• 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


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

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 MouthSometimes, 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 ...

Read More →

Keeping Your Smile Bright for Longer - 4 Tips

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 SmileTip #1 Know the Foods and Beverages that Stain TeethIt’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 turmericGreen leafy vegetables like kaleRed and white wineCoffee and TeaBerries and ...

Read More →

You Deserve Quality of Life. Implants Could Help

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

Read More →

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

A woman smiles | family 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 ...

Read More →

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.AllergiesYou 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 ChangesSometimes women going through ...

Read More →

3 Facts You Should Know about Your Dental Insurance

an image of a stamp laying on insurance papers | family dentistry st paul
If you have ever had to work through your insurance company to get coverage for a procedure you really needed, you know firsthand how frustrating it can be. Our Highgrove Dental Team is here to help navigate the often confusing world of dental insurance, so you can have the care you need to stay healthy.Here are three facts you should know about your dental insurance:Fact 1: Dental Insurance Coverage VariesDepending on your plan, dental insurance coverage varies widely from person-to-person and plan-to-plan. You might be limited in your choice of dentists, or you might get better coverage if you go to a corporate dental office. When you want family dentistry ...

Read More →

Itchy Gums: Solutions for an Annoying Problem

a picture of a woman getting her gums worked on by a dentist | top dentist st paul mn
Have you ever eaten a delicious meal and then suffered from itchy gums, an itchy tongue, or an itchy palate? No itch can be more annoying than the one in your mouth, and a back scratcher is not an option to relieve the irritation.Itchy gums are a problem for many but determining the reason why your mouth itches may require detective-style dedication.Potential Causes of Itchy GumsItchy gums often pass within a day or two without revealing the source. Here are some potential causes of an itchy mouth.Hormones – Women going through puberty or menopause may experience an increase in itchy gums. This will likely pass, but if it persists, seeking ...

Read More →