Evaluation of the wear of glazed and polished zirconia crowns and the opposing natural teeth: A clinical pilot study

Selvaraj, Uvashri; Koli, Dheeraj; Jain, Veena; Nanda, Aditi

doi:10.1016/j.prosdent.2020.04.007

Cited by 21 publications

(11 citation statements)

References 29 publications

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“…In 12 months, a mean difference of 24.648 μm was obtained. In the meta-analysis, there was a high degree of heterogeneity between the combined studies [ 12 , 15 , 17 , 21 ] (Q test = 99.518; p -value = 0.0000) ( Figure 7 ).…”

Section: Resultsmentioning

confidence: 99%

“…Zirconia was used in the most significant number of investigations since this material is the hardest one regarding association with wear. A range of zirconia has been studied, such as Lava (3M ESPE) by [ 12 , 13 , 14 , 17 ], Zenostar (Wieland dental) by [ 19 , 20 , 21 ], and other studies by [ 4 , 9 , 15 , 16 ]. Feldspathic was also used as a coating material for different nuclei as a metallic alloy in [ 14 , 18 , 22 ], as ceramic infrastructures in studies by [ 11 , 18 ], and covering zirconia in the study by [ 9 ].…”

Section: Discussionmentioning

confidence: 99%

“…Most studies make impressions with the addition of silicones or polyvinylsiloxanes, and then the images are captured by profilometers [ 11 , 13 , 22 ], or extraoral scanners are used later, as in the studies by [ 14 , 15 , 16 , 17 , 18 , 19 , 20 ]. This could lead to distortion, since the image should previously go through the printing process and obtain the model.…”

Section: Discussionmentioning

confidence: 99%

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Enamel Wear of Antagonist Tooth Caused by Dental Ceramics: Systematic Review and Meta-Analysis

Velastegui

Montiel-Company

Agustín-Panadero

et al. 2022

JCM

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Background: This systematic review and meta-analysis aimed to evaluate the wear of the antagonist tooth in ceramic restorations. Material and methods: This study was carried out based on Preferred Reporting Items for Systematic Review and Meta-analysis (PRISMA) recommendations; it was also registered in PROSPERO (register number: CRD42022316252). Three databases were consulted in the literature search, Embase, Scopus, and Web of Science. The citation searching was conducted by two researchers independently. The clinical studies that evaluated wear in antagonist teeth concerning ceramic restoration were included. Twelve articles were selected after eliminating duplicates ones and applying the inclusion criteria, and two were chosen through citation. Fourteen articles were considered for the qualitative and quantitative analysis (meta-regression and meta-analysis). Results: The mean linear wear of the antagonist tooth in relation to feldspathic was 8.914 μm, for lithium disilicate it was 0.018 μm, and for zirconia it was 0.257 μm. The mean volumetric wear of the antagonist tooth in relation to feldspathic was 0.273 mm3, for hybrid ceramic it was 0.030 mm3, for lithium disilicate it was 0.018 mm3, and for zirconia it was 0.014 mm3. The mean natural tooth wear was 0.7974 μm per month. Tooth wear caused by zirconia at six months was 31.755 μm, at 12 months it was 24.648 μm, and at 24 months it was 20.662 μm. Conclusions: Feldspathic produces greater wear of the antagonist tooth from ceramic restorations linearly and volumetrically. In addition, zirconia generates the least wear that will decrease over time, and it will be equal to or less than the natural wear in the tooth.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Enamel Wear of Antagonist Tooth Caused by Dental Ceramics: Systematic Review and Meta-Analysis

Velastegui

Montiel-Company

Agustín-Panadero

et al. 2022

JCM

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“…These differences could also be attributed to the surface finish of zirconia. A clinical study by Selvaraj et al [42] showed that polished zirconia caused significantly less wear to enamel antagonists than glazed zirconia after 1 year. Moreover, an in vitro study by Kaizer et al [28] reported significantly less antagonist wear caused by polished monolithic zirconia than non-polished and glazed zirconia after 1.25 million chewing cycles.…”

