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5 Years
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Emergency
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Your Trusted Tempe Dentist for Comprehensive Dental Care
At A Great Smile Arizona, we are dedicated to helping patients achieve optimal dental health through a comprehensive range of services, including preventative, restorative, cosmetic, and emergency dentistry. Our team of skilled and compassionate professionals, led by award-winning dentist Dr. Mike Nguyen, prioritizes personalized care and patient comfort. With a commitment to staying at the forefront of dental technology and techniques, we ensure our patients receive the highest quality care.

We welcome walk-ins and offer same-day dentistry to address urgent needs, making dental care accessible and convenient. Our mission is to educate and empower patients to make informed decisions about their oral health while providing tailored treatment plans that meet their unique goals. Located in Tempe, Arizona, we serve the local community with integrity, transparency, and a focus on long-term patient relationships.
Services
Preventive Dentistry Restorative Dentistry Cosmetic Dentistry Dental Implants Dental Fillings Dental Crowns Veneers Root Canal Therapy Tooth Extractions Removable Dentures
Details
  • Year established: 2021
Highlights and features
  • We offer award-winning dental expertise with over 20 years of experience in general and cosmetic dentistry.
  • Our team provides same-day dentistry and walk-in appointments for urgent dental needs.
  • Personalized treatment plans tailored to each patient's unique oral health goals.
  • We utilize advanced dental technology and techniques for precise, effective care.
  • Compassionate care focused on patient comfort and long-term oral health.
What people say
Gentle and understanding Honest and thorough Patient and smiley staff Superior attention to detail No unnecessary services
Services
Dental Implants
Dental implants are titanium posts surgically placed into the jawbone to replace missing teeth. They restore functionality, prevent bone loss, and offer a natural look. Ideal for patients seeking a permanent solution, implants support crowns, bridges, or dentures. At A Great Smile Arizona, we ensure personalized planning and precise placement for long-lasting results.
Root Canal Therapy
Root canal therapy treats infected or damaged tooth pulp to relieve pain and save the natural tooth. The procedure involves removing infected tissue, cleaning the canal, and sealing it. Patients benefit from restored oral health and prevention of further complications. Our team uses modern techniques to ensure comfort and efficiency.
Veneers
Porcelain veneers cover the front surfaces of teeth to address stains, chips, gaps, and misshapen teeth. They offer a durable, stain-resistant solution for a confident smile. Custom-crafted for a natural appearance, veneers require minimal enamel removal and provide transformative results in just a few visits.
Dental Crowns
Dental crowns cap damaged teeth to restore strength, shape, and function. They protect weakened teeth after root canals or large fillings and enhance cosmetic appearance. Made from durable materials, crowns at A Great Smile Arizona are tailored to match natural teeth for seamless integration.
Preventive Dentistry
Preventive services include cleanings, exams, sealants, and fluoride treatments to stop dental issues before they arise. Regular visits help detect early signs of decay or gum disease, ensuring long-term oral health. Our team emphasizes patient education to promote effective at-home care routines.
People
Dr. Mike Nguyen
DDS, Award-Winning Dentist
Dr. Mike Nguyen, a graduate of New York University College of Dentistry, specializes in general and cosmetic dentistry with expertise in implants and oral surgery. Recognized as America's Best Dentist, he combines advanced training with compassionate care to deliver personalized treatment plans.
Questions
What preventive dentistry services do you offer?
We provide regular cleanings, exams, dental sealants, fluoride treatments, and patient education to maintain optimal oral health and prevent dental issues.
How often should I visit the dentist for checkups?
We recommend biannual visits for routine cleanings and exams, though some patients may require more frequent appointments based on individual needs.
Are dental implants covered by insurance?
Coverage varies by plan, but many insurers partially cover implants as a restorative procedure. Contact your provider for specific details.
What options are available for dental anxiety?
We offer sedation options and prioritize gentle, patient-centered care to ensure comfort during all procedures.
How can I achieve a whiter smile?
Professional teeth whitening, veneers, or bonding can address discoloration. We’ll recommend the best option based on your goals and dental health.
Reviews (7)
Abdullah Alrawahi
May 09, 2022 Report
I called yesterday for emergency appt and I have been told to come today morning but when I called them today they said there no space for appt today!
Betz Frederick
Feb 10, 2021 Report
Dr. Thomas is an outstanding dentist. His staff are friendly and knowledgeable. It is easy to get an appointment and I have never had to wait more than 5 minutes once I arrived. Dr. Thomas and his staff are always willing to answer questions. Procedures are explained in detail and they will even use a camera to show you what will be done. I highly recommend A Great Smile Arizona.
Olivia Ortiz
Dec 03, 2020 Report
If you're looking for a dental office that has a friendly front office, awesome dental hygienists and a knowledgable and kind Dentist look no further, this is the place. I've struggled to find a dentist that doesn't try to over-charge me for "necessary" services and I'm glad I finally found one! Dr. Thomas was knowledgeable and transparent about my dental care needs!
Katie McDonald
Jan 16, 2020 Report
I have been going to Dr. Thomas for 11 years now. He has done everything from basic cleaning to root canals, crowns, etc. He has an expert touch and is supported by an outstanding team of hygienists, dental assistants and office staff. Both Dr. Thomas and his staff are very friendly and he has a great sense of humor, which I find helpful when someone is about to put a drill in my mouth. Most of his staff have been there for years.

His office is in Tempe and I live in Anthem, but it is well worth the drive for the quality dental care Dr. Thomas and his staff provide. I highly recommend A Great Smile for anyone looking for quality dental care.
Clifford Heiney
May 29, 2019 Report
Dr. Thomas, his dental hygienists, and his staff, do a great job. They are always pleasant and on schedule with appointments. Whenever I have an urgent issue, they are accommodating and get me in right away. Dr. Thomas has been doing my dental work for years and I have always been happy with his service and his staff.
Sophia Bouey
Dec 11, 2017 Report
The staff at A Great Smile is top notch! Tammy always goes out of her way in communicating, working with and schedule/rescheduling to fit into your family's schedule. Dr. Thomas is amazing and is always so informative and present. I never feel like I'm bothering him if I have questions. He is always available and I never feel he's rushing to answer. The office is always neat, clean and very tidy. I absolutely love the huge windows in each of the offices that your chair is pointed toward. Its honestly the best dental experience I've ever had. Thank you, A Great Smile team!
Bobbi Wells
May 27, 2017 Report
I have been a patient with Dr. Elmo Thomas and Dr. David Thomas since 1979 and have always had great experiences with the entire staff. I look forward to twice a year cleanings/checkups and have never had an issue with being kept waiting to be seen. The staff is very prompt and I am always amazed at how they remember me and my family which gives me a good feeling that I am a valued patient not just a patient number.

I personally respect Dr. David for his honesty in dental evaluations and he does not recommend additional dental work unless it is absolutely necessary. He always has the best interest of the patient when he is doing an examine which is very important to me. I would highly recommend anyone looking for a great dentist try Dr. David Thomas and staff at A Great Smile, you will not be disappointed.