| Autor: |
Joseane Silva, Madalena Lucia Pinheiro Dias Engler, Rodrigo Baumgardt Barbosa Lima, Maria Jesús Suarez, Jean-Pierre Guy Oliver Salomon, Claudia Angela Maziero Volpato |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
The Journal of prosthetic dentistry. 127(3) |
| ISSN: |
1097-6841 |
| Popis: |
Whether color changes in resin nanoceramic (RNC) restorations can occur because of material and adhesive interface degradation is unclear.The purpose of this in vitro study was to evaluate the color of RNCs submitted to surface treatments, cementation, and aging.RNC specimens (N=120) were produced with a thickness of 0.5 mm. The No Treatment-High/Low Translucency (NT-HT/LT) groups did not receive treatments; the Airborne-particle Abrasion-High/Low Translucency (AA-HT/LT) groups were airborne-particle abraded, and the Airborne-particle Abrasion Silane-High/Low Translucency (AASIL-HT/LT) groups received airborne-particle abrasion and a silane agent. Single specimens (n=60) were measured on a spectrophotometer before and after aging (50 000 cycles). The other half was mounted on composite resin bases and measured. The cleaned specimens were cemented (C) on the bases and measured (T0 and T1). ΔEFor single specimens, the greatest ΔEAging affected the color of the RNCs evaluated. The single specimens showed greater color differences than the cemented specimens, reinforcing the importance of the adhesive cement in the optical behavior of thin restorations. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect