Enamel colour changes following whitening with 10 per cent carbamide peroxide: a comparison of orthodontically-bonded/debonded and untreated teeth

Hintz, John; Bradley, TG; Eliades, Theodore

doi:10.1093/ejo/23.4.411

Cited by 30 publications

(32 citation statements)

References 8 publications

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“…Generally, DE * ab values less than 1 unit are considered a color match since they cannot be identified by human observers. 35 Differences exceeding 2 DE * ab units may indicate color change, 26 but some studies set the proposed perceptible limit for color matching to 3.7 DE * ab units. 36 In the present study, enamel color changes in all groups were higher than the perceptible limit of color difference (DE * ab .…”

Section: Discussionmentioning

confidence: 99%

Influence of orthodontic adhesives and clean-up procedures on the stain susceptibility of enamel after debonding

Joo

Lee²,

Lee³

et al. 2011

The Angle Orthodontist

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Objective: To determine the influence of the type of orthodontic adhesive system, such as conventional acid-etching (CE) and self-etching primers (SEPs), on the stain susceptibility of enamel surface after debonding. Effects of clean-up procedures on the enamel surface were also determined. Materials and Methods: Two types and four brands of adhesive systems were investigated using 135 human premolars. Unbonded teeth were used as controls. Three-dimensional scanning of the enamel surface was performed before bracket bonding, after debonding, and after clean-up procedures. The color of each tooth was measured before bracket bonding and again after debonding and clean-up procedures. This was followed by methylene blue staining. The stain susceptibility of the enamel surface was measured after finishing only (F-condition) and after finishing/polishing (FP-condition). Results: After debonding, the amount of residual adhesive resins in CE materials was greater than that in SEP materials. For the F-condition, staining color change in SEP materials was significantly higher than that in CE materials. For the FP-condition, staining color change in both CE and SEP materials was not different from those of the control. Conclusions: The SEP system would show less stain susceptibility if the thin residual adhesive resin layer after debonding is removed by polishing. (Angle Orthod. 2011;81:334-340.)

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Section: Discussionmentioning

confidence: 99%

Influence of orthodontic adhesives and clean-up procedures on the stain susceptibility of enamel after debonding

Joo

Lee²,

Lee³

et al. 2011

The Angle Orthodontist

View full text Add to dashboard Cite

show abstract

“…There is only one study in the literature [8] that refers to the influence of bonding material on post-orthodontic bleaching. However, those authors studied bonded and untreated areas on different teeth, and defined color only by measurements taken with a colorimeter.…”

Section: Discussionmentioning

confidence: 99%

“…In der Literatur findet sich nur eine einzige Studie [8], die den Einfluss des Bracketklebers auf ein postorthodontisches Bleichen untersucht hat. Allerdings wurden dort die unterschiedlichen Areale "geklebt/nicht geklebt" auf verschiedenen Zähnen erzeugt, die Farbmessungen erfolgten allein mit dem Kolorimeter.…”

Section: Discussionunclassified

“…Die in der Studie von Hintz et al [8] sofort nach dem Bleichvorgang gefundenen Farbunterschiede sind nach 2 Wochen nicht mehr messbar, wie auch die Farbunterschiede sofort nach Entfernung des Bracketklebers nach einiger Zeit nicht mehr zu erkennen sind [6]. In der vorliegenden Untersuchung sollten diese Zeiten der Angleichung durch die Farbmessung zu verschiedenen Zeitpunkten simuliert werden; allerdings waren die Unterschiede der Farbmessungen so minimal, dass sie eher dem Messfehler zuzuordnen waren und nicht weiter beachtet werden konnten.…”

Section: Discussionunclassified

“…The differences in color that Hintz et al [8] demonstrated immediately after the bleaching procedure were not feasible in our study, since we took our measurements 2 weeks later -nor did we note any color differences after debonding, since they are no longer visible after such a period either [6]. We aimed to simulate these times of adjustment by measuring at different times, but the measured values' differences were so minimal that we categorized them as measuring errors and did not give them further consideration.…”

Section: Diskussionmentioning

confidence: 96%

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