Salivary and Urinary Fluoride Levels after 1-Month Use of Fluoride-Releasing Removable Appliances

Abstract

Forty children aged 8–10 years participated in this study. Half (n = 20) of them used orthodontic appliances which contained fluoride-releasing devices embedded in the lingual surface of the appliance and the other half used orthodontic appliances prepared from a fluoride-releasing acrylic polymer. Prior to the adjustment of appliances and after 1, 7, 14, 21 and 30 days salivary and urinary samples were collected and the fluoride concentrations were determined. The mean fluoride release was highest during the first week. However, the values decreased considerably after that and the curves for the two groups became parallel. The results indicate that fluoride-releasing removable appliances could be useful for a prolonged release of low concentrations of fluoride without any systemic effect.

Evaluation of a New Intraoral Controlled Fluoride Release Device

“…This 'burst' effect has also been observed by other investigators in subjects without any systemic problems [Hörsted-Bindslev and Larsen, 1990;Cooley and McCourt, 1991;Alaçam et al,1996]. Also, the statistically significant difference (p !…”

“…Cain et al [1994] employed 0.232 and 0.07 mg/day release rates and Alaçam et al [1996] employed a 0.32 mg F/day release rate in their in vivo controlled-release studies and observed an increase in salivary fluoride levels. In the present study, the selected release rate of 0.15 mg F/day was thought to be appropriate for a clinical investigation and the results showed a statistically significant increase in salivary fluoride concentrations, confirming the above studies; a salivary fluoride concentration of 150 times the normal concentration was maintained for 1 month.…”

“…By this way, an effective concentration can be provided at the site of action. Clinical studies indicate that slowrelease fluoride systems are promising cariostatic agents [Mirth et al, 1981[Mirth et al, , 1982Toumba and Curzon, 1993;Alaçam et al,1996;Billings et al, 1998;ten Cate and van Loveren, 1999].…”

A Comparison of the Periodontal Health of Patients during Treatment with the Invisalign® System and with Fixed Orthodontic Appliances

“…In contrast, the oral hygiene problem has been much less intensively examined in patients with removable appliances [2,11,12,14,16,31,36,38,44,48]. Obviously, these patients have been regarded as representative of the average population, since their oral hygiene routines are in no way impeded.…”

“…Bei Patienten mit herausnehmbaren Geräten wurden Mundhygieneprobleme bisher relativ selten in Betracht gezogen [2,11,12,14,16,31,36,38,44,48] was performed by one of the authors (S.V. ), who had 5 years of clinical experience in periodontics and as an assistant professor in a university clinic.…”