title: Colour stability of acrylic resin denture teeth after immersion in different beverages.
abstract: The colour stability of acrylic resin denture teeth in beverages was investigated. A spectrophotometer measured the colour (CIE-L*a*b* system) of all specimens after storage in distilled water/for 24 h at 37 degrees C (T0). Specimens were then immersed in various beverages. After 15 days (T1) and 30 days (T2), for each material, the mean deltaE values were calculated and compared by two-way ANOVA and Tukey intervals (alpha = 0.05). In the deltaT0T1 period, specimens stored in red wine were significantly discoloured, compared to distilled water (P = 0.003). There was no difference between immersion solutions in deltaET0T2 (P = 0.772) and in deltaET1T2 (P = 0.058), and no difference between materials in all immersion periods.
authors.forename: B E
authors.initials: BE
authors.lastname: Arana-Correa
authors.forename: W F
authors.initials: WF
authors.lastname: Sepúlveda-Navarro
authors.forename: F L E
authors.initials: FL
authors.lastname: Florez
authors.forename: V M
authors.initials: VM
authors.lastname: Urban
authors.forename: J H
authors.initials: JH
authors.lastname: Jorge
authors.forename: N H
authors.initials: NH
authors.lastname: Campanha
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry*; D001628:Beverages; D002253:Carbonated Beverages; D003069:Coffee; D003116:Color; D003764:Dental Materials / Q000737:chemistry*; D006801:Humans; D007101:Immersion; D008422:Materials Testing; D013053:Spectrophotometry / Q000379:methods; D013499:Surface Properties; D013696:Temperature; D013997:Time Factors; D014093:Tooth, Artificial; D014867:Water / Q000737:chemistry; D014920:Wine
chemical_list: D000180:Acrylic Resins; D003069:Coffee; D003764:Dental Materials; D014867:Water