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


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 Varies

Depending 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 ...

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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 Gums

Itchy 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 ...

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Year End Dental Insurance Stratagies

A person writes on insurance papers | Dentist St. Paul MN

The end of the year is approaching and for those of you with dental insurance, this can be a good time to complete needed dental care.  Most dental insurance including Delta Dental have calendar year expiration and maximum yearly benefit.  So, any funds not used before the end of the year are lost.  Also, if you have a cafeteria plan with money set aside for medical/dental care, often those funds are lost at year end.  If either of these scenarios applies to you, call today to schedule an appointment.  That way your treatment can be completed before January 1ST.

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3 Important Functions of Baby Teeth

family dentistry in st paul

Many people think baby (primary) teeth are disposable because they will begin to fall out and be replaced by adult teeth later. This could not be further from the truth. Baby teeth are an essential part of the development of your child’s permanent smile and without a healthy start, your child can have oral health issues as teens and adults.

3 Important Functions of Baby Teeth

Here are three ways that your child’s baby teeth help them develop properly.

They Help Children Eat and Speak Properly

Baby teeth are essential to helping your little one maintain a healthy diet. Being able to eat a wide variety of foods – including crunchy fruits and veggies ...

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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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The Latest Research on the Cause of Cavities in Kids

Children's Dentistry St. Paul, MN

Most parents will agree that the sight that warms their hearts above all others is their child’s smile. Dentistry researchers are hard at work to protect the smiles of children by determining how dental caries (decay) develops and what we can do to restrict cavities. It goes beyond the presence of sugar, though sweets are certainly a factor in developing cavities. Bacteria feed on sugar, which makes the mouth environment acidic, softening enamel.

Recent Research on Childhood Caries

This study finds that both bacteria and yeast are players when it comes to caries. Yeast also feeds on sugar, so a sweet tooth can create a double-hit when it comes to a healthy ...

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Study Finds Evidence for an Association between Gum Disease and Obesity

gum disease treatment st paul

If you pay attention to the news lately, you have probably heard a number of reports about the serious systemic risks of having periodontal disease. Research links more and more conditions with chronic inflammation of the gums. 

More information is needed to determine the cause and effect relationship between periodontal disease and overall health, but one thing we know for sure is that the health of your mouth plays a significant role in overall wellness from more than just a dental standpoint.

Periodontal Disease and Obesity

A recent study finds an association between gum disease and obesity as well as a link to insulin resistance. Overall, the study determines that obese patients ...

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