TY - THES AU - Nordberg, Rodney C. DA - 1987 DO - 10.6083/M4C53J0Q DO - DOI ID - 1292 KW - Orthodontic Appliances L1 - https://digitalcollections.ohsu.edu/record/1292/files/1994_etd.pdf L2 - https://digitalcollections.ohsu.edu/record/1292/files/1994_etd.pdf L4 - https://digitalcollections.ohsu.edu/record/1292/files/1994_etd.pdf LK - https://digitalcollections.ohsu.edu/record/1292/files/1994_etd.pdf PY - 1987 T1 - The force decay behavior of polyurethane ligature modules TI - The force decay behavior of polyurethane ligature modules UR - https://digitalcollections.ohsu.edu/record/1292/files/1994_etd.pdf Y1 - 1987 ER -