Tanu Gupta, Ashish Choudhary, Prabhakar Gupta, and Sachin Kumar, “AN IN VITRO RESEARCH EXAMINED THE RETENTION OF METALLIC AND NON-METALLIC DOUBLE CROWN RETAINED MANDIBULAR OVERDENTURES ON IMPLANTS”, J Popl Ther Clin Pharmacol, vol. 30, no. 17, pp. 1691–1701, Sep. 2023.