• Users Online: 493
  • Home
  • Print this page
  • Email this page
Home About us Editorial board Ahead of print Current issue Search Archives Submit article Instructions Subscribe Contacts Login 
RESEARCH ARTICLE
Year : 2013  |  Volume : 47  |  Issue : 7  |  Page : 357-361

Effects of Fluoride on NiTi Orthodontic Archwires: An X-ray Diffraction Study


1 Senior Resident, Department of Orthodontics, Oral Health Sciences Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
2 Professor, Department of Orthodontics, DAV (C) Dental College and Hospital, Yamunanagar, Haryana, India
3 Professor and Head, Department of Orthodontics, DAV (C) Dental College and Hospital, Yamunanagar, Haryana, India

Correspondence Address:
Sumit Kumar Yadav
Senior Resident, Department of Orthodontics, Oral Health Sciences Centre, Postgraduate Institute of Medical Education and Research, Sector-12, Chandigarh-160012
India
Login to access the Email id

Source of Support: None, Conflict of Interest: None


Rights and PermissionsRights and Permissions

Objective: To explore the changes in nickel-titanium (NiTi) archwires after exposure to fluoride-containing acetic acid solutions. Materials and methods: Preformed rectangular NiTi wires were immersed in either an acidulated fluoride solution, a neutral fluoride solution or distilled water (control) for 1.5 hours at 37°C. After immersion, the unloading force values at four deflection points were measured by three-point bending test. Scanning electron microscopy and X-ray diffraction analysis were also performed to characterize the effects of the fluoride exposure on the wire. Results: Unloading force values of NiTi orthodontic wires were significantly decreased after exposure to both fluoride solutions (p < 0.001). Corrosive changes in surface topography were observed for both fluoride solutions. Wires exposed to acidic fluoride appeared as more severely affected. X-ray diffraction analysis showed no change in crystal lattice of NiTi wires in both solutions. Conclusion: The results suggest that using topical fluoride agents with NiTi wire could decrease the functional unloading mechanical properties of the wire and contribute to prolonged orthodontic treatment.


[PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed276    
    Printed0    
    Emailed0    
    PDF Downloaded67    
    Comments [Add]    

Recommend this journal