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Esta entrada aún no se ha traducido a tu idioma, así que se muestra el original a continuación.
root canal
This term functions as both an anatomical description and a medical procedure. When referring to the anatomy, it describes the physical space within the tooth root. When referring to the procedure, it is used as a shorthand for "root canal therapy" or "root canal treatment."
In common parlance, the phrase often carries a negative emotional connotation associated with dental anxiety or pain, though the procedure itself is intended to alleviate pain. It is used almost exclusively in medical or dental contexts and is not typically used metaphorically.