title: [Effect of different denture cleaning methods on roughness in resin denture base].
abstract: OBJECTIVE
  To determine the effect of different denture cleaning methods on surface roughness in resin denture base.
  
  
  METHODS
  We established 20 wafer samples of fuser base resin (14 mm×14 mm×3 mm), and then randomly divided them into 4 groups: group A was the control group, which were placed in water, while group B, C and D were the experimental groups, whose cleaning methods were toothbrush and water, toothbrush and toothpaste, denture cleaning tablets, respectively. Each procedure in group B and C lasted for 3 seconds, but group D lasted 5 min and repeated for 1080 times. We cleaned twice a day to simulate the method of cleaning dentures. Surface roughness was checked after different procedures by laser scanning confocal microscopy.
  
  
  RESULTS
  Significant difference on surface roughness was found between group B, C and A (P<0.05), while no significant difference in the surface roughness between group A and D (P>0.05).
  
  
  CONCLUSIONS
  Significant surface roughness alterations have been observed in toothbrush and toothpaste group, but no change has been found in denture cleaning tablets group, which does not produce scratches on the surface of resin denture base.
authors.affiliation: Department of Prosthodontics, School of Stomatology, China Medical University, Shenyang 110002, China yuhe740442@hotmail.com.
authors.forename: Wei
authors.initials: W
authors.lastname: Wang
authors.forename: Yuming
authors.initials: Y
authors.lastname: Hou
authors.forename: Jiajia
authors.initials: J
authors.lastname: Li
authors.forename: Yuhe
authors.initials: Y
authors.lastname: Zhu
authors.forename: Xindong
authors.initials: X
authors.lastname: Tang
authors.forename: Hongjun
authors.initials: H
authors.lastname: Ai
mesh_terms: D000180:Acrylic Resins; D003819:Denture Bases; D003820:Denture Cleansers; D003778:Dentures; D011897:Random Allocation; D013499:Surface Properties; D014099:Toothbrushing
chemical_list: D000180:Acrylic Resins; D003820:Denture Cleansers