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


The Long-Term Oral Health Consequences of a Nail-Biting Habit

A man holds his hand to his mouth | St. Paul MN cosmetic dentist

If you are considering cosmetic dentistry in Saint Paul, you might be thinking of veneers or bonding to enhance and improve the appearance of your teeth. If you bite your nails, however, you might end up damaging your new dentistry with your nail biting habit.

In addition to the cosmetic implications of biting your nails, there are plenty of other reasons to keep your fingers out of your mouth.

Transfers Bacteria to the Mouth

Your fingers and hands touch everything while you are out in the world – grocery carts, train station turnstiles, elevator buttons, other peoples’ hands, and well, let’s face it – bathroom stuff.

While you may justify your nail biting habit ...

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Could You Benefit from Veneers?

A woman smiles | dental veneers st. paul mn

Veneers might seem like a luxury for the rich and famous, but that’s not necessarily the truth. Often, dental veneers are comparable in price to dental crowns and make your front teeth look like you just came from a Hollywood party.

If you are searching for a cosmetic dentist in St. Paul and you want to discuss the possibility of veneers, we welcome your questions. It’s as easy as picking up the phone and speaking to one of our helpful team members.

Here Are Some of the People Who Benefit from Veneers

People who grind their teeth – As long as we address the underlying problem, porcelain veneers can restore the length of ...

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The 3 Most Common Dental Emergencies We Treat at Our St. Paul

a tooth in front of a first aid kit | st. paul MN emergency dentist

Let’s face it; dental emergencies are stressful. When patients experience dental emergencies in St. Paul, we are here to help guide you through the process, taking the uncertainty out of the future of your smile.

Here are the three most common dental emergencies we treat here at Highgrove Dental Care.

A Toothache or Pain in the Mouth

Sometimes, the source of a toothache is easy to identify, especially if you bite into something and suddenly – crunch – you break a tooth. Other times, pain creeps in slowly and gradually becomes more dramatic. Either way, you should give us a call right away. A toothache indicates a problem, and the faster we treat ...

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Keeping Your Smile Bright for Longer - 4 Tips

a before and after image of a teeth whitening patient | teeth whitening St. Paul

You have had a dental cleaning recently and followed it with professional teeth whitening in our Saint Paul dental office. Your teeth are probably gleaming! Keeping them that way is perhaps important to you, and our team is here to help by offering tips to keep those pearly whites brilliant.

4 Tips to Maintain a Whiter Smile

Tip #1 Know the Foods and Beverages that Stain Teeth

It’s common knowledge that tobacco use causes stains on teeth, but what about everyday foods and beverages? Here are some of the more significant culprits that produce yellow or brown stains on your teeth.

  • Curry and turmeric
  • Green leafy vegetables like kale
  • Red and white wine
  • Coffee and Tea
  • Berries and ...

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You Deserve Quality of Life. Implants Could Help

a woman smiles | dental implants St. Paul

If you have dentures, you know how important they are to improving your confidence and helping you eat more foods you enjoy. If your dentures do not fit well or regularly fall out of your mouth when you laugh or talk, they can become a significant source of stress that ruins your quality of life.

A recent study printed in the Clinical Implant Dentistry journal reveals that implant-retained dentures improve quality of life. We offer all types of dentures in our Saint Paul dental office, including implant-retained variety.

Reliable Stability

Implant-retained dentures secure dentures in place and keep them from falling or shifting when you chew food or laughing over coffee with friends. ...

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Are Your Teeth Holding You Back? Here's How We Can Help

A woman smiles | cosmetic dentist st paul

Making a great first impression is important. Perhaps most importantly, it is essential to nail that first job interview and really put your best smile forward. If you feel self-conscious about your teeth, you might find yourself holding back or even keeping your mouth shut exactly when you should be singing your own praises.

Another complication of not having a healthy smile is that you might have bad breath, which can be a real turn off and hurt your chances of a callback.

While some of the judgments that people make about the appearance of others are unfair, it’s an unfortunate fact of life.

Fortunately, your family dentist in St. Paul can create ...

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Why Are My Gums Itchy?

a woman brushes her daughter's teeth | pediatric dentist in st. paul

Itchy gums may sound like a unique problem to have, but if your gums ever feel itchy, you know how annoying it can be. You probably ask why your gums would possibly itch and what might have caused it. Here are some of the most common reasons that gums feel irritated and itchy.


You might have a food allergy or sensitivity you don’t know about. Sometimes allergies are mild and difficult to identify. Make a note of all of the foods that you eat and drinks you consume when you have itchy gums and see if you can find a common food that might be the culprit.

Hormonal Changes

Sometimes women going through ...

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