Wear Behavior of Monolithic Zirconia after Staining, Glazing, and Polishing Opposing Dental Restorative Materials: An In Vitro Study

被引:5
作者
Fiorin, Livia [1 ]
Oliveira, Paulo Eduardo Barros Souza [2 ]
Silva, Allan Oliveira da [1 ]
Faria, Adriana Claudia Lapria [2 ]
Macedo, Ana Paula [2 ]
Ribeiro, Ricardo Faria [2 ]
Rodrigues, Renata Cristina Silveira [2 ]
机构
[1] Univ Sao Paulo, Dept Dent Mat & Prosthodont, Oral Rehabil Grad Program, Dent Sch Ribeirao Preto, BR-14040904 Ribeirao Preto, SP, Brazil
[2] Univ Sao Paulo, Dept Dent Mat & Prosthodont, Dent Sch Ribeirao Preto, BR-14040904 Ribeirao Preto, SP, Brazil
基金
英国科研创新办公室; 巴西圣保罗研究基金会;
关键词
monolithic zirconia; lithium disilicate; leucite-reinforced ceramic; composite resin; abrasion; two-body wear; restorative dental materials; direct and indirect restorations; SURFACE-ROUGHNESS; FLEXURAL STRENGTH; 2-BODY WEAR; ENAMEL; PERFORMANCE; COMPOSITES; CERAMICS; COLOR;
D O I
10.3390/coatings13020466
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The purpose of this in vitro study was to compare the effect of staining, glazing, and polishing on the wear behavior of stabilized zirconia with 5 mol% of yttrium oxide (5Y-TZP) opposing 5Y-TZP, leucite-reinforced ceramic (LC), lithium disilicate (LD), and microhybrid composite resin (MCR). Hemispheres of 5Y-TZP were divided into six groups (n = 10) according to the finishing procedure: C (control), S (staining), G (glazing), P (polishings), SG (staining plus glazing), and SP (staining plus polishing). The two-body wear test (2BW) was performed (20 N load, at 2 Hz, until 300,000 cycles). Vertical height loss of hemispheres (VHL) and wear depth of restorative materials (WD) were analyzed using a profile projector and laser confocal microscope, respectively. Data of VHL and WD were analyzed using a generalized linear model by the Wald test and t post hoc test with the Bonferroni adjustment (alpha = 0.05). The staining, glazing, polishing, and restorative material had a significant effect (p < 0.05) on VHL and WD. Polishing reduced VHL opposing MCR, LC, and LD. There was an increase in WD to G opposing LD and SG opposing MCR. The 5Y-TZP presented the highest wear resistance, while MCR presented the lowest. Polishing was recommended to promote staining durability and decrease wear rates opposing MCR and LD.
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页数:11
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