Elevate Your Oral With Your Boulder Dentist

Experience a healthier, more confident smile with expert care from your trusted dentist in Boulder, CO. Call Keene Smiles today at 720-599-4479 to schedule your appointment.

Call 720-599-4479 For An Appointment Schedule Online

Why Choose Us

We offer comprehensive dental services with personalized attention. Our team prioritizes your comfort with genuine care and empathy. You will appreciate our state-of-the-art technology and various sedation options that ensure a relaxing experience.

Our Services

We provide everything your smile needs. Beyond routine exams and cleanings, we offer solutions for dental damage repair, tooth replacement options, cosmetic enhancements, and emergency dental care when you need it most.
Smiling male doctor in blue scrubs with Keene Dental embroidered, standing in a dental office.

Meet Dr. Gregory Keene

Your Dentist in Lafayette, CO

Dr. Gregory Keene combines a gentle approach with the latest technology to ensure that his patients receive outstanding care. He takes the time to get to know each patient and their needs, empowering them to make the right decisions about their smile care.

Read More About Dr. Keene

Improve Your Life With a Healthy, Radiant Smile

Your smile has the power to transform your life. It creates positive first impressions and opens doors to new relationships and opportunities. Finding the right dental practice that provides complete care for both the health and appearance of your smile is essential for long-term wellbeing. Visit your Boulder, CO dentist for:
  • General Dental Care – Regular exams and cleanings help maintain a cavity-free mouth and healthy gums. We treat gum disease in its early stages to prevent tooth and bone loss that occur in advanced cases. We offer bad breath and dry mouth treatments, too.
  • Mouthguards – Our custom-fitted guards protect your smile during sports and prevent damage from nighttime teeth grinding.
  • Cosmetic Dentistry – Achieve a stunning smile easily with treatments such as porcelain veneers, professional teeth whitening, and dental bonding. We offer options suitable for every budget and cosmetic goal.
  • Orthodontics – Teens and adults alike appreciate our discreet orthodontic solutions for straightening misaligned teeth, including nearly invisible clear aligners that fit seamlessly into your lifestyle.
  • Restorative Treatments – From simple toothaches to severely damaged teeth, our skilled team can repair all types of dental problems with lasting, natural-looking results.
  • Teeth Replacements – Replace missing teeth with dental implants, bridges, or custom dentures. Our team guides you toward the solution that best matches your needs, preferences, and oral health situation.
  • Emergency Dental Care – We provide prompt care during dental emergencies. Our quick response ensures you receive relief from pain and appropriate treatment without unnecessary waiting.
Your comfort remains our priority during every visit. Our warm and welcoming team excels at creating a relaxing environment for even the most anxious patients. For those who need additional support to feel at ease, our gentle oral sedation options effectively calm nerves without leaving you feeling groggy afterward. We understand that dental care goes beyond technical expertise. We take time to listen to your concerns and goals because we recognize that each patient has unique needs. Our approach focuses on building lasting relationships based on trust and mutual respect. We believe in educating our patients about their oral health so they can make informed decisions about their treatment options. Call Keene Smiles at 720-599-4479 today to experience dental care from a Boulder, CO dentist who values your smile and treats you as an individual with unique needs and preferences. You can also request an appointment online.

Read Why Our Patients Love Us

For decades, I had a trusted dental office with the most amazing hygienist. Well, the dentist, I trusted and the hygienist, both retired and the rest of that clinic I used to go to doesn't cut the mustard for me. Quynh smiles feels like my new dental office. although I have only gotten a...

For decades, I had a trusted dental office with the most amazing hygienist. Well, the dentist, I trusted and the hygienist, both retired and the rest of that clinic I used to go to doesn't cut the mustard for me.

Quynh smiles feels like my new dental office. although I have only gotten a crown placed and one cleaning, I can say that the work is up to par with my current needs.

The office staff is professional, kind, courteous, knowledgeable, and responsive. Dr. Keene himself has great skill and for anyone needing a crown this is your guy. ONE STOP SHOP, he has the lab right there! For those of you who don't know what this means, it means that you leave with your permanent crown instead of the usual, 2 to 4 week wait with a temporary crown which often times falls out or has complication before the permanent crown gets sent back to your dentist.

Overall highly recommend this place.


Darcy P

Dr. Keene and his team are fantastic! I always feel like they are thorough, friendly, and cutting edge. Every cleaning and treatment I have received has left me feeling better and knowing that my teeth will stay healthy for a long, long time.

Katherine H

Absolutely amazing. Dr. Keene and his whole crew have literally saved my life. I had severe dental trauma growing up and highly neglected my teeth. Dr Keene laid out my options and helped me choose what was going to best for my health and my budget. His whole staff is truly so kind and caring. I...

Absolutely amazing. Dr. Keene and his whole crew have literally saved my life. I had severe dental trauma growing up and highly neglected my teeth. Dr Keene laid out my options and helped me choose what was going to best for my health and my budget. His whole staff is truly so kind and caring. I already have and will continue to refer anyone I know to him.


Amanda N

Keene Smiles is the Best! The staff is absolutely wonderful.
Dr. Keene and his staff are so kind. Shout out to my favorite hygienist ever,Rhonda.

Denise L

My visit was scheduled to replace a crown. Although I was very nervous about the work that would be performed, the staff made me comfortable and the procedure was as pain-free as can be under the circumstances. Dr. Keene explained every step of the process. The technology he uses to make the...

My visit was scheduled to replace a crown. Although I was very nervous about the work that would be performed, the staff made me comfortable and the procedure was as pain-free as can be under the circumstances. Dr. Keene explained every step of the process. The technology he uses to make the same day crown is simply amazing. So happy I found his practice!


Sara R

My visit was a quick and thorough tooth cleaning. I hadn't been Keene Smiles for some time because of the pandemic. I'm glad I went.
p.s—Kristin, the hygienist, was great!

Richard P

My first visit was very efficient from check-in to check-out. Every step was fully explained and I was given choices on optional treatments. Dr, Keene is very friendly and the staff was kind. I recommend him highly.

Carle C

The folks at Keene Smiles are efficient and proficient. My appointment was on time and the technician made me comfortable while she took the x-rays and did the cleaning. Dr. Keene explained the condition of my teeth in a very understandable manner.

Bob B

From the time you enter the door and Emily greets you with her great smile, you'll feel at ease and welcome. The entire staff will work to make you comfortable while they beautify your smile. The level of personal care and attention to detail are unmatched. Dr Keene is a true genius in the art...

From the time you enter the door and Emily greets you with her great smile, you'll feel at ease and welcome. The entire staff will work to make you comfortable while they beautify your smile. The level of personal care and attention to detail are unmatched. Dr Keene is a true genius in the art of cosmetic dentistry!

Thank you all for your dedication!


Amy H

This office is modern, well laid out, and clean. The employees are all very friendly and helpful. Dr. Keene is friendly, knowledgeable, and great to work with. I received same day service on a crown preparation and installation with fantastic results. I've been to many different dentists over...

This office is modern, well laid out, and clean. The employees are all very friendly and helpful. Dr. Keene is friendly, knowledgeable, and great to work with. I received same day service on a crown preparation and installation with fantastic results. I've been to many different dentists over the years from around the world. This office and their Doctor and services are the best I've experienced. Highly recommended even with an hour drive one way!


Shawn E