TY - GEN AU - Erdoğan,E AU - Erdogăn,E TI - [Classification of functional orthopaedic appliances in our opinions] SN - 1300-3550 PY - 1991///0530 KW - Activator Appliances KW - classification KW - Humans KW - Orthodontics, Corrective N1 - Publication Type: English Abstract; Journal Article ER -