otturare

Otturare is an Italian transitive verb meaning to block, seal, or close off an opening or passage, and to fill a cavity or hole to prevent passage or leakage. The term derives from Latin obturare, from ob- “against, toward” and the root meaning to close. In general use it covers actions that occlude or plug something, such as otturare a canal or duct, otturare una perdita, or otturare un foro. It is employed across technical, mechanical, and everyday contexts, including plumbing, construction, and engineering, where sealing or closing gaps is required.

In dentistry, otturare refers specifically to filling or sealing a cavity or root canal. The act may involve removing decayed tissue, cleaning the preparation, and placing filling material to restore function and prevent bacterial ingress. The result is called l’otturazione. Materials commonly used include composite resins, amalgam, and glass ionomer cements for cavities. For root canals, a sealing material such as gutta-percha is introduced and the space is sealed with a final filling or sealer, with the goal of preventing reinfection and ensuring a durable seal.

Usage notes include the distinction between general sealing actions and dental ot turation, which is a specialized medical procedure. Synonyms in Italian include chiudere, ostruire, and sigillare in appropriate contexts, though otturare emphasizes plugging or filling a gap rather than merely closing it. The term is widely understood in technical and professional registers beyond dentistry.