Using neutral zone concept in prosthodontic treatment of a patient with brain surgery: a clinical report.

The prosthodontic treatment of a patient who had undergone brain surgery to resect a brain stem astrocytoma has been described. Since the motor innervation to the oral muscles was impaired, the new neutral zone was recorded by using a tissue conditioner material. The teeth and polished surfaces of the mandibular partial denture fitted to the functional cheek anatomy of the surrounding tissue helped in the stability of the denture and to avoid the end tongue biting.