A prosthesis used to close or cover a defect in the palate and restore the occlusion. The defect may be consequent upon the removal of a tumour or be congenital, as in a cleft palate. An obturator is usually made of resin or a rubberized material and may be hollow to reduce the weight.
Walter J. Obturators for acquired palatal defects. Dent Update 2005;32(5):277–80, 283–4.