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. 2021 Feb 24;7(1):11.
doi: 10.1038/s41405-020-00055-0.

The colour stability of crystallized acetyl resin material in comparison to other restorative materials. An in-vitro study

Sarah Aburaisi  1 , Abdulkarim Basha  2 , Khalid Al Najjar  3 , Husam Al Saqat  3 , Faisal Al Askar  3 , Fareed Al Nazer  3
Affiliations

The colour stability of crystallized acetyl resin material in comparison to other restorative materials. An in-vitro study

Sarah Aburaisi et al. BDJ Open. .

Abstract

Aim: To investigate the colour stability of Crystalized Acetyl Resin, in comparison to three other aesthetic restorative materials, when immersed in different staining aqueous solutions.

Materials and methods: Fifteen disc-shaped specimens each, of the four materials tested, were immersed in either DW or 4 staining solutions. CIE L*a*b* values were recorded using a digital spectrophotometer on a weekly basis for 4 weeks. Data were compared using three- way/two-way ANOVA along with auto-regressive model.

Results: Two-way Anova indicates that there is a significant colour change in all materials over time when immersed in the different staining solutions. Auto-regressive model showed that the colour change in each successive week was statistically significant (P < 0.001).

Conclusion: The most staining solution affecting the materials during this study was black coffee. Within the limitation of this study, Acetyl Resin was the most colour stable material among the other materials.

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Conflict of interest statement

The authors declare no competing interests.

Figures

Fig. 1
Fig. 1. The shade.
A Recording with spectrophotometer display against white background and L* a* b* readings. B Iwanson spring. C Orbital shaker.
Fig. 2
Fig. 2. Materials used.
A Tested materials. B Addition silicone.
Fig. 3
Fig. 3. Composite Speciments ready for measurements.
A Composite resin (after 2 weeks). B Compositeresin (after 4 weeks).
Fig. 4
Fig. 4. GIC Speciments ready for measurements.
A GIC (after 2 weeks). B GIC (after 4 weeks).
Fig. 5
Fig. 5. Bis-acryl Speciments ready for measurements.
A Bis-acryl (after 2 weeks). B Bis-acryl (after 4 weeks).
Fig. 6
Fig. 6. POM Speciments ready for measurements.
A POM (after 2 weeks). B POM (after 4 weeks).
Fig. 7
Fig. 7
Colour change over time of test materials in distilled water.
Fig. 8
Fig. 8
Colour change over time of test materials in black coffee.
Fig. 9
Fig. 9
Colour change over time of test materials in black tea.
Fig. 10
Fig. 10
Colour change over time of test materials in soda.
Fig. 11
Fig. 11
Colour change over time of test materials in energy drink.
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