TY - GEN AU - Bowen, R L C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1967-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.RPT.9611 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1967 TI - A laboratory and clinical comparison of silicate cements and a direct filling resin, with and without fused silica::progress report ER -