Section: Discussionmentioning

confidence: 99%

Wear behavior and abrasiveness of monolithic CAD/CAM ceramics after simulated mastication

et al. 2022

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Objectives To evaluate the wear resistance and abrasiveness of monolithic CAD/CAM ceramics. Materials and methods Rectangular-shaped specimens (12 mm × 6.5 mm × 1.5 mm) were sectioned from the following CAD/CAM blocks (n = 10); partially crystallized lithium disilicate (PLD), experimental fully crystallized lithium disilicate (FLD), zirconia-reinforced lithium silicate (ZLS), super-translucent monolithic zirconia (SMZ), and ultra-translucent monolithic zirconia (UMZ). Silicon carbide papers were used to mechanically flatten and polish the surfaces. PLD specimens were subjected to a combined crystallization/glazing firing cycle. Ceramic specimens were mounted to the wear device and tested for 200,000 cycles against human premolars at 20 N force and 2 mm sliding distance. Artificial saliva was used as a lubricant. The teeth were scanned using micro-CT before and after the wear test and the generated models were overlapped to determine the volumetric tooth loss. Before and after the test, specimens’ weights and surface roughness (Ra) values were measured, and the differences were calculated. Scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX) were utilized for microstructural and chemical analysis. Statistical analysis was performed using one-way ANOVA or an equivalent test for non-parametric results. Significance level was set at P ≤ 0.05. Results The type of ceramic material affected the ceramic and antagonist wear rates (P < 0.001). PLD and ZLS had the highest ceramic and antagonist wear, whereas UMZ and SMZ demonstrated the lowest wear values. The FLD group showed comparable antagonist wear and significantly less ceramic wear than PLD and ZLS. Conclusions Monolithic zirconia demonstrated the best wear resistance and least abrasiveness to the antagonist. The experimental lithium disilicate was more wear-resistant than other glass–ceramic groups. Clinical relevance Monolithic zirconia is wear-resistant and gentle on the antagonist. In contrast, glass–ceramics are more abrasive to enamel.

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“…Several studies have been undertaken to lessen the damage caused by zirconia on natural teeth restorations by a range of finishing processes that include polishing, finegrinding, coarse-grinding, glazing, reglazing, and heat treatments [17][18][19][20]. Post-processing techniques after adjustments restores the surface smoothness so that they do not impede the mechanical performance and the wear of the teeth/monolithic restoration.…”

Section: Introductionmentioning

confidence: 99%

3-D Surface Morphological Characterization of CAD/CAM Milled Dental Zirconia: An In Vitro Study of the Effect of Post-Fabrication Processes

Patil

Jebaseelan

2022

Materials

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Objective: To investigate the effect on zirconia surface of the post-fabrication surface treatments on the morphological characteristics and mechanical properties of CAD/CAM milled dental zirconia specimens as well as to identify the critical parameters in the measurement of oral retention under in vitro circumstances. Method: The zirconia specimens (N = 20, n = 4) were subjected to CAD/CAM milling and divided into five groups. The specifications were: Group G1—sintered; Group G2—sintered followed by a polishing process; Group G3—sintered followed by polishing and sandblasting with alumina particles Al2O3 (110 µm); Group G4—sintered followed by sandblasting; Group G5—sintered followed by sandblasting with polishing as the end process. All the groups were subjected to Fretting wear tests, 3-D surface roughness measurements, and Vickers’s Micro hardness tests. Investigation of the phase transformation using XRD, and surface feature examination using SEM were also carried out. Additionally, one-way ANOVA, Tukey, and Pearson correlations were statistically analysed. Results: The fabrication processes had a significant effect on the performance of zirconia specimens in all the groups (p > 0.05). Specimens that underwent polishing as the last process exhibited lower surface roughness. The monoclinic phase of zirconia was observed in all the specimens before and after wear except for those in the G2 and G5 groups, where polishing was the end process. In G5, the post-wear surface properties revealed lower surface roughness and hardness. Further, the SEM and 3-D topography show grooves as seen by the dale void volume (Vvv) values; shallow valley depth (Svk); micro craters; and wear track. Conclusion: Specimens in G5 that were subjected to multistep post-fabrication process, namely sandblasting followed by polishing, yielded better results when compared to those in the other groups (G1, G2, G3, and G4). G5 with an interlayer of alumina is recommended for clinical applications due to its enhanced surface properties, mechanical properties, and low wear.

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Evaluation of the wear of glazed and polished zirconia crowns and the opposing natural teeth: A clinical pilot study

Cited by 21 publications

References 29 publications

Enamel Wear of Antagonist Tooth Caused by Dental Ceramics: Systematic Review and Meta-Analysis

Enamel Wear of Antagonist Tooth Caused by Dental Ceramics: Systematic Review and Meta-Analysis

Wear behavior and abrasiveness of monolithic CAD/CAM ceramics after simulated mastication

3-D Surface Morphological Characterization of CAD/CAM Milled Dental Zirconia: An In Vitro Study of the Effect of Post-Fabrication Processes

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