In vitro evaluation of a fluoride-releasing orthodontic resin.
Decalcification around brackets is sometimes observed following orthodontic treatment. Fluoride-releasing orthodontic adhesives have been developed and used for reduction of the frequency and severity of decalcification. This study evaluated a light-activated, fluoride-releasing resin composite adhesive, FluorEver OBA. Our findings indicate that FluorEver OBA released small concentrations of fluoride ions over time. However, the adhesive had significantly lower tensile bond strengths than a conventional composite cement. Microhardness testing indicated that the resin underneath metal orthodontic brackets was not thoroughly polymerized, which may have contributed to cohesive failures of the resin composite. Despite its lower tensile bond strength, FluorEver OBA may be indicated for cases where decalcification is expected.
Chan
D C
DC
Department of Restorative Dentistry, University of Texas Health Science Center, San Antonio 78284.
Swift
E J
EJ
Bishara
S E
SE
D000704:Analysis of Variance; D003188:Composite Resins; D003692:Delayed-Action Preparations; D003731:Dental Caries / Q000517:prevention & control; D003738:Dental Cements; D005460:Fluorides, Topical / Q000008:administration & dosage*; D006244:Hardness; D006801:Humans; D008422:Materials Testing; D008963:Molar; D009967:Orthodontic Appliances / Q000009:adverse effects; D013718:Tensile Strength
D003188:Composite Resins; D003692:Delayed-Action Preparations; D003738:Dental Cements; D005460:Fluorides, Topical; C070190:FluorEver OBA