Bonbright A Thomas, DDS
Call now
Call now
Website
Call
Bonbright A Thomas, DDS
We are committed to clinical excellence, the well-being of our patients and extraordinary care! Matters to us. Our commitment to excellence and genuine interest in our patients will make your visit an unforgettable experience! Passion is a trait that aptly describes our leading Denver dentist, Dr. Leif Gambee.

Dr. Leif Gambee's passion for dentistry inspires continual expansion of his knowledge and experience with the latest technologies and procedures. And passion is what motivates our cooperative team to provide unprecedented patient care - we're proud to say we are a practice who is sincerely interested in you!
Services
We look forward to meeting you soon at Lowry Advanced Dentistry! Our commitment to clinical excellence, amazing service and warm care is our utmost priority. I was born and raised in Oregon City, then attended Gonzaga University for my undergrad in Spokane, Washington. Following my undergrad, I was fortunate enough to return home and continue my education at OHSU in their dental program.
We would be remiss if we failed to introduce you to the amazing team of professionals working at our practice in Denver. Cosmetic dentists like Dr. Gambee rely on an expert support staff to help them reach the highest standards of patient care. When a team works well together, magnificent results naturally follow.
Every so often, a field of science or medicine is revolutionized by a groundbreaking advancement. In dentistry, the advent of dental implants is just such a breakthrough. The crown jewel of prosthetic therapies, and a focus of our practice, implant dentistry has the power to change your life! Unlike bridges or dentures which merely fill in the gap left by missing teeth, a dental implant actually replaces the tooth root itself.
Our Denver family dental practice has operated at the same location on East 8th Avenue since 1955. Dr. Bonbright took over the practice from his father in 1985 and has built it into one of the most prestigious and advanced clinics in the area. Our modern, comfortable office offers a spacious waiting area soaked in beautiful, natural window light.
Upon uploading your personal picture(s), please share any thoughts or desires you have regarding your current smile. Lowry Advanced Dentistry will be in touch soon with customized recommendations and potential treatment options. We can then schedule your consultation with VideoChat or in-person at our Denver location.
Reviews (25)
Andi M.
Andi M.
Dec 17, 2021
Report
Great service; very professional; office staff are super nice, the technician is knowledgeable, offers good feedback and has a great chairside manner. The doctor is very nice, has an even better chairside manner, and is far more knowledgeable. He clearly wants my teeth to last and serve me well. The office does not upsell, though they do suggest inexpensive services ($25) to further my dental health.
Ben K.
Ben K.
Oct 26, 2021
Report
This is a great dental office with skilled staff! They are qualified, competent and courteous. What more can you ask! Dr Gambee and the hygienist staff are great!
Cg S.
Cg S.
Jul 30, 2021
Report
To be honest, I initially found this office by reviews on the former dentist who retired. I was literally in the middle of their transition. So, when I came in back in 2020, I thought I was seeing the other dentist, not having a clue he was turning over the practice to Dr. Gambee. However, Dr. Gambee did a great job and it was just a routine appt in order to see about replacing a crown. In my search for a new dentist, I was desperate for someone who better understood those who don't like drills and who could possibly do more for me than just the numbing. I had some previous bad experiences
Colin Alexander
Colin Alexander
May 02, 2021
Report
Excellent, attentive care from the ENTIRE team. I am on a mission to a healthier smile, and in between jobs so insurance isn’t an option considering waiting periods. They gave me a proper evaluation with a roadmap of things to tackle, and didn’t even hesitate when asked. I get extremely nervous at the dentists and within 10 mins of arriving I felt… relieved. I left feeling informed and in control of my health. I would recommend this practice to anyone, especially anyone feeling dreadful about going to the dentists.
Being in between jobs I also signed up for their discount plan
Eva C.
Eva C.
Apr 13, 2021
Report
I've been going to Lowry Advanced Dentistry for over 30 years! Yes, I stepped away a time or two trying to find a dentist closer to my home, but I always returned to Lowry. I x CCD ant ay enough great things about the staff there. Thank you for making my dental visits do comfortable.
Tera Holzschuh
Tera Holzschuh
Jan 19, 2021
Report
The new team has been great! They talk you through all your dental work!
Paul F.
Paul F.
Oct 21, 2020
Report
I normally don't write reviews however after the exceptional experience I felt I had with Dr.Gambee and his staff I felt compelled to let others know. I came in with two teeth that severely needed help, Dr. Gambee not only fixed the issue with zero complications but he also worked out a financial plan that fit my budget. My visit was literally the most pain free and wonderful experience! This is a dr who really cares about his patients and I am very appreciative of the care and service that I received
Susie Griess
Susie Griess
Jan 22, 2020
Report
Dr.B and his staff are friendly, knowledgeable and they take your fears and concerns seriously and actually listen! I am SO glad I decided to start going here. I have major dental issues and they have helped me find the best route for me without pressuring me into procedures I didnt need or couldn't afford or didn't feel comfortable with. I am almost done fixing my mouth and it looks amazing. I highly recommend them for all of your dental needs. 5 stars for sure!!!
Theresa Lori
Theresa Lori
Sep 16, 2019
Report
Absolutely the best dentist office I’ve ever been to. Everyone is so friendly and polite! I wouldn’t want to go anywhere else!
Dan Baylor
Dan Baylor
Jul 06, 2019
Report
Just got my first implant. Isn't old age great. Fortunately the whole process was easy and performed with perfection by Dr. Bonbright and his staff.
Willie Davis
Willie Davis
Jul 03, 2019
Report
Have been going to Lowry Dentistry for over thirty years, first the father now the son. Would not go any place else. Always a great job. Friendly and great service.
Donna Hance Mussett
Donna Hance Mussett
Apr 10, 2019
Report
The personal at Lowery Advanced Dentistry are friendly, professional, caring and skilled. They do an excellent job in caring for your teeth.
Julee Mullen
Julee Mullen
Feb 19, 2019
Report
Awesome attention to detail! - Caring staff. I look forward to my dental visits - never thought I would say that before😁
Pam L.
Pam L.
Jun 05, 2018
Report
I visited Lowry Advanced Dentistry for a second opinion. Their price & plan to fix my smile was less than half of the cost and work of my previous dentist. They are professional, listened to what I wanted and found a way to accomplish what I was asking for without major dental work. The best part is all the work should be completed in 5 weeks instead of 6 months with relatively little to no pain!
Jasmine G.
Jasmine G.
Jul 18, 2017
Report
Doctor Tom is truly the NICEST HUMAN I have ever met in my life. The receptionists are awesome, his nice daughter Christine works there as well. I was truly humbled by the kindness of the dental assistants. One visit here put me in a good mood for the rest of the week! He is very honest and will tell you if you need something or not. I am going to leave my other dentist because they actually have better prices on just about everything, even the cosmetic part.
Thanks so much for being so kind to me and helping me! You guys truly went well above and beyond what you should have, and are a blessing
Daragh M.
Daragh M.
Dec 15, 2016
Report
As an apprehensive patient, I feel very comfortable in their care!
Amazing staff across the board. Very professional and very funny!
Maria M.
Maria M.
Nov 16, 2016
Report
I love everyone there. You ladies make me feel welcomed and cared for! The take home package of foods! Excellent idea and ohh so helpful! You're all the best! Thank you!
Missy E.
Missy E.
Oct 07, 2016
Report
I love the girls a doc here. Always honest and caring. Small office with a big heart.
Cody B.
Cody B.
Feb 28, 2016
Report
Dr. Tom is wonderful. I had extremely painful mouth canker sore to the point I could not concentrate, work or sleep. I consulted 3 dentist for help 2 of which told me there is nothing I can do. Dr. Tom not only had an instant cure for me but he met me there on a Saturday before my trip to Africa to help me out. I am so thankful it would had been the worst 24 hour flight I could possibly imagine. The cure was painful but absolutely worth it. Highly recommend Tom and his team!
Petra K.
Petra K.
Aug 31, 2014
Report
A great place and even better service. As much as we all dread going to the dentist Dr. Thomas Bonbright and all his staff worked hard to make sure I was comfortable, understanding of my dental needs and all the options I had. Although they may not be the most inexpensive dental office they certainly are one of the better ones, the work they do is beyond amazing and I do recommend them to anyone wanting the best dental work around.
Joanne R.
Joanne R.
Jun 25, 2014
Report
I have been coming here for years. The staff is so attentive. I had an ultrasonic cleaning and a fluoride treatment done. Morgan, the hygienist explained everything she was doing and was very professional and efficient. She called Dr. Bonbright in for a question and quick consultation. It was an overall great experience - I would not hesitate to recommend this dental practice
Jennifer M.
Jennifer M.
Jun 17, 2014
Report
Save yourself from this mess of a business! There are plenty of great dental options in Denver, this isn't one.

