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

Open Monday through Thursday 7 am to 7 pm
for your convenience!

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

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 ...

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Root Canals... Simplified!

Root Canal in St. Paul MN

An infection can occur anywhere on the body, and unfortunately, your teeth are no exemption.

While root canal treatment sounds complex, it is actually the simple process of removing bacteria and infection from the internal canals inside your tooth. This treatment allows you to feel relief from the pain and swelling that often accompanies a root canal infection.

How Root Canal Treatment Works

Typically when a patient calls in with a dental emergency involving pain, an infection in the root canal is one of the first suspects. An infection can also result in swelling, sensitivity, and discoloration.

When you arrive at our St. Paul dental office, we will evaluate the need for a ...

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Why Do I Need a Root Canal?

Root Canal | Saint Paul Dentist

Most patients fear the words, “root canal” because there is a common misconception that your treatment will be painful. Root canal treatment is a procedure that actually reduces inflammation and eliminates pain. It may even save your tooth.

Root Canal Causes

Patients need a root canal when they suffer from an infection. Sometimes the infection occurs due to deep dental decay that breaches your tooth’s root. This can be quite painful! One way to avoid deep decay that puts your tooth at risk is by maintaining regular dental exams and professional cleanings. Dr. O’Neill strives to diagnose the most common dental conditions in their earliest stages when they are easier to ...

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