In the United States as well as in Europe there have been forum discussions as to the effectiveness of active and passive bands. The active (or dynamic) band concept is well-defined in the articles published by Cranial Technologies Inc. (see Home, click on 1994 and 1998) and can be simply considered a localised action on the deformed part of the head, resulting in a natural remoulding.
Practically the only articles published in international scientific reviews on the results of orthopedic treatment of plagiocephaly correpond to prospective studies carried out with DOC Band®. There are no results for other band types and even less so for passive or local band types.