<abstract xmlns="http://www.w3.org/1999/xhtml">

<italic>Background:</italic> The colour stability of aesthetic brackets may differ according to their composition, morphology and surface property, which may consequently influence their aesthetic performance.
<italic>Aims:</italic> To assess the colour stability of aesthetic brackets (ceramic and plastic) after simulating aging and staining.
<italic>Methods:</italic> Twelve commercially manufactured ceramic brackets and four different plastic brackets were assessed. To determine possible colour change (ΔE*ab) and the value of the NBS (National Bureau of Standards) unit system, spectrophotometric colour measurements for CIE L*, a* and b* were taken before and after the brackets were aged and stained. Statistical analysis was undertaken using a one-way ANOVA analysis of variance and a Tukey multiple comparison test (α = 0.05).
<italic>Results:</italic> The colour change between the various (ceramic and plastic) materials was not significant (<italic>p</italic> > 0.05), but still varied significantly (<italic>p</italic> &lt; 0.001) between the brackets of the same composition or crystalline structure and among commercial brands.
<italic>Conclusion:</italic> Colour stability cannot be confirmed simply by knowing the type of material and crystalline composition or structure. (Aust Orthod J 2013; 29: 13-20)
</abstract>

Background: The colour stability of aesthetic brackets may differ according to their composition, morphology and surface property, which may consequently influence their aesthetic performance.
Aims: To assess the colour stability of aesthetic brackets (ceramic and plastic) after simulating aging and staining.
Methods: Twelve commercially manufactured ceramic brackets and four different plastic brackets were assessed. To determine possible colour change (ΔE*ab) and the value of the NBS (National Bureau of Standards) unit system, spectrophotometric colour measurements for CIE L*, a* and b* were taken before and after the brackets were aged and stained. Statistical analysis was undertaken using a one-way ANOVA analysis of variance and a Tukey multiple comparison test (α = 0.05).
Results: The colour change between the various (ceramic and plastic) materials was not significant (p > 0.05), but still varied significantly (p < 0.001) between the brackets of the same composition or crystalline structure and among commercial brands.
Conclusion: Colour stability cannot be confirmed simply by knowing the type of material and crystalline composition or structure. (Aust Orthod J 2013; 29: 13-20)

Colour stability of aesthetic brackets: ceramic and plastic

Federal University of Rio de Janeiro (UFRJ) Dental School

Australasian Orthodontic Journal

This work is licensed under the Creative Commons Attribution 4.0 International License.

{"article-title":"Colour stability of aesthetic brackets: ceramic and plastic"}

Background: The colour stability of aesthetic brackets may differ according to their composition, morphology and surface property, which may consequently...

Colour stability of aesthetic brackets: ceramic and plastic

Pubblicato online: 01 ago 2023

Pagine: 13 - 20

Ricevuto: 01 set 2011

Accettato: 01 mar 2013

DOI: https://doi.org/10.2478/aoj-2013-0003

© 2013 Hibernon Lopes Filho et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.