• Dentist St. Paul MN
  • Dental Office St. Paul MN
  • Experienced St. Paul MN Dentist
  • General Dentistry St. Paul MN

Make an appointment today to learn more about our
new patient specials and consultations!

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

Root Canal Treatment in St Paul MN

Root Canal Treatment St. Paul, MNNo procedure in dentistry has a worse reputation than root canal therapy. When done correctly and using our pain-free dental techniques, we can perform pain-free root canal treatment that can save your tooth and relieve your discomfort.

When Is a Root Canal Necessary?

Typically, when a patient needs root canal therapy, their first noticeable symptom includes discomfort or sensitivity. If you have a toothache, calling us immediately helps us to treat you quickly and effectively, increasing the likelihood that we can save your tooth.

Other symptoms often leading to root canal treatment include:

  • Inflammation
  • Discoloration
  • Small bump on your gums
  • Sensitivity to temperature
  • Pain with pressure

Pain-Free Root Canal St. Paul MNRoot canal treatment becomes necessary when you have an infection inside the canal within your tooth that houses your nerve. Inflammation causes pain and pressure, often displaying no external symptoms. These types of infections rarely resolve on their own, even with medication. Root canal therapy gives Dr. Terry O’Neill an opportunity to painlessly remove the infection inside your tooth, providing relief.

Failure to address this type of infection may result in tooth loss. Any type of infection affects your entire body’s wellness. We will gently treat your tooth to eliminate the infection and restore your health. 

Pain-Free Root Canal Therapy

Using our modern anesthetic techniques, we can provide root canal treatment without the associated discomfort. We have prescription strength topical treatment to numb your tissue before we anesthetize your tooth. When giving injections, we use the OnPharma onset approach that provides nearly instant numbing effects. 

Terry O’Neill, DMD, has performed more than 10,000 root canals, giving him unsurpassed experience in providing patients with relief and saving their teeth.

Despite the reputation root canals have received in the past, in Dr. O'Neill's experience, most root canals are painless for the patient with little or no discomfort after treatment. You can be out of pain today. 

We can perform most root canals in one visit to our Saint Paul, MN dental office without the need for a referral to a specialist. Having a timely root canal and the proper restoration can prolong the life of your tooth by decades, restore your health, and protect the integrity of your bite.

Saving your natural teeth is the best way to protect your oral health. We make every effort to restore your teeth whenever possible.

Are You Experiencing Tooth Pain?

Call Highgrove Dental Care right away! Our friendly and compassionate team will make relieving your pain our priority. We schedule emergency dental appointments often on the same day, so you can get back to living life comfortably.