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The graft-versus-host disease reaction is an immunologic consequence resulting from the grafting of immunocompetent cells from one individual to an immunocompromised host. The oral manifestations of this disease process include severe oral pain, xerostemia, ulcerative lesions, and mucositis. With appropriate history and diagnostic testing, these lesions can be differentiated from other oral diseases having similar clinical appearance.

Obstruction of the lacrimal drainage apparatus may result in excessive tearing or epiphora. This may occur as a result of a traumatic injury or accumulation of debris, mucus, or pus. In nuclear dacryoscintigraphy, a radioactive solution is introduced into the conjunctival sac by pipette and allowed to follow the flow of the tear solution through the lacrimal drainage system. This article will review normal lacrimal anatomy and indications for nuclear dacryoscintigraphy in oral and maxillofacial surgery.

Intraoral surgical procedures produce scar tissue formation that may limit mandibular opening. Many procedures have been developed to release these scar contractures, but most lead to further scar formation and greater limitation in opening. The purpose of this article to describe a technique with the use of an intraoperatively fabricated self-curing acrylic bite block combined with aggressive physical therapy in the management of this difficult clinical problem.