Elevate Your Confidence With a Cosmetic Dentist in Westminster, CO

You deserve to love your smile. At Keene Smiles, we help you make that happen with customized cosmetic dental care that fits your goals and lifestyle. Call 720-599-4479 to meet with a leading cosmetic dentist in Westminster, CO and begin your transformation today.

Call 720-599-4479 For An Appointment Schedule Online

Why Choose Us

When it comes to cosmetic dentistry, experience and communication make all the difference. Our friendly, knowledgeable team works closely with you to understand your concerns and create a plan that enhances your natural beauty. With modern technology, artistic precision, and a gentle approach, we make sure you feel confident—every step of the way.

Our Services

Your smile is one of your most powerful features—and enhancing it should never feel out of reach. At Keene Smiles, we offer a comprehensive range of cosmetic services that restore balance, whiteness, and symmetry while preserving your unique appearance. Every procedure is tailored to your vision, your comfort, and your timeline.
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

Discover the Power of a Beautiful Smile

Making even a small change to your smile can uplift your entire look. Whether you’re prepping for a big event or simply ready to feel more confident day-to-day, we offer effective solutions designed around you. Our cosmetic services include:
  • Teeth Whitening – Brighten your entire appearance with professional-grade whitening. We offer both in-office and take-home treatments to safely remove stains and restore a clean, youthful shine.
  • Dental Veneers – Transform your smile with ultra-thin, stain-resistant porcelain veneers. Ideal for reshaping teeth, closing gaps, or masking deep discoloration, veneers offer natural-looking results that last.
  • Tooth Bonding – Bonding is perfect for quick cosmetic fixes. In a single appointment, we can repair minor chips, correct small gaps, or smooth out uneven edges using tooth-colored resin that blends seamlessly.
  • Smile Makeovers – Combining multiple services into a single plan, our smile makeovers are designed to deliver dramatic results. Whether you need whitening, alignment, or reshaping, we’ll help you create the smile you’ve always wanted.
  • Gummy Smile Treatment – Excess gum tissue can make your teeth look shorter than they are. With gentle reshaping, we sculpt a more balanced gumline for a brighter, more confident smile.
  • Orthodontics – Straight teeth don’t require metal brackets. Our clear aligners discreetly correct crowding and misalignment, giving you a straighter smile without disrupting your routine.
Each of these services is provided with care, precision, and an eye for detail—because the best smiles are the ones that feel like they’ve always belonged to you. Reimagine your smile with Keene Smiles. Call 720-599-4479 to schedule your consultation with a cosmetic dentist in Westminster, CO and start your journey to newfound confidence. 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