eng Oriental Scientific Publishing Company Biomedical and Pharmacology Journal 0974-6242 2018-09-21 11 3 1491 1500 10.13005/bpj/1516 22615 article Wedyan Yaseen Hasan 1 Mohammed Moudhaffar Ali 2 Department of Prosthetic Dentistry, College of Dentistry, University of Baghdad, Iraq. Department of Prosthodontics, College of Dentistry, University of Baghdad. This study aimed to assess the effect of halloysite nanotubes(HNT_S) addition into soft denture lining material on thermal conductivity and thermal diffusivity, shear bond strength, tear strength, and surface roughness of the lining material. HNT_S with 0.75% and 1% concentration by weight (according to the pilot study) were added into acrylic-based heat cured soft denture liner. One hundred and twenty different specimens were prepared and divided into four groups according to the test to be performed. The thermal conductivity and thermal diffusivity of the soft liner/ HNT_S composite were evaluated, shear bond strength, tear strength, and surface roughness were also measured, the results showed that there was a highly significant increase in thermal conductivity of the experimental specimens in comparison with the control specimens and a non-significant change in the thermal diffusivity of the experimental specimens. The shear bond strength between the soft liner and the acrylic denture base and tear strength showed a highly significant increase, but a non- significant difference in the surface roughness test was observed in all experimental specimens. Thus it can be concluded that the addition of HNT_S can provide soft liner material with improved thermal conductivity, shear bond strength and tear strength while thermal diffusivity and surface roughness were non-significantly changed when the concentration of HNTs  nanoparticles increased. https://biomedpharmajournal.org/vol11no3/evaluation-of-thermal-conductivity-and-some-other-properties-of-heat-cured-denture-soft-liner-reinforced-by-halloysite-nanotubes/ Halloysite Nanotubes Soft Denture Liner Shear Bond Strength Tear Strength Thermal Conductivity