Highgrove Dental Care
A Great Dentist
  • Dental Office St. Paul MN

Please review our new patient safety

Welcome to Our Practice

We feature pain-free and sedation dentistry to make your patient experience comfortable and relaxed. Even if you have had difficulty getting and staying numb or you have some catching up to do when it comes to your dentistry, we can help you achieve and maintain excellent oral health. We look forward to welcoming your entire family to our Saint Paul, MN dental office.

Dr. O'Neill

With over thirty years of experience, Dr. O'Neill offers high-quality, reliable results to our patients seeking general, cosmetic, and emergency dentistry. Our entire team is committed to providing you with an outstanding experience consistently.


"Dr. O'Neill is a perfectionist! He knows the latest techniques and has the most updated equipment. He is very thorough in his assessments and is knowledgeable. I highly recommend him. Great, friendly staff. Very professional." - Mary Dunnavan

Have a Dead Tooth? Here's What That Means

September 21, 2017
Posted By: Dr. Terry O'Neill
st paul dentist

“Dead tooth” is a term that might strike fear in your mind and it can be a pretty serious situation. Fortunately, a dead tooth does not necessarily mean you will need an extraction. Today, we have many more options to save a diseased or dead tooth.

A dead tooth is a tooth in which the nerve is dead or dying. The nerve gives your tooth life and in the process of infection can make it feel quite painful. In some cases, the nerve may die without the signature pain of an infection. Infection causes inflammation, which creates pressure; this is what causes pain, especially when near the tender nerve from a tooth.

Treating Tooth Decay

Fortunately, we offer root canals in our St. Paul dentist office to save a dying tooth. Dr. Terry O’Neill takes patient comfort seriously, using an advanced form of anesthetic that works better for most people. Not only does the anesthetic take the differences of patients’ chemistry into account, but Dr. O'Neill also uses a prescription-strength topical anesthetic before any injections. Most patients report little or no discomfort. Pain-free dentistry is possible!

A root canal removes the painful nerve from the tooth. We can still leave the tooth in place, which is great because replacing a missing tooth is always more complex and expensive than simply saving the ones you have.

Here are the benefits of root canal therapy:

  • Avoid an extraction
  • Add years to the life of your tooth
  • Prevent bone loss
  • Avoid the need for a dental implant or bridge
  • Feel better beginning immediately after treatment

Once you have root canal treatment, you might still experience some minor sensitivity that lasts a few days. 

Since your tooth has no nerve or blood supply, it can become quite brittle. We often suggest a dental crown to protect it. Following through with all aspects of treatment can add years, even decades, to the life of your tooth.

For a St. Paul dentist who specializes in pain-free dentistry, give Highgrove Dental Care a call.

If you have difficulty using our website, please email us or call us at (651) 698-3828
View the ADA Accessibility Statement
Our office is now open. We are committed to following OSHA, CDC, and ADA guidelines in the midst of the COVID-19 pandemic to maintain a safe clinic for patients and staff. Click here to see more info.