Effect of mouthwash and accelerated aging on the color stability of esthetic restorative materials.
OBJECTIVE
To evaluate the color stability of esthetic restorative materials after immersion in mouthwashes and accelerated aging.


METHODS
Compomers and resin-based composites (RBC) were measured at baseline and repeatedly after immersion in three kinds of mouthwash (Listerine, Peridex, Rembrandt Age Defying) for 24 hrs and 7 days, and after aging for 150 kJ/m2. Color was measured according to CIE L*a*b* color scale on a reflection spectrophotometer.


RESULTS
After immersion for 7 days, the mouthwash groups did not produce significantly higher color changes than the distilled water group, except with some mouthwashes used with Tetric-Ceram. After immersion for 7 days and aging for 150 kJ/m2, the mouthwash groups did not produce significantly higher color changes than the distilled water group. Aging in weathering chamber produced color change (deltaE*) of 1.1-3.9, which was mainly influenced by the material. With some exceptions, the color changes from immersion of the RBCs and compomers in mouthwashes were not perceptible (deltaE*<3.3).
Lee
Y K
YK
Department of Dental Biomaterials, College of Dentistry, Seoul National University, Korea.
El Zawahry
M
M
Noaman
K M
KM
Powers
J M
JM
D000704:Analysis of Variance; D000891:Anti-Infective Agents, Local / Q000737:chemistry; D002710:Chlorhexidine / Q000031:analogs & derivatives* / Q000737:chemistry; D003116:Color; D020770:Compomers / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry*; D003793:Dental Restoration, Permanent; D004338:Drug Combinations; D004955:Esthetics, Dental; D005899:Glass Ionomer Cements / Q000737:chemistry; D006801:Humans; D006861:Hydrogen Peroxide; D007101:Immersion; D008422:Materials Testing; D009067:Mouthwashes / Q000737:chemistry*; D009822:Oils, Volatile / Q000737:chemistry; D012459:Salicylates / Q000737:chemistry; D013053:Spectrophotometry; D013223:Statistics as Topic; D013499:Surface Properties; D013729:Terpenes / Q000737:chemistry; D013997:Time Factors
C406265:Alert composite resin; D000891:Anti-Infective Agents, Local; D020770:Compomers; D003188:Composite Resins; D004338:Drug Combinations; C118368:F2000 cement; D005899:Glass Ionomer Cements; D009067:Mouthwashes; D009822:Oils, Volatile; C098977:Rembrandt Mouthwash; D012459:Salicylates; D013729:Terpenes; C121818:Tetric ceram; C057473:Listerine; D006861:Hydrogen Peroxide; C010882:chlorhexidine gluconate; D002710:Chlorhexidine