Remember Me
Or use your Academic/Social account:


Or use your Academic/Social account:


You have just completed your registration at OpenAire.

Before you can login to the site, you will need to activate your account. An e-mail will be sent to you with the proper instructions.


Please note that this site is currently undergoing Beta testing.
Any new content you create is not guaranteed to be present to the final version of the site upon release.

Thank you for your patience,
OpenAire Dev Team.

Close This Message


Verify Password:
Verify E-mail:
*All Fields Are Required.
Please Verify You Are Human:
fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Tinsley, D.; O'Dwyer, J.J.; Benson, P.E. (2003)
Languages: English
Types: Article
OBJECTIVES: To compare (i) the in vivo release of fluoride from fluoridated elastomers to the in vitro\ud release, and (ii) the residual fluoride content of the elastomers after 1 week in the mouth with and\ud without fluoride toothpaste and mouthrinse.\ud DESIGN: A prospective, longitudinal, cross-over study.\ud Subjects and method: Six subjects were recruited by poster to take part in the study. Each subject\ud had one premolar in each quadrant to which a bracket could be fixed and exemplary oral hygiene.\ud Elastomers were then placed on these brackets.\ud Intervention: The study was divided into two parts: (i) subjects used oral hygiene products with\ud fluoride and (ii) oral hygiene products with fluoride were excluded. Both groups of elastomers\ud were left in the mouth for 1 week. After collection the elastomers were stored in distilled water.\ud MAIN OUTCOME MEASURES: The amount of residual fluoride in the ligatures after they have been\ud placed in the mouth for 1 week was compared with the cumulative fluoride release in vitro over 1\ud week and 6 months.\ud RESULTS: Only 13 per cent of the total amount of fluoride in fluoridated elastomers was released\ud during the first week in vitro, compared with 90 per cent in vivo. There was a significantly greater\ud amount (P = 0.001) of residual fluoride when the elastomers were in the mouth for 1 week in the\ud presence of fluoride toothpaste and mouthrinse, than when fluoride supplements were excluded.\ud CONCLUSIONS: (1) Higher levels of fluoride are lost from the fluoride elastomers in vivo than in vitro\ud during the first week. (2) A significantly greater amount of residual fluoride was released from the\ud elastomers placed in the mouth when fluoride toothpaste and mouthrinse were used.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • 1. O'Reilly MM, Featherstone JD. Demineralization and remineralization around orthodontic appliances: an in vivo study. Am J Orthod Dentofac Orthop 1987; 92: 33-40.
    • 2. Geiger AM, Gorelick L, Gwinnett AJ, Benson BJ. Reducing white spot lesions in orthodontic populations with fluoride rinsing. Am J Orthod Dentofac Orthop 1992; 101: 403-7.
    • 3. Banks PA, Chadwick SM, Asher-McDade C, Wright JL. Fluoride-releasing elastomerics-a prospective controlled clinical trial. Eur J Orthod 2000; 22: 401-7.
    • 4. Mattick CR, Mitchell L, Chadwick SM, Wright J. Fluoridereleasing elastomeric modules reduce decalcification: a randomized controlled trial. J Orthod 2001; 28: 217-19.
    • 5. Wiltshire WA. Determination of fluoride from fluoridereleasing elastomeric ligature ties. Am J Orthod Dentofac Orthop 1996; 110: 383-7.
    • 6. Wiltshire WA. In vitro and in vivo fluoride release from orthodontic elastomeric ligature ties. Am J Orthod Dentofac Orthop 1999; 115: 288-292.
    • 7. Preston AJ, Higham SM, Agalamanyi EA, Mair LH. Fluoride recharge of aesthetic dental materials. J Oral Rehabil 1999; 26: 936-40.
    • 8. Levy SM, Guha-Chowdhury N. Total fluoride intake and implications for dietary fluoride supplementation. J Publ Hlth Dent, 1999; 59: 211-23.
    • 9. Miethke RR, Comment on determination of fluoride from ligature ties, Am J Orthod Dentofac Orthop 1997; III 33A.
    • 10. Dowling PA, Jones WB, Lagerstrom L, Sandham JA. An investigation into the behavioural characteristics of orthodontic elastomeric modules. Br J Orthod 1998; 25: 197-202.
    • 11. Margolis HC, Moreno EC, Murphy BJ. Effect of low levels of fluoride in solution on enamel demineralization in vitro. J Dent Res 1986; 65: 23-9.
  • No related research data.
  • No similar publications.

Share - Bookmark

Cite this article