(847) 469-3006

Endodontic Care

in Barrington, IL
Schedule a Consultation

Our Endodontist

Meet Dr. Gallagher

Endodontic Services

Protect Your Smile

Root Canal Therapy

Keep Your Smile Healthy

Meet Our Endodontist

William Gallagher, DDS, MS


My name is Dr. William Gallagher and I am thrilled to be your new endodontist. I grew up in Okemos, Michigan, and am excited to start working in the Barrington area. For the past 12 years, I have been serving in the United States Navy where I have traveled around the world practicing dentistry and learning leadership.

I attended Albion College in Albion, Michigan for my undergraduate degree and finished with a Bachelor’s Degree in Fine Arts with a double-major in Economics & Management and Music Performance. I then completed dental school at the University of Michigan School of Dentistry in Ann Arbor, Michigan, before entering into military service as a full-time Naval Officer and General Dentist. I completed residency training in endodontics at the Naval Postgraduate Dental School in Bethesda, Maryland, where I became proficient in root canal therapies, including re-treatments and endodontic surgeries.

Outside of the office, I enjoy spending time with my wife, Michelle, and beautiful new daughter, Vivian. My hobbies include golf, scuba diving, hiking, motorcycle riding, and hanging out at my family’s cabin in northern Michigan.

I feel very fortunate to join the team here and carry on the proud tradition that they worked so hard to develop.

Endodontic Services

Dr. Gallagher offers a number of endodontic services at Magnolia Family Dentistry. Please see the list below and contact us for your endodontic consultation today.

  • Intraoral Periapical X-Rays
  • Pulp Vitality Tests
  • Pulpal Debridement
  • Endodontic Therapy
  • Treatment of Root Canal Obstruction
  • Root Canal Therapy
  • Root Canal Retreatment
  • Apicoectomy
  • Retrograde Filling
  • Root Amputation
  • Intra-Coronal Splints
  • Abscess Incision & Draining
  • Post Removal
  • Protective Restorations

Insurances Accepted

  • Creighton
  • Cigna

What is Root Canal Therapy in Barrington?

Hearing the term root canal often conjures up feelings of dread. Perhaps you’ve heard that root canal therapy is extremely invasive and painful. However, root canal therapy is much like any other dental procedure and serves the purpose of preserving your teeth and preventing issues from worsening.

Symptoms That Root Canal Therapy Is Needed

Root canal therapy may be necessary if you experience any of the following:
• Excessive, deep tooth decay
• Abscess or infection around the gumline
• Tooth injury
• Temperature sensitivity
• Swelling or tenderness
• Severe toothache

Such symptoms require a prompt dental assessment to prevent further problems and possible tooth loss.

What Is Root Canal Therapy?

Root canal therapy is when the interior of a tooth is treated. Inside of each tooth is a pulp chamber that lies beneath the hard-layered middle section of the tooth referred to as the dentin. The pulp chamber (or root canal) houses connective tissue, blood vessels, cells, and nerves are crucial to teeth development.

Sometimes, deep cavities or tooth fractures will compromise the pulp chamber which causes the pulp to become sensitive, inflamed, and will even lead to infection. If not properly addressed, the infection can spread to other teeth, bone, and surrounding nerve tissue. When the pulp is compromised, it cannot be repaired with a routine brushing or flossing, and a standard dental filling will not correct the issue either. Unlike other areas of the body that swell because of injury, the pulp is constricted by the hard tooth enclosure. Therefore, when inflammation and infection occur, it must spread somewhere else, which puts other teeth at risk.

To prevent this from happening, root canal therapy is done which consists of completely emptying the pulp chamber of all tissue, and nerves from the fractured or decayed tooth, removing the infection and filling in space with a soft rubber-like filling material. This filling will seal the canal of the tooth completely to prevent contamination.

Once the nerves and tissues are removed, the tooth is dead. You will no longer experience pain and the exterior of the tooth is still intact. However, a dead tooth is extremely fragile because, with all interior living substance, it receives no nourishment. To prevent breakage or chipping the tooth is preserved with a filling or crown for protection.

If you are experiencing tooth pain and think you may need root canal therapy in Barrington, we recommend scheduling an appointment with our endodontist for a consultation.

Schedule an Endodontic Consultation Today!

Please have your referring dentist fill out this form and email it to office@magnoliaofbarrington.com before your appointment.

Barrington, IL Family and Cosmetic Dental Office. Call our friendly staff today.

Office Hours

Monday 8:00 am - 5:00 pm
Tuesday 8:00 am – 4:00 pm
Wednesday 10:00 am – 7:00 pm
Thursday 9:00 am – 5:00 pm
Friday 8:00 am – 2:00 pm
Saturday 8:00 am – 1:00 pm *
Sunday Closed
*1 Per Month

Office Hours

Monday 8:00 am – 5:00 pm
Tuesday 8:00 am – 4:00 pm
Wednesday 10:00 am – 7:00 pm
Thursday 9:00 am – 5:00 pm
Friday 8:00 am – 2:00 pm
Saturday 8:00 am – 1:00 pm *
Sunday Closed
*1 Per Month