Root Canal

Root canal therapy can save your natural tooth and relieve pain. At Pearl Works Dental in Helena, MT, we provide gentle, effective root canal treatment designed to restore function and help you feel comfortable throughout care.

Understanding Root Canal Treatment

Inside each tooth is soft tissue (the pulp) containing nerves and blood vessels. When the pulp becomes inflamed or infected, it can cause severe pain and may lead to an abscess. Root canal therapy removes the infected tissue, cleans and disinfects the canals, and seals the tooth to prevent reinfection—often allowing you to keep your natural tooth.

When Is a Root Canal Necessary?

Common signs include:


  • Persistent or severe tooth pain
  • Sensitivity to hot/cold that lingers
  • Swelling or tenderness in the gums
  • Pain when biting or chewing
  • A tooth that looks darker than surrounding teeth


If you notice these symptoms, schedule an evaluation as soon as possible.

When is a Root Canal Necessary?

What to Expect During Treatment


  • Comfort-focused numbing
  • Removal of infected tissue
  • Cleaning and disinfection
  • Filling and sealing the tooth
  • Restoration planning (often a crown for strength)

A Comfortable and Caring Experience

. We understand this procedure can sound intimidating. Our team explains each step, checks in with you throughout, and keeps treatment focused on relieving pain and protecting your long-term oral health.

Frequently Asked Questions

  • Do root canals hurt?

    Most patients are surprised by how manageable it is. The goal of root canal therapy is to relieve pain from infection or inflammation, not create it. With effective numbing and modern techniques, treatment typically feels similar to getting a filling. You may have mild soreness afterward, which is usually controlled with OTC pain relievers (if appropriate for you).

  • How long does treatment take?

    Timing depends on the tooth and severity of infection. Many root canals are completed in one visit (about 60–90 minutes), while some cases require two visits—especially for molars or complex canals. After the root canal, you’ll also need the final restoration (often a crown), which may take an additional visit.

  • Will I need a crown afterward?

    Often, yes—especially for back teeth (molars/premolars) because they take heavier chewing forces and are more prone to cracking after a root canal. Front teeth may not always require a crown if there’s enough healthy tooth structure remaining. After evaluating your tooth, we’ll recommend the restoration that best protects it long-term.

  • What should I expect after a root canal?

    It’s normal to have:


        • Mild tenderness or sensitivity for a few days

        • Slight discomfort when biting until the tooth is fully restored


    You should contact the office if you experience:


        • Increasing swelling, fever, or severe pain

        • A reaction to medication

        • Pain that worsens significantly after a few days


    Following your aftercare instructions and completing the final restoration are key to a strong, comfortable outcome.

  • What happens if I delay treatment?

    Delaying treatment can allow infection to progress, which may lead to:


        • Worsening pain and swelling

        • An abscess

        • Spread of infection to surrounding tissues

        • Higher chance the tooth can’t be saved (requiring extraction)


    If you suspect an infected tooth, earlier treatment usually means a simpler, more predictable outcome.

  • How do you know if a tooth needs a root canal?

    We determine this using a combination of:


        • Your symptoms (persistent pain, lingering hot/cold sensitivity, swelling)

        • Clinical exam (tenderness, gum findings, tooth damage)

        • Diagnostic tests (tap/bite tests, cold testing)

        • X-rays to look for infection near the root or changes in bone


    Sometimes symptoms can mimic other issues (like a cracked tooth), so diagnostics are important to confirm the right treatment.