium and aluminum in the mini-implant alloy of the five commercial brands. Conversely, the proportion of vanadium differed significantly between CON and MOR/NEO implants. Conclusions: Mini-implants of different brands presented distinct properties of hardness and composition of the alloy

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Author Biographies

Christiane Cavalcante Feitoza, Centro Universitário de Araraquara – UNIARA
Centro Universitário de Araraquara – UNIARA, Department of Dentistry, Area of Orthodontics, Araraquara, SP.
Guilherme José Pimentel Lopes de Oliveira, Universidade Estadual Paulista – UNESP
Universidade Estadual Paulista – UNESP, Araraquara Dental School, Department of Diagnosis and Surgery, Area of Periodontology, Araraquara, SP.
Rafael Leonardo Xediek Consani, Universidade Estadual de Campinas – UNICAMP
Universidade Estadual de Campinas – UNICAMP, Piracicaba Dental School, Department of Oral Rehabilitation, Piracicaba, SP.
Eloisa Marcantonio Boeck, Centro Universitário de Araraquara – UNIARA
Centro Universitário de Araraquara – UNIARA, Department of Dentistry, Area of Orthodontics, Araraquara, SP.
Karina Eiras Dela Coleta Pizzol, Centro Universitário de Araraquara – UNIARA
Centro Universitário de Araraquara – UNIARA, Department of Dentistry, Area of Orthodontics, Araraquara, SP.
Nadia Lunardi, Centro Universitário de Araraquara – UNIARA
Centro Universitário de Araraquara – UNIARA, Department of Dentistry, Area of Orthodontics, Araraquara, SP.
Published
2015-10-01
How to Cite
Feitoza, C. C., Oliveira, G. J. P. L. de, Consani, R. L. X., Boeck, E. M., Pizzol, K. E. D. C., & Lunardi, N. (2015). Chemical analysis and Vickers hardness of orthodontic mini-implants. Brazilian Journal of Oral Sciences, 14(1), 1-4. https://doi.org/10.20396/bjos.v14i1.8640836
Section
Article