Article ; Online: Influence of Chairside Simulated Adjustment (Finishing and Polishing) Protocol and Chlorhexidine Mouthwash Immersion on Color Stability and Translucency of 2 and 3 Preshaded Multilayered Monolithic Zirconia.
Medical science monitor : international medical journal of experimental and clinical research
2024 Volume 30, Page(s) e943404
Abstract: BACKGROUND Preshaded monolithic zirconia (MLZ) is reported to have high translucency. This study aimed to assess the effect of chlorhexidine gluconate (ChG) mouthwash on color and translucency parameter (TP) of 2 different preshaded MLZ dental ceramics ... ...
| Abstract | BACKGROUND Preshaded monolithic zirconia (MLZ) is reported to have high translucency. This study aimed to assess the effect of chlorhexidine gluconate (ChG) mouthwash on color and translucency parameter (TP) of 2 different preshaded MLZ dental ceramics after clinical adjustment. MATERIAL AND METHODS Two MLZ disk-shaped specimens [NPM (Nacera Pearl Multi-Shade) (n=72) and CZM (Ceramill Zolid FX Multilayer)] (n=72) were simulated for clinical adjustment, finished, and polished using 2 adjustment kits [recommended kit, third-party kit: Diasynt Plus and SUN (n=12 each)] and later immersed in ChG mouthwash (Avohex) for 2 weeks. Difference in color (ΔE) and TP (Y) were calculated using the CIELab formula after measuring the coordinates (Lab) with a colorimeter. Individual changes in color and TP were assessed on the Clinical acceptance (perceptible) threshold (CAT/CPT) and Translucency perception threshold (TPT), respectively. Differences between the 2 ceramics were assessed using one-way ANOVA and post hoc tests, with all differences considered significant at P<0.05. RESULTS NPM and CZM differed in color at baseline despite having the same Vita shade combination. Between the 2 preshaded MLZ ceramics, NPM showed significant changes in color when adjusted with a third-party kit. Chlorhexidine produced changes in color and TP that were designated as clinically perceptible (ΔE=1.0 to 3.3) on the CAT/CPT and TPT scales, irrespective of the adjustment kit used. ChG produced the least or no changes in glazed MLZ specimens. CONCLUSIONS ChG mouthwash, whenever prescribed for preshaded MLZ restoration, should be adjusted prior to final glazing to avoid clinical adjustments that adversely affects color and translucency of the restoration. |
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| MeSH term(s) | Color ; Chlorhexidine/pharmacology ; Mouthwashes/pharmacology ; Immersion ; Materials Testing ; Surface Properties ; Ceramics ; Dental Porcelain ; Zirconium | |||||
| Chemical Substances | zirconium oxide (S38N85C5G0) ; Chlorhexidine (R4KO0DY52L) ; Mouthwashes ; Dental Porcelain (12001-21-7) ; Zirconium (C6V6S92N3C) | |||||
| Language | English | |||||
| Publishing date | 2024-02-20 | |||||
| Publishing country | United States | |||||
| Document type | Journal Article | |||||
| ZDB-ID | 1439041-3 | |||||
| ISSN | 1643-3750 ; 1234-1010 | |||||
| ISSN (online) | 1643-3750 | |||||
| ISSN | 1234-1010 | |||||
| DOI | 10.12659/MSM.943404 | |||||
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| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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