obturator
/ˈɒbtjʊreɪtər/
noun
- A device or structure used to close or block an opening, especially in surgery or dentistry.
- The dentist placed an obturator in the patient's mouth to cover the gap after surgery.
- A rubber obturator was used to seal the tube during the procedure.
- The prosthetic obturator helped the patient speak and eat more easily.