The aim of the present study was to evaluate the in vitro caries preventive effect of fluoridated orthodontic resins under pH cycling with two types of acid demineralizing saliva.
Materials and methods
Brackets were bonded to 120 extracted human premolars, using Rely-a-bond (n = 40), Tru- Bond (n = 40) and Ortho-one (n = 40) orthodontic bonding agents. Each group of resin was divided into 2 subgroups (n = 20): immersion in remineralizing artificial saliva for 14 days and acid saliva with pH 4.3. After 14 days of pH cycling the caries preventive effect on the development of white spot lesion was evaluated considering the presence of inhibition zones to white spot lesions using two scores: 0 = absence and 1 = presence. Kruskal-Wallis ANOVA and Mann-Whitney U tests were used.
Results
Formation of white spot lesions was observed only under pH cycling using acid saliva with pH 4.3; with Rely-a-bond and Tru-Bond being significantly more effective in preventing the appearance of white spot lesions effect than Ortho-one.
Conclusion
The acidity of the demineralizing solution influenced the formation of white spot lesions around orthodontic brackets under highly cariogenic conditions. Rely-a-bond and Tru-bond presented higher caries-preventive effect than Orthoone.
Clinical significance
The development of fluoride-containing materials cannot be regarded as a permanent means to control dental caries lesions, but a complement along with other preventive methods.
How to cite this article
Patil N, Jawale B, Redasani R, Chaudhari L, Garde JB, Chauhan VS. In vitro Caries-Preventive Effect of Fluoridated Orthodontic Resins against Cariogenic Challenge Stimulation. J Contemp Dent Pract 2012;13(4):452-455.
The expected effect on oral health of dental plaque control through mechanical removal. Periodontology 2000, 1995;8:60-74.
The effectiveness of a counter rotational-action power toothbrush on plaque control in orthodontic patients. Am J Orthod Dentofac Orthop 1991;99:7-14.
In vivo inhibition of demineralization around orthodontic brackets. Am J Orthod Dentofacial Orthop 2003;123:10-14.
Preventing decalcification after orthodontic treatment. J Am Dent Assoc 1987;115:257-61.
Evaluation of demineralization adjacent to orthodontic bracket and bond strength using fluoride-releasing and conventional bonding agents. Indian J Dent Res 2011;22(1):44-49.
Enhancement of remineralization in vitro and in vivo. In: Leach, SA (Ed). Factors relating to demineralization and remineralization of the teeth. Oxford: IRL Press 1986:23-34.
Prevalence of white spot lesions during orthodontic treatment with fixed appliances. Angle Orthod 2011;81(2):206-10.
Prevalence of white spot lesions in 19-year-olds: A study on untreated and orthodontically treated persons 5 years after treatment. Am J Orthod Dentofacial Orthop 1989;96(5):423-27.
Fluorides, orthodontics and demineralization: A systematic review. J Orthod 2005;32(2):102-14.
Orthodontic appliances and enamel demineralization. Part 2. Prevention and treatment of lesions. Am J Orthod Dentofacial Orthop 1988;94(2):123-28.
Fluoride release from some dental materials in different solutions. Oper Dent 1999;24(1):14-19.
In vitro studies on the effects of fluoride on demineralization and remineralization J Dent Res 1990;69(Sp Issue):614-19.
Prevention of demineralization around orthodontic brackets in vitro. Am J Orthod Dentofacial Orthop 2007;131:705 e701-09.
Long-term fluoride release of visible light-activated composites in vitro: A correlation with in situ demineralisation data. Caries Res 1993;27:117-123.
Long-term in vitro fluoride release and rerelease from orthodontic bonding materials containing fluoride. Am J Orthod Dentofacial Orthop 2003 Nov;124(5):571-76.
Preventive effect of fluoridated orthodontic resins subjected to high cariogenic challenges braz. Dent J 2010;21(3):211-15.
