Dental prostheses are an essential component of restorative dentistry, enhancing not only function but also aesthetics and oral health. Cobalt-chromium (Co-Cr) alloys are among the materials commonly used for dental frameworks, primarily due to their corrosion resistance and high mechanical strength. This study examined the effects of integrating molybdenum disulfide (MoS2) at different concentrations (0%wt, 6%et, and 8%wt) on the mechanical properties and corrosion resistance of Co-Cr dental alloys. It fabricated 90 specimens (30 per group) and assessed their compressive strength, hardness, and corrosion resistance. Incorporating MoS2 markedly improved the mechanical characteristics of the Co-Cr alloy. Compressive strength and hardness differed significantly across groups (p < 0.05). They were greatest in the 8%wt MoS2 group (141.3 MPa and 912.1 IU, respectively), followed by the 6%wt MoS₂ group (131 MPa and 693.6 IU), and smallest in the 0%wt MoS2 group (87.72 MPa and 595.3 IU). Corrosion resistance increased with the MoS2 concentration and was greatest in the 8%wt MoS2 group. The presence of Mo facilitated the development of a protective oxide layer, thereby reducing corrosion. Our findings indicate that incorporating MoS2 into Co-Cr dental alloys can improve mechanical strength, durability, and corrosion resistance. Such improvements may result in longer-lasting, more durable dental prostheses, benefiting both practitioners and patients. Future research should focus on the long-term clinical performance and biocompatibility of MoS2-enhanced Co-Cr alloys to confirm their use in dental prostheses.
Drewil,S. and Al Sudany,A. Jameel (2026). Effect of molybdenum disulfide addition on the flexure and hardness resistance of cobalt-chromium dental alloys. Chemical Review and Letters, 9(1), 201-208. doi: 10.22034/crl.2025.520804.1587
MLA
Drewil,S. , and Al Sudany,A. Jameel. "Effect of molybdenum disulfide addition on the flexure and hardness resistance of cobalt-chromium dental alloys", Chemical Review and Letters, 9, 1, 2026, 201-208. doi: 10.22034/crl.2025.520804.1587
HARVARD
Drewil S., Al Sudany A. Jameel (2026). 'Effect of molybdenum disulfide addition on the flexure and hardness resistance of cobalt-chromium dental alloys', Chemical Review and Letters, 9(1), pp. 201-208. doi: 10.22034/crl.2025.520804.1587
CHICAGO
S. Drewil and A. Jameel Al Sudany, "Effect of molybdenum disulfide addition on the flexure and hardness resistance of cobalt-chromium dental alloys," Chemical Review and Letters, 9 1 (2026): 201-208, doi: 10.22034/crl.2025.520804.1587
VANCOUVER
Drewil S., Al Sudany A. Jameel Effect of molybdenum disulfide addition on the flexure and hardness resistance of cobalt-chromium dental alloys. Chem. Rev. Lett., 2026; 9(1): 201-208. doi: 10.22034/crl.2025.520804.1587
