Substituting maxillary first premolars for maxillary impacted canines in cases requiring the extraction of dental units as part of orthodontic correction.
作者信息
Altman J A, Arnold H, Spector P
出版信息
Am J Orthod. 1979 Jun;75(6):618-29. doi: 10.1016/0002-9416(79)90094-0.