In this case, do judge a book by it's cover. The receptionist, Leslee, makes a BAD first (and second) impression. She's got a sassy attitude and is, no doubt, costing this practice new business.

You've been warned! They don't care...go elsewhere.
Maggie L.
Maggie L.
Mar 26, 2014
Report
I highly suggest avoiding this office completely! This dental office is unethical and unprofessional. The insurance/billing coordinator (Leslie) dresses like she is going to a night club, and acts about as clueless as a drunk girl at a night club. I have had multiple problems with billing, included being personally billed for a tax/insurance deduction that their office participates in- in order to accept certain types of insurance. I have had to call multiple times to have an "itemized" bill sent, because otherwise they just send you a bill with your amount due and zero other information
Steve D.
Steve D.
Jan 31, 2014
Report
I just had a ultrasonic gum cleaning done this week at this location. I was treated well by the entire staff. The Receptionist Leslee took care of all my insurance needs and told me what was covered and what was not. Amy did my initial exam and brought in Dr.Bonbright to check everything out. Morgan the Dental Hygienist was awesome with the shots and the cleaning. This office also deals with sleep apnea which I have issues with and was able to send me home with a device to monitor my sleep. My experience here was great and the prices fair. I was treated for my issues and not over charged or sold
Rob M.
Rob M.
Sep 26, 2013
Report
Do yourself a favor and get a second opinion before you commit to spending money here.

After consulting with another dentist, I found out that Lowry Advanced Dentistry subjected both my wife and I to unnecessary 4-hour deep cleaning sessions to the tune of nearly $1200 each, which was even more painful given we don't have dental coverage. Come to find out, it's generally not standard practice to do such an invasive cleaning all at once, or even at all for patients who don't have advanced periodontal disease (neither of us do).

Moreover, I had TMJ symptoms for nearly three weeks