The maxillofacial prosthodontist has the dilemma of obtaining jaw relation records with structures that have been altered anatomically and/or physiologically. In the maxillae, problems associated with stability of the recording base require the prosthodontist to equalize pressure as best he can in obtaining jaw records. The maxillofacial prosthodontist is faced with the additional problem of altered mandibular movements. Five patients with lateral resections of the mandible were tested in a pilot study. These patients could not make protrusive or repeatable lateral movements. Anatomic correlations, especially the unilateral action of the mylohyoid muscle, may account for this pattern of abnormal mandibular movements. This study will continue.
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