title: Effect of denture cleansers on the color stability of heat cure acrylic resin.
abstract: OBJECTIVE
  To compare the color stability of heat cure acrylic resin after immersion in distilled water and denture cleansers.
  
  
  METHODS
  In-vitro experimental study.
  
  
  METHODS
  Dr. Ishrat-ul-Ebad Khan Institute of Oral Health Sciences, Dow University of Health Sciences and Al-Karam Textiles, Karachi, from January to April 2012.
  
  
  METHODS
  Seventy two rectangular shaped specimens; 18 specimens were measured at baseline (control group) of the study (0 day), 18 specimens were immersed in distilled water. Eighteen (18) in Fittydent denture cleanser tablets for 10 minutes and eighteen (18) in Dentipur denture cleanser tablets for 10 minutes. Specimens were polished and stored in istilled water for 24 hours prior to experiment. After 60 days of immersion, the specimens were tested for color changes with spectrophotometer. SPSS 16 was used for statistical analysis.
  
  
  RESULTS
  There was statistically significant difference in the color change (ΔE) among all groups (p < 0.001) after 60 days of immersion. At baseline (0 day), trace amount of color change was observed whereas when specimens were immersed in Fittydent denture cleansers tablets for 60 days noticeable change in color was observed. Very slight change in color was bserved when specimens were immersed in distilled water and dentipur denture cleanser solution.
  
  
  CONCLUSIONS
  The color stability of denture base acrylic resin was influenced by the type of denture cleansers used.
authors.affiliation: Science of Dental Materials, Dow Dental College, Dow University of Health Sciences, Karachi..
authors.forename: Faiza
authors.initials: F
authors.lastname: Amin
authors.affiliation: Science of Dental Materials, Liaquat College of Medicine and Dentistry, Karachi.
authors.forename: Shumaila
authors.initials: S
authors.lastname: Iqbal
authors.affiliation: Department of Prosthodontics, Tabuk Specialist Dental Center, Tabuk, Ministry of Health, Kingdom of Saudi Arabia.
authors.forename: Syed
authors.initials: S
authors.lastname: Azizuddin
authors.affiliation: Department of Microbiology, Dr. Ziauddin University Hospital, North Nazimabad Campus, Karachi.
authors.forename: Faisal Iqbal
authors.initials: FI
authors.lastname: Afridi
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry*; D003819:Denture Bases; D003820:Denture Cleansers / Q000009:adverse effects / Q000494:pharmacology*; D006358:Hot Temperature; D006801:Humans; D008422:Materials Testing; D017797:Prosthesis Coloring; D013053:Spectrophotometry
chemical_list: D000180:Acrylic Resins; D003820:Denture Cleansers