Abstract
Objective
In this randomized study, the caries-protective effect on vestibular enamel of two fluoride-containing sealants (Protecto® and Light Bond®) during multibracket treatment was investigated.
Materials and methods
In all, 40 orthodontic patients about to receive a multibracket appliance with the brackets bonded to the vestibular tooth surfaces were randomly included in this study. Each one was randomly assigned to one of four groups. A crossover design was selected in which a sealed quadrant was contralateral to an unsealed quadrant, then choosing the reverse configuration in the opposite jaw. Two sealants were, thus, tested on vestibular enamel on left and right anterior teeth and premolars in both jaws of each patient over 6 months of multibracket treatment. A DIAGNOdent® pen measuring laser fluorescence was used to analyze the relevant enamel surfaces both at baseline and after 6 months.
Results
Neither the incidence nor the characteristics of the demineralization we observed during the study differed between the 4 groups.
Conclusion
Single application of smooth-surface sealants did not protect enamel around brackets from incipient carious lesions during the first 6 months of multibracket treatment.
Zusammenfassung
Ziel
Zwei fluoridhaltige Bracketumfeldversiegelungslacke sollten in einer randomisierten Studie auf kariesprotektive Wirkung im klinischen Einsatz untersucht werden.
Material und Methode
Für diese Studie wurden per Zufall 40 kieferorthopädische Patienten ausgewählt, die kurz vor dem Einsetzen einer vestibulär befestigten Multibracket-Apparatur standen. Ebenfalls zufällig wurden diese Patienten in vier Gruppen eingeteilt, wobei nach dem Crossover-Prinzip gegenläufig zum Gegenkiefer immer eine unversiegelte Kieferhälfte einer versiegelten gegenüber lag. Je Proband wurden zwei Versiegelungslacke jeweils einmal auf der linken und einmal auf der rechten Kieferseite an Frontzähnen und Prämolaren über einen Zeitraum von 6 Monaten getestet. Zu Beginn und zum Abschluss der Untersuchung wurden die Schmelzoberflächen der betreffenden Zähne durch Laserfluoreszenzmessung mit dem DIAGNOdent®-Pen auf Demineralisationen untersucht.
Ergebnisse
In allen Gruppen traten innerhalb des Untersuchungszeitraumes Demineralisationen in gleicher Häufigkeit auf. Auch die Qualität der entstandenen Läsionen war in allen Gruppen gleich.
Schlussfolgerung
Nach einmaliger Anwendung der untersuchten Glattflächen-Versiegelungslacke konnte über eine Multibracketbehandlungszeit von 6 Monaten keine protektive Wirkung gegenüber initialkariösen Läsionen nachgewiesen werden.
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On behalf of all authors, the corresponding author states that there are no conflicts of interest.
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Die korrespondierende Autorin gibt für sich und ihre Koautoren an, dass keine Interessenkonflikte bestehen.
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Bechtold, T., Sobiegalla, A., Markovic, M. et al. In vivo effectiveness of enamel sealants around orthodontic brackets. J Orofac Orthop 74, 447–457 (2013). https://doi.org/10.1007/s00056-013-0178-4
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DOI: https://doi.org/10.1007/s00056-013-0178-4
Keywords
- Smooth-surface enamel sealant
- Vestibular multibracket appliance
- Demineralization
- White-spot lesion
- Laser fluorescence measurement