As a USA dentist who has treated root canal infections for many years, one of the most serious situations I encounter is the rapid spread of dental infection following a root canal procedure. While root canal treatment is highly successful and saves millions of teeth every year, there are cases where infection can progress quickly and become a medical emergency.

Patients in Glendale, California often ask:

As a practicing USA dentist, one of the most concerning situations I encounter is a patient who reports difficulty breathing along with severe dental pain, facial swelling, or a suspected root canal infection. While many dental infections begin as a simple cavity or toothache, some can spread into the deeper tissues of the face, jaw, throat, and neck. When this happens, breathing can become compromised, turning a dental problem into a potentially life-threatening medical emergency.

One of the most common reasons a root canal treatment fails is a missed canal. As a practicing USA dentist, I have seen many patients arrive at the office frustrated because they continue to experience pain, swelling, sensitivity, or infection months—or even years—after undergoing root canal treatment.