TY - THES DO - 10.6083/M4N878JM DO - DOI T1 - Fracture toughness, clarity, and staining of thermoplastic orthodontic retainer materials DA - 2014 AU - Knapp, Brandon L1 - https://digitalcollections.ohsu.edu/record/2908/files/3678_etd.pdf PB - Oregon Health and Science University PY - 2014 ID - 2908 L4 - https://digitalcollections.ohsu.edu/record/2908/files/3678_etd.pdf KW - Orthodontic Retainers KW - Staining and Labeling KW - Polyethylenes KW - Orthodontics KW - dental materials analysis TI - Fracture toughness, clarity, and staining of thermoplastic orthodontic retainer materials Y1 - 2014 L2 - https://digitalcollections.ohsu.edu/record/2908/files/3678_etd.pdf LK - https://digitalcollections.ohsu.edu/record/2908/files/3678_etd.pdf UR - https://digitalcollections.ohsu.edu/record/2908/files/3678_etd.pdf ER -