TY - RPRT TI - Simultaneous intrusion and retraction using a three-piece base arch. AU - B Shroff AU - W M Yoon AU - S J Lindauer AU - C J Burstone PY - 1997 DO - 10.1043/0003-3219(1997)067<0455:siarua>2.3.co;2 UR - https://pubmed.ncbi.nlm.nih.gov/9428964/ ID - 9428964 ER -