Effect of Ultraviolet Light ITradiation Artificial Teeth on Bonding ofExperimental Composite Resin

نویسندگان

  • Hidekazu TAKAHASHI
  • Naohiko IWASAKI
چکیده

The purpose of the present study was to evaluate how ultraviolet light <UV) irradiation using an ordinary UV sterilizer would affect the bonding of experimental composite resins to an autopolymerizing acrylic resin. To this end, three composite resins and one unfi11ed resin-of which the compositions were similar to commercial composite resin artifieial teeth were prepared as repair composites. Their shear bond strengths after UV irradiation for one to 60 minutes were signifieantly greater than those before UV imadiation regardless of eornpesite resin type. Failure mode after UV irradiation for ene to 60 minutes was mainly cohesive failure of the composite resins, but that before UV irradiation and after 24 hours' irradiation was mainly adhesive failure. These results thus suggested that a short period of UV irradiation on

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تاریخ انتشار 2017