Cockle (Anadara granosa) is a kind of sea shell which can be used together with acrylic resin as artificial tooth material. Within this study, cockle bioceramic was taken as the replacement particles of artificial tooth. Bioceramic powder precursor was prepared by burning, grinding, honing to make it smooth and sift in order to have bioceramic precursor particles with the roughness number sieve level #125. The concerning mechanical properties within this study were compressive strength and micro structure of BACK (cockle bioceramic)+TRA (acrylic resin powder) replacement material. Then, these mechanical properties were compared to tooth mechanical properties. BACK powder blend composition is 0.5; 0.75; 1.375; and 1.875 gram of BACK+TRA+CRA (acrylic resin liquid) material weight. The optimum mechanical properties were obtained in the blend with 0.75 grams BACK. BACK+TRA blend had higher compressive strength than tooth natural strength, so it had potency to be applied as tooth replacement material referring to its mechanical properties.