Enjoy a Healthier Smile by Visiting Your Northglenn Dentist

Boost your confidence with a beautiful smile from your trusted dentist in Northglenn, 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 provide full dental services with personal care for every patient. Our team focuses on making you comfortable with genuine kindness. You will enjoy our advanced equipment and calming options that help make your visit stress-free.

Our Services

We offer complete smile care solutions. From routine cleanings to fixing broken teeth, replacing missing teeth, enhancing smile appearance, and handling dental emergencies when pain strikes, we have everything your smile needs.
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 Everyday Life With a Healthy Smile 

A bright, healthy smile can truly change how you feel about yourself and how others see you. When you smile with confidence, you create positive first impressions that can lead to new friendships and better opportunities. Finding a dental practice that cares for both your oral health and the look of your smile is key to feeling good for years to come. When you come to your Northglenn, CO dentist, we provide:
  • Complete Smile Protection: Regular visits for cleanings and check-ups shield your teeth from decay and maintain healthy gums. We spot and treat gum issues before they cause tooth loss or bone damage. Our care also includes solutions for fresh breath and relief from dry mouth.
  • Custom Protective Gear: We create perfectly fitted mouthguards that safeguard your smile during sports and prevent wear from nighttime grinding, keeping your teeth strong and intact.
  • Smile Enhancement: Get the beautiful smile you've always wanted through our range of treatments including porcelain veneers, professional whitening, and natural-looking bonding. We have beautiful smile solutions for every financial situation.
  • Smile Straightening: We offer discreet teeth alignment options that appeal to people of all ages. Our nearly invisible clear aligners fit into your life seamlessly while gradually improving your smile.
  • Smile Repair: Our skilled team fixes everything from small toothaches to major dental damage, delivering natural-looking results that last for years to come.
  • Complete Tooth Replacement: We help restore missing teeth with modern solutions including dental implants, custom bridges, or comfortable dentures that look and feel natural.
  • Emergency Dental Care: We deliver prompt attention during dental emergencies. Our quick response helps you get pain relief and proper care without unnecessary waiting.
Your comfort remains our priority throughout every visit. Our warm and friendly team excels at creating a calming environment for all patients, even those with dental anxiety. For patients who need additional support to relax, our gentle oral sedation options effectively ease worries without leaving you feeling sluggish afterward. We understand dental care goes beyond just technical expertise. We take time to listen to your concerns and goals because we recognize each person has unique needs. Our approach centers 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 choices. Call Keene Smiles at 720-599-4479 today to experience dental care from a Northglenn, CO dentist who values your smile and treats you as a person 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