| Full text | |
| Author(s): |
Silva, Ana Leticia Franklin
[1]
;
Geng-Vivanco, Rocio
[1]
;
Tonani-Torrieri, Rafaella
[1]
;
Pires-de-Souza, Fernanda de Carvalho Panzeri
[1]
Total Authors: 4
|
| Affiliation: | [1] Univ Sao Paulo, Dept Dent Mat & Prosthodont, Ribeirao Preto Sch Dent, Ave Cafe S-N, BR-14040904 Ribeirao Preto, SP - Brazil
Total Affiliations: 1
|
| Document type: | Journal article |
| Source: | COLOR RESEARCH AND APPLICATION; v. 46, n. 4, p. 901-908, AUG 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
This study evaluated the stain resistance and surface roughness alteration of a CAD/CAM processed hybrid ceramic. Specimens were fabricated: 30 of resin-based composite (RBC; Filtek Z350), 30 of ceramic (IPS emax Press) and 60 of hybrid ceramic (Lava Ultimate). Color, translucency (BYK Gardner), whiteness index for dentistry (WID) and surface roughness (Surftest SJ-201P) measurements were made. Samples were randomly separated into three groups: Coffee staining (3 hours/day), coffee staining + mechanical toothbrushing (3 hours/day-staining + 40 cycles-toothbrushing) and storage in distilled water (control), all for 30 days Afterwards, all specimens were polished: RBC (n = 10) with a composite polishing kit (Enhance Dentsply), ceramic (n = 10) with a ceramic one (Eve Diapol), half of the hybrid ceramic (n = 10) with the composite polishing kit and the other half (n = 10) with the ceramic kit. Then, final readouts were obtained. Data was analyzed by two-way analysis of variance. The hybrid ceramic exhibited intermediate color change after staining (P < .05). The hybrid ceramic presented WID chance similar to ceramic in control group (P > .05). After staining/brushing, the hybrid ceramic polishing with the ceramic kit revealed the greatest translucency change (P < .05). RBC and hybrid ceramic polishing with the resin kit presented similar surface roughness alteration (P > .05), except after staining/brushing (P < .05). Also, ceramic was different from the hybrid ceramic polishing with the ceramic kit (P < .05). The hybrid ceramic showed intermediate staining and roughness compared to the RBC and the ceramic. The ceramic polishing kit was more effective in removing stains from the hybrid ceramic. (AU) | |
| FAPESP's process: | 17/25622-5 - Resistance to staining and roughness of the composites processed by CAD / CAM |
| Grantee: | Ana Leticia Franklin Silva |
| Support Opportunities: | Scholarships in Brazil - Scientific Initiation |