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


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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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 ...

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The DOs and DON'Ts of Teeth Whitening

Teeth Whitening in St Paul MN, Highgrove Dental Care

If you are interested in teeth whitening in St. Paul, you have come to the right place! We create custom, take-home whitening systems for you to brighten your smile in the comfort of your own home.

We want you to get the most out of your tooth whitening here in our St. Paul office, so here are some things to do and some to avoid while you go through the teeth whitening process.

Dos for Teeth Whitening:

  • Do get your teeth cleaned before your whitening appointment – clean teeth whiten more effectively because the professional strength whitening gel can come into direct contact with your teeth.
  • Do schedule a consultation – We can ...

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Over-the-Counter vs. Professional Teeth Whitening

Teeth Whitening in St Paul MN, Highgrove Dental Care

White teeth project the image of health and youth. Unfortunately, our teeth darken naturally as we age and become stained even faster with lifestyle habits such as coffee consumption and tobacco use.

You may be wondering what is the best way to whiten your teeth? Advertisements on television make over-the-counter teeth whitening seem appealing. What they don’t tell you, however, is that the best whitening results occur under the supervision of an experienced dentist.

Over-the-Counter Teeth Whitening

Because over-the-counter teeth whitening is not customized for your teeth, the results can be unpredictable. Whitening strips are difficult to use and often slip free from your teeth, making your gums feel sensitive. Strips also ...

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Ways to Brighten Your Smile

Cosmetic Dentistry | Saint Paul Dentist

Since smiling is one of the ways we make a first impression, many of our patients want to make sure they are sending the right message with a healthy, brilliant smile! Over time, our smiles can become stained and yellow due to tobacco use, certain foods, and coffee or tea consumption. 

We offer cosmetic dentistry in St. Paul, MN to help our patients achieve a bright, white smile. If you want to keep your smile looking its best so that you feel confident, here are three ways to improve the appearance of your smile.

  1.  Avoid staining foods, beverages, and lifestyle habits. Drinking coffee, tea, red wine, and dark juices such as ...

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Store Bought Vs. Professional Teeth Whitening

Teeth Whitening in St Paul MN, Highgrove Dental Care

If you are considering whitening for your teeth, you are probably looking at all of your possible options and determining which one will be right for you. For teeth whitening in St. Paul, we recommend that you come in and speak with Dr. O’Neill about your type of staining and how best to achieve a bright, white smile.

Benefits of Professional Teeth Whitening 

Store bought teeth whitening products are some of the most affordable around. They work well for some people who have light stains, but ultimately do not achieve the dramatic results that are possible with professional teeth whitening. You may notice that you have inconsistent results, side effects, or ...

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Modern Improvements to the Teeth Whitening Industry

Teeth Whitening in St Paul MN, Highgrove Dental Care

It’s natural to want a beautiful, white smile. It can give you confidence in the way you look and help you truly express yourself. 

Tooth whitening has come a long way and the products we offer at our St. Paul dental office are no exception.

Professional Teeth Whitening

Whitening your teeth used to be a one-size-fits-all treatment. What dentists realized over time is that not every product works great for every patient. Tooth whitening products vary in strength and effectiveness. That is why it is essential to whiten your teeth under the supervision of an experienced dentist.

Dr. O’Neill will help determine the teeth whitening products that work best for you. For some ...

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