Shear bond strength of denture reline polymers to denture base polymers.
OBJECTIVE
This study was undertaken to characterize the shear bond strength established between four denture base polymers and four denture reline polymers.


METHODS
Cylindric columns of denture reline polymers were bonded to columns of denture base polymers. Specimens were immersed in water for 4 months and then thermocycled. The strength at which the bond failed under shear stress was recorded.


RESULTS
Significant differences in bond strength existed among the specimens because of the denture base polymer variable, the denture reline polymer variable, and their interaction (P < .05). A light-activated denture base polymer (Triad) bonded adequately with a light-activated reline polymer (Triad) but less well with the other reline polymers tested. The bond strength established between some denture base polymers and a different light-activated reline polymer (Rebaron LC) was relatively low.


CONCLUSIONS
The type of denture base polymer and denture reline polymer affected the shear bond strength between them.
Takahashi
Y
Y
Department of Prosthodontics, Fukuoka Dental College, Fukuoka, Japan.
Chai
J
J
D000180:Acrylic Resins / Q000737:chemistry; D000704:Analysis of Variance; D016001:Confidence Intervals; D001840:Dental Bonding; D003764:Dental Materials / Q000737:chemistry*; D003819:Denture Bases; D003822:Denture Liners; D003823:Denture Rebasing; D006801:Humans; D007101:Immersion; D008689:Methacrylates / Q000737:chemistry; D008768:Methylmethacrylates / Q000737:chemistry; D010968:Plasticizers / Q000737:chemistry; D011108:Polymers / Q000737:chemistry*; D019904:Polymethyl Methacrylate / Q000737:chemistry; D011140:Polyurethanes / Q000737:chemistry; D012822:Silicon Dioxide / Q000737:chemistry; D013223:Statistics as Topic; D013314:Stress, Mechanical; D013499:Surface Properties; D013816:Thermodynamics; D014867:Water
D000180:Acrylic Resins; D003764:Dental Materials; D008689:Methacrylates; D008768:Methylmethacrylates; D010968:Plasticizers; D011108:Polymers; D011140:Polyurethanes; D014867:Water; C060386:Triad resin; C075051:Acron MC; C029824:urethane dimethacrylate luting resin; D012822:Silicon Dioxide; C009931:poly(ethylmethacrylate); D019904:Polymethyl Methacrylate