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Maxillary cuspids are commonly included in ablative block resections in maxillectomy patients. Although the remaining incisors are poor abutments for interim or definitive obturators, they must be used if adequate retention and support is to be achieved. Orthodontic biomechanical concepts for removable appliances offer solutions for the treatment of these patients. The proper application of these concepts can improve retention, support, and force distribution to the anterior teeth and is particularly useful in younger patients when long-term maintenance of teeth is critical. The purpose of this article is to describe the rationale for this approach and its application to interim and definitive Aramany Class I and II obturators.