Color Stability of Monolithic Zirconia in Various Staining Liquids: An In Vitro Study
This study aimed to compare the color stability of monolithic zirconia (MLZ) after immersion in various staining liquids. Fifty MLZ samples (<i>n</i> = 50) were color infiltrated by brushing/painting the samples pre-sintering. All zirconia samples were then brushed inside a toothbrushing...
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| Format: | Article |
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MDPI AG
2022-09-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/19/9752 |
| _version_ | 1797480663392190464 |
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| author | Talal M. Alnassar |
| author_facet | Talal M. Alnassar |
| author_sort | Talal M. Alnassar |
| collection | DOAJ |
| description | This study aimed to compare the color stability of monolithic zirconia (MLZ) after immersion in various staining liquids. Fifty MLZ samples (<i>n</i> = 50) were color infiltrated by brushing/painting the samples pre-sintering. All zirconia samples were then brushed inside a toothbrushing simulator machine to create abrasion. Ten samples each were immersed in artificial saliva (gp-1), coffee (gp-2), protein shake (gp-3), chlorhexidine mouthwash (gp-4), and a soft drink (gp-5). Besides chlorhexidine mouthwash (immersion time: 14 days), the samples were immersed in the liquids for 28 days. A spectrophotometer was utilized to observe the color differences (∆E) at the baseline vs. 28 days post-immersion. The means and standard deviations were compared using analysis of variance (ANOVA) and a multiple comparisons test. A <i>p</i>-value < 0.05 was considered significant. The greatest ∆E (4.57) was observed after immersion in the coffee, followed by a soft drink (∆E: 4.03). Chlorhexidine mouthwash immersion of MLZ samples also significantly changed their color stability (∆E: 3.60). The inter-group comparisons revealed statistically significant differences (<i>p</i> < 0.05) when ∆E values of gp-1 (artificial saliva) were compared with all other groups. Significant differences (<i>p</i> < 0.05) were also seen when ∆E values of gp-2 (coffee) were compared with gp-3 (protein shake) and gp-4 (chlorhexidine). All other inter-group comparisons revealed non-significant results (<i>p</i> > 0.05). The results of the present study demonstrate that coffee immersion of MLZ samples causes more significant discoloration (increased ∆E values) than other liquids. Further in vitro and clinical studies are warranted to corroborate the present study’s findings. |
| first_indexed | 2024-03-09T22:03:18Z |
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| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T22:03:18Z |
| publishDate | 2022-09-01 |
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| series | Applied Sciences |
| spelling | doaj.art-2f3a16dd6bbe49c0acb05fedf09b678a2023-11-23T19:45:06ZengMDPI AGApplied Sciences2076-34172022-09-011219975210.3390/app12199752Color Stability of Monolithic Zirconia in Various Staining Liquids: An In Vitro StudyTalal M. Alnassar0Department of Prosthetic Dental Science, College of Dentistry, King Saud University, Riyadh 11545, Saudi ArabiaThis study aimed to compare the color stability of monolithic zirconia (MLZ) after immersion in various staining liquids. Fifty MLZ samples (<i>n</i> = 50) were color infiltrated by brushing/painting the samples pre-sintering. All zirconia samples were then brushed inside a toothbrushing simulator machine to create abrasion. Ten samples each were immersed in artificial saliva (gp-1), coffee (gp-2), protein shake (gp-3), chlorhexidine mouthwash (gp-4), and a soft drink (gp-5). Besides chlorhexidine mouthwash (immersion time: 14 days), the samples were immersed in the liquids for 28 days. A spectrophotometer was utilized to observe the color differences (∆E) at the baseline vs. 28 days post-immersion. The means and standard deviations were compared using analysis of variance (ANOVA) and a multiple comparisons test. A <i>p</i>-value < 0.05 was considered significant. The greatest ∆E (4.57) was observed after immersion in the coffee, followed by a soft drink (∆E: 4.03). Chlorhexidine mouthwash immersion of MLZ samples also significantly changed their color stability (∆E: 3.60). The inter-group comparisons revealed statistically significant differences (<i>p</i> < 0.05) when ∆E values of gp-1 (artificial saliva) were compared with all other groups. Significant differences (<i>p</i> < 0.05) were also seen when ∆E values of gp-2 (coffee) were compared with gp-3 (protein shake) and gp-4 (chlorhexidine). All other inter-group comparisons revealed non-significant results (<i>p</i> > 0.05). The results of the present study demonstrate that coffee immersion of MLZ samples causes more significant discoloration (increased ∆E values) than other liquids. Further in vitro and clinical studies are warranted to corroborate the present study’s findings.https://www.mdpi.com/2076-3417/12/19/9752dentistryprosthodonticsmonolithic zirconiacolorstaining liquidsspectrophotometer |
| spellingShingle | Talal M. Alnassar Color Stability of Monolithic Zirconia in Various Staining Liquids: An In Vitro Study Applied Sciences dentistry prosthodontics monolithic zirconia color staining liquids spectrophotometer |
| title | Color Stability of Monolithic Zirconia in Various Staining Liquids: An In Vitro Study |
| title_full | Color Stability of Monolithic Zirconia in Various Staining Liquids: An In Vitro Study |
| title_fullStr | Color Stability of Monolithic Zirconia in Various Staining Liquids: An In Vitro Study |
| title_full_unstemmed | Color Stability of Monolithic Zirconia in Various Staining Liquids: An In Vitro Study |
| title_short | Color Stability of Monolithic Zirconia in Various Staining Liquids: An In Vitro Study |
| title_sort | color stability of monolithic zirconia in various staining liquids an in vitro study |
| topic | dentistry prosthodontics monolithic zirconia color staining liquids spectrophotometer |
| url | https://www.mdpi.com/2076-3417/12/19/9752 |
| work_keys_str_mv | AT talalmalnassar colorstabilityofmonolithiczirconiainvariousstainingliquidsaninvitrostudy |