Your browser doesn't support javascript.
loading
Evaluation of antibacterial properties and shear bond strength of orthodontic composites containing silver nanoparticles, titanium dioxide nanoparticles and fluoride: An in vitro study.
Mahendra, Tivanani Venkata Durga; Muddada, Vizia; Gorantla, Suresh; Karri, Tarakesh; Mulakala, Vyshnavi; Prasad, Ratnavati; Chintala, Sarath Kumar; Mounica, Kotta.
Afiliação
  • Mahendra TVD; Vishnu Dental College, Department of Orthodontics and Dentofacial Orthopedics, (Bhimavaram, Andhra Pradesh, India). dr.durgamahendra@gmail.com.
  • Muddada V; Sree Sai Dental College and Research Institute, Department of Orthodontics and Dentofacial Orthopedics (Srikakulam, Andhra Pradesh, India).
  • Gorantla S; Sree Sai Dental College and Research Institute, Department of Orthodontics and Dentofacial Orthopedics (Srikakulam, Andhra Pradesh, India).
  • Karri T; Anil Neerukonda Institute of Dental Sciences, Department of Orthodontics and Dentofacial Orthopedics (Bheemunipatnam, Andhra Pradesh, India).
  • Mulakala V; Private practice (Visakhapatnam, Andhra Pradesh, India).
  • Prasad R; Sree Sai Dental College and Research Institute, Department of Orthodontics and Dentofacial Orthopedics (Srikakulam, Andhra Pradesh, India).
  • Chintala SK; Sree Sai Dental College and Research Institute, Department of Orthodontics and Dentofacial Orthopedics (Srikakulam, Andhra Pradesh, India).
  • Mounica K; Sree Sai Dental College and Research Institute, Department of Orthodontics and Dentofacial Orthopedics (Srikakulam, Andhra Pradesh, India).
Dental Press J Orthod ; 27(5): e222067, 2022.
Article em En | MEDLINE | ID: mdl-36350944
OBJECTIVE: The study aimed at determining the antibacterial properties of composites containing silver nanoparticles (Ag NPs) or titanium dioxide nanoparticles (TiO2 NPs), and a fluoride-releasing composite against Streptococcus mutans and Lactobacillus acidophilus, and to evaluate the effect on shear bond strength (SBS) of nanoparticles-modified composites. MATERIALS AND METHODS: An orthodontic composite was modified by adding 1% w/w Ag NPs or 1% w/w TiO2 NPs. Composite discs were prepared to evaluate the antibacterial properties of these modified composites against Streptococcus mutans and Lactobacillus acidophilus, using three different antibacterial tests, namely: Disk agar diffusion test, Biofilm inhibition test and eluted component test. For evaluating the shear bond strength, 80 extracted premolars were collected and divided into four groups (n=20 each), which were bonded with stainless steel preadjusted Edgewise brackets, by using these modified composites. Their SBS was then compared with that of the control group, using a universal testing machine. RESULTS: Composite discs containing nanoparticles and fluoride were capable of producing growth inhibition zones for all bacterial types. Results of the biofilm inhibition test showed that all the study groups inhibited the bacterial count, in comparison to the control group. A significant difference of SBS was observed between all groups. CONCLUSION: The antibacterial activity of orthodontic composites modified with Ag and TiO2 nanoparticles was significant, compared with conventional and fluoride-containing composites. The control group showed the highest SBS, followed by fluoride, titanium, and silver groups, with statistically significant difference in mean SBS values among all groups.
Assuntos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Braquetes Ortodônticos / Nanopartículas Metálicas Idioma: En Revista: Dental Press J Orthod Ano de publicação: 2022 Tipo de documento: Article País de publicação: Brasil
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Braquetes Ortodônticos / Nanopartículas Metálicas Idioma: En Revista: Dental Press J Orthod Ano de publicação: 2022 Tipo de documento: Article País de publicação: Brasil