Root Canal Myths, Corrected

The reputation of root canals comes from an era before modern anesthetics, rotary instruments, and magnification. Today the appointment feels much like a large filling.

March 12, 2026 · 5 min read · Dr. Nicki Tajalli, D.D.S.

Myth: root canals are painful

The pain patients remember is the infected nerve before treatment. Once the tooth is numb and the inflamed pulp is removed, that pain stops. Most patients report the appointment itself was uneventful.

Myth: pulling the tooth is simpler

Extraction creates a new problem: the neighboring teeth drift, the opposing tooth over-erupts, and replacing the tooth with an implant or bridge costs more than saving it. Keeping your natural tooth is almost always the better value.

Myth: root canals cause illness

The focal infection claims circulating online trace back to discredited research from the 1920s. Contemporary evidence does not support them.

Key takeaways

  • Treatment ends nerve pain, it does not cause it.
  • Saving the natural tooth usually costs less over time.
  • Plan for a crown afterward on back teeth.

This article is general information, not a diagnosis. Your situation deserves an exam.