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

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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


How Far Back Do Fillings Go?

Dental Fillings | St. Paul Dentist
Many patients might believe that dentistry is a relatively new science. If you look back throughout history, however, you will see that dental problems plagued humans for thousands of years. While the methods of caring for teeth have improved, many of the old concepts were on the right track.A recent discovery uncovered evidence of 13,000-year-old fillings in Italy. The dentist cleaned out the decay from two incisors and packed the cavities with hair and plant matter before filling each of the cavities with bitumen, a type of asphalt used in ancient times. By filling the cavities, the dentist achieved the goal of keeping food and bacteria out of the ...

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What Are We Looking for during Your Dental Cleaning?

Dental Cleanings St. Paul MN
Because dental cleanings give our hygienist quality time to work on your smile one tooth at a time, they can often identify changes with your oral health that may require treatment or additional attention for you to stay healthy. This is part of the reason why your regular dental exams and dental cleanings are so important.Preventing dental conditions is the best way to protect your smile. With regular appointments, we can often detect and treat any problems before they progress.Here are a few things that we look for during your dental cleanings:Gum recession – The presence of gum recession can indicate a misaligned bite or gum disease. A periodontal evaluation ...

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3 Things You Should Know about Sedation Dentistry

Oral Conscious Sedation
Having a fear of the dentist is more common than you may think. The Centers for Disease Control and Prevention estimate that up to a third of adult Americans have some level of dental anxiety.Oral conscious sedation dentistry opens the door for patients who might otherwise avoid the dentist due to anxiety or stress related to dental treatment. At Highgrove Dental Care, we offer oral conscious sedation to help patients relax and receive the dental care they need to stay healthy.Here are 3 things you should know about oral conscious sedation dentistry:#1 – You will remain conscious, but totally relaxed. Oral conscious sedation requires the use of prescription medication to ...

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Root Canals... Simplified!

Root Canal in St. Paul MN
An infection can occur anywhere within 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 WorksTypically 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 in our St. Paul dental office, we will evaluate the need for a root ...

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The Top 5 Foods That Cause Staining

Teeth Whitening Saint Paul, MN
Even if you don’t use tobacco, you might find that your teeth become stained. Brushing and flossing your teeth can help, but your smile may still darken from the foods or drinks you consume.Fortunately, teeth whitening in our St. Paul dental office can restore your smile's natural gleam.Here are some of the main culprits that can prematurely stain your teeth, especially when consumed regularly.Coffee – Many people’s favorite way to say hello to the day can darken your teeth, especially if you enjoy French press coffee or espresso. While filtered coffee can reduce the staining effect, it does not stop it altogether. Coffee causes brown stains that penetrate the microscopic ...

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3 Steps We Take to Make Your Root Canal Comfortable

Comfortable Root Canals St. Paul MN
We have seen it a hundred times. We let a patient know they need a root canal, and a look of dread spreads across their face.Root canals are among the most feared dental procedures, but unfairly so! You will be happy to know that we provide comfortable root canal treatment here in our St. Paul dental office, eliminating the dread and worry that accompanies your appointment.Here are three steps we take to ensure comfortable root canal therapy:1. Dr. O’Neill Uses an Innovative Anesthetic TechniqueSome patients have a greater difficulty getting numb than others. Dr. O’Neill recognizes this and implemented onset buffered anesthetic techniques for use in our practice. If you ...

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What Happens in Your Mouth When You Skip a Dental Cleaning?

Dental Cleanings St. Paul MN
Because of time, expense, and a fear of the dentist, sometimes patients are tempted to skip a dental cleaning or two. We would like to share a few reasons why skipping dental cleanings is not a good idea and can put your health at risk.Bacteria and InfectionBacteria begin to form within minutes after eating. Sure, you can brush and floss your teeth, but do you do this after every meal or beverage? If the answer is yes, great work! Unfortunately, however, your efforts may still not be 100 percent effective. Your toothbrush and floss cannot reach every area of your teeth and gums. It is a good method to combat ...

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