title: [Development and property test of synthetic macromolecular resin class of comfort denture adhesive].
abstract: OBJECTIVE
  To prepare a new synthetic macromolecular resin class of denture adhesive (named Comfort-DA).
  
  
  METHODS
  Twelve different formulae for denture adhesive were designed by orthogonal design. Each factor affecting tensile bond strength of adhesive was analyzed by ANNOVA to select the best formula. Then the chemical and physical properties, such as tensile bond strength, pH value, and viscosity, were evaluated and compared with Fittydent in vitro also.
  
  
  RESULTS
  The effect of content of polyvinyl acetate and cellulose ether on tensile bond strength exhibited no statistical significance (P > 0.05), while ethyl alcohol and CMC-Na showed statistical significance and mutual action (P < 0.05). Results of testing viscosity and shearing stress showed that there was no significant difference between Fittydent and Comfort-DA (P > 0.05), while Fittydent exhibited a significantly lower tensile bond strength than the prepared one (P < 0.05). The prepared adhesive demonstrated a neutral or slightly basic pH.
  
  
  CONCLUSIONS
  The generally favorable in vitro performance of the prepared adhesive (Comfort-DA) formulation indicated that it might be efficacious denture adhesive.
authors.affiliation: Presently working as postdoctoral fellow in West China College of Stomatology, Sichuan University, Chengdu 610041, China.
authors.forename: Ke
authors.initials: K
authors.lastname: Zhao
authors.forename: Xiangrong
authors.initials: X
authors.lastname: Cheng
authors.forename: Zhian
authors.initials: Z
authors.lastname: Li
authors.forename: Anhua
authors.initials: A
authors.lastname: Yi
authors.forename: Li
authors.initials: L
authors.lastname: Ma
mesh_terms: D000269:Adhesives / Q000737:chemistry*; D003188:Composite Resins / Q000737:chemistry*; D001840:Dental Bonding; D003781:Denture Retention / Q000379:methods*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D013718:Tensile Strength
chemical_list: D000269:Adhesives; D003188:Composite Resins