This study evaluated the effect of prophylactic polishing pastes on the roughness and translucency of lithium disilicate ceramic. Sixty specimens were obtained from e.max CAD blocks. After ground finishing, each specimen was glazed and randomly divided into one of five groups, including one control group. They were then polished with one of four types of prophylactic paste. Group A: Nupro coarse, group B: Nupro medium, group C: Nupro fine, and group D: Cleanic. Specimens were polished with these pastes for 2 minutes with a prophy cup mounted on the handpiece under a constant load of 400 gr at 3,000 rpm. After polishing, the specimens were cleaned ultrasonically in distilled water and dried. The surface roughness (Ra, μm) was then measured using a surface profilometer. The translucency analysis was carried out on the glazed (control group) and polished specimens using a dental spectrophotometer. For each specimen, measurements were made once with a white and once with a black background. Group A showed significantly less surface roughness compared with the control group and groups B, C, and D. The control group showed significantly higher translucency compared with the other groups (P < .05). Despite the good abrasion resistance of e.max CAD lithium disilicate ceramic, prophylactic pastes produced a reduction in translucency. Surface roughness varied depending on the paste used. Polishing procedures should be carried out with caution to not compromise the esthetics achieved with prosthetic restorations.

Monaco C, Arena A, Özcan M. (2014). Effect of prophylactic polishing pastes on roughness and translucency of lithium disilicate ceramic. THE INTERNATIONAL JOURNAL OF PERIODONTICS & RESTORATIVE DENTISTRY, 34, 26-29 [10.11607/prd.1155.].

Effect of prophylactic polishing pastes on roughness and translucency of lithium disilicate ceramic.

MONACO, CARLO;ARENA, ANTONIO;
2014

Abstract

This study evaluated the effect of prophylactic polishing pastes on the roughness and translucency of lithium disilicate ceramic. Sixty specimens were obtained from e.max CAD blocks. After ground finishing, each specimen was glazed and randomly divided into one of five groups, including one control group. They were then polished with one of four types of prophylactic paste. Group A: Nupro coarse, group B: Nupro medium, group C: Nupro fine, and group D: Cleanic. Specimens were polished with these pastes for 2 minutes with a prophy cup mounted on the handpiece under a constant load of 400 gr at 3,000 rpm. After polishing, the specimens were cleaned ultrasonically in distilled water and dried. The surface roughness (Ra, μm) was then measured using a surface profilometer. The translucency analysis was carried out on the glazed (control group) and polished specimens using a dental spectrophotometer. For each specimen, measurements were made once with a white and once with a black background. Group A showed significantly less surface roughness compared with the control group and groups B, C, and D. The control group showed significantly higher translucency compared with the other groups (P < .05). Despite the good abrasion resistance of e.max CAD lithium disilicate ceramic, prophylactic pastes produced a reduction in translucency. Surface roughness varied depending on the paste used. Polishing procedures should be carried out with caution to not compromise the esthetics achieved with prosthetic restorations.
2014
Monaco C, Arena A, Özcan M. (2014). Effect of prophylactic polishing pastes on roughness and translucency of lithium disilicate ceramic. THE INTERNATIONAL JOURNAL OF PERIODONTICS & RESTORATIVE DENTISTRY, 34, 26-29 [10.11607/prd.1155.].
Monaco C; Arena A; Özcan M.
File in questo prodotto:
Eventuali allegati, non sono esposti

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/258090
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? 4
  • Scopus 12
  • ???jsp.display-item.citation.isi??? 0
social impact