The effects of different polishing techniques on the staining resistance of CAD/CAM resin-ceramics
The Journal of Advanced Prosthodontics
;
: 417-422, 2016.
Article
in English
| WPRIM
| ID: wpr-213534
ABSTRACT
PURPOSE:
The purposes of this study were to evaluate the staining resistance of CAD/CAM resin-ceramics polished with different techniques and to determine the effectiveness of the polishing techniques on resin-ceramics, comparing it with that of a glazed glass-ceramic. MATERIALS ANDMETHODS:
Four different CAD/CAM ceramics (feldspathic ceramic C-CEREC Blocs, (SIRONA) and three resin-ceramics L-Lava Ultimate, (3M ESPE), E-Enamic, (VITA) and CS-CeraSmart, (GC)) and one light cure composite resin ME-Clearfil Majesty Esthetic (Kuraray) were used. Only C samples were glazed (gl). Other restorations were divided into four groups according to the polishing technique nonpolished control group (c), a group polished with light cure liquid polish (Biscover LV BISCO) (bb), a group polished with ceramic polishing kit (Diapol, EVE) (cd), and a group polished with composite polishing kit (Clearfil Twist Dia, Kuraray) (kc). Glazed C samples and the polished samples were further divided into four subgroups and immersed into different solutions distilled water, tea, coffee, and fermented black carrot juice. Eight samples (8 × 8 × 1 mm) were prepared for each subgroup. According to CIELab system, four color measurements were made before immersion, immersion after 1 day, after 1 week, and after 1 month. Data were analyzed with repeated measures of ANOVA (α=.05).RESULTS:
The highest staining resistance was found in gl samples. There was no difference among gl, kc and cd (P>.05). Staining resistance of gl was significantly higher than that of bb (P<.05). Staining resistances of E and CS were significantly higher than those of L and ME (P<.05).CONCLUSION:
Ceramic and composite polishing kits can be used for resin ceramics as a counterpart of glazing procedure used for full ceramic materials. Liquid polish has limited indications for resin ceramics.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Tea
/
Water
/
Ceramics
/
Coffee
/
Daucus carota
/
Immersion
Language:
English
Journal:
The Journal of Advanced Prosthodontics
Year:
2016
Type:
Article
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