Meet The Doctors
Dr. Thomas E. Bell D.M.D - Owner
Dr. Bell was born in Frankfort, Germany on the US Army base where both of his parents were in the Army. He went to the University of Kentucky for his undergraduate and continued on to the University of Louisville for Dental school in which he graduated in 2005. Dr. Bell and his family have lived in Tucson, Arizona since 2015. His wife Julie is an Anesthesiologist and they have 2 children, Johnathan and Christina. Outside of the office, he enjoys spending time with his family, working with his children’s sporting events, playing with his three Great Danes and enjoys traveling with his family.
Dr. Bell is a member of ADA (American Dental Association) and a proud sponsor of Tucson Purple Heart Program.
Dr. Dan Hornsby D.D.S
Dr. Hornsby is a native of Wyoming, Is an alumnus of Creighton University School of Dentistry (1989). His expertise includes Implant, Restorations, Bridges, Crowns, Veneers, Dentures/Partials, Endodontics, Extractions, Bonded Fillings, and Laser therapy. Dr. Hornsby is committed to providing patients with the best dentistry available today using state of the art equipment. He ensures a comfortable environment and personalized care to achieve excellent function, value, and appearances for your smile. Dr. Hornsby gives back to the Tucson community through generous charitable donations and active participation. Dr. Hornsby loves to play golf when he is not caring for patients.
Dr. Paul V. Spaeth D.D.S
- American Dental Association
- Arizona State Dental Association
- Council on Continuing Education
- State Meeting Planning Committee
- Southern Arizona Dental Association
- Peer Review Committee
- Southern Arizona Dental Study Club, past President
- Lions Club (Leones de los Montanes), past President
- Young Arizonans Charting a Healthier Tomorrow (YACHT), past President
- Volunteering since 1980 at St. Elizabeths’ of Hungary Dental Clinic
- Donated Dental Services
Dr. Roger Biede D.D.S
Dr. Biede is a native of Chicago, He moved to Tucson in 1972 with the Air Force/Davis Monthan. He has been practicing for over 40 years. He graduated from the University of Illinois. Dr. Biede is an active board member at the Square and Compass Clinic at T.M.C. and the Children’s Clinic at T.M.C. He joined the Shriners and continues in the Clown unit and Motorcycle unit at the Sabbar Shrine. Dr. Biede practices a full scope of general and cosmetic dentistry ranging from the restoration of Implants, Crowns, Bridges, Dentures and Partials, and can correct a wide variety of so called permanent cosmetic dental problems. Dr. Biede can literally redesign your smile. His hobbies include water skiing, woodworking, motorcycling, bicycling, and working on antique cars.
Meet The Hygienists
I have been a practicing dental hygienist in Tucson, Arizona since 1995. After attending Arizona State University, I received my Associates of Applied Sciences degree in Dental Hygiene from Pima Community College. The field of dental hygiene is rapidly evolving. To keep current and continue advancing my clinical skills, I attend numerous continuing education courses in all fields of dentistry as well as read professional publications. I am also a member of the Arizona Dental Association. Most recently, I have become State Certified in Soft Tissue Laser Therapy. Since 1996, I had worked in the same dental practice. For the past 20 years I have worked in the same dental practice. As of January 2017, I transitioned to Dr. Bell’s practice. Here, I have been afforded the opportunity to treat our patients with the tools and technology of dental hygiene above the standard of care. I am pleased to continue working with all my long-term patients and look forward to establishing new ones. I enjoy treating and maintaining my patient’s periodontal health and smiles at this practice. I am married and have two amazing children. My wife is a practicing dental hygienist as well. Outside of work, I enjoy family, exercise, sports (especially U o A), and numerous outdoor activities.
I am a Tucson native and a Mother of 2. I have been in dentistry since 2002 and still love it! I am blessed to be able to help and educate people everyday. I love what I do. Wife of an Air Force guy, we love the outdoors. My family and I enjoy camping, lake trips and fun weekends in the sand dunes. We also have 2 fur babies, Gabby and Kane.
My name is Donna Howard. I grew up in Oracle, AZ. I have this passion to help and educate people. I received three degrees in search of figuring out what I wanted to do for a living. I found Dental Hygiene to be the best way for me to take care of people for the past 17 years. When I’m not working, I enjoy hiking our Arizona trails with my son, spending time in our cabin in the White Mountains with my dog and best man, and reading books.
I grew up in Pottstown, Pennsylvania and joined the United States Air Force with high aspirations of becoming a dental hygienist. My experience with the USAF was truly a rewarding experience of service and of discipline as a radar technician. But I still dreamed of becoming a dental hygienist. After an honorable discharge, I used my GI Bill towards my degree at Northern Arizona University graduating in 1991 with my bachelors in dental hygiene. I have been passionate about patient care ever since. I am happy to add that I am Laser certified. I have been an enthusiastic member of our national state and local societies since I graduated and I have volunteered many years of service as both a delegate and trustee to these societies.
My name is Kaya. I am a native Arizonan and grew up right here in Northwest Tucson. I graduated from the University of Arizona with a Bachelor’s degree in merchandising. I decided to go back to school for dental hygiene and graduated from Pima Community College as a Registered Dental Hygienist in 1997. I began working with Dr. Dan Hornsby in January of 1998. While the majority of my experience has been in general and cosmetic dentistry, I have also worked in a periodontal practice specializing in the treatment of gum disease and implant care. I truly enjoy my coworkers and my patients, and am proud to help them achieve optimal oral health and a great smile. I have been married to my husband, Matthew, for over 20 years. He is an officer with the Tucson Police Department canine unit. We have two amazing boys, Nathan and Kellan, who are my absolute pride and joy. I love traveling, especially to explore our National parks. I enjoy camping, hiking, photography, Bible study and spending time with my family.
Meet The Front Desk Administrators
Emily began working in dentistry in 2004 when she was trained as an assistant in a cosmetic dental office. She switched to the front office after moving from Illinois to Arizona in 2009, where she also began her studies towards her degree in Healthcare Business Management. When not in the office, she enjoys spending time with her family and at church. Her passions are painting, reading, writing, history and computer science. Devotedly a student for life, she jokes that if she could, she would learn it all.
Martha was born and raised in Tucson, Arizona. She has been married since 1985. Her husband is retired from the USAF after serving 20 yrs. They are very proud of their three grown children. Her passion outside of work is spending time with her family and friends. She and her husband love to travel whenever they get the opportunity. Martha loves music, dancing, and kickboxing. Martha has been in the dental field since 2005 and really enjoys talking with and helping the patients.
Aris is a compassionate and caring former Finance Director/Banker and one of the friendly faces at the front desk. She is dedicated to finding ways to help people smile and that includes building confidence to share their smile! She is happy to answer your questions, plan for appointments, help resolve concerns, and make your visits positive. It is important to her that each of you enjoy a feeling of ease and confidence in our office. Her positive energy is felt by everyone, and she truly appreciates the tentative care our doctors and team strive to provide, as individuals and collectively, to each patient. When she is not glued to a computer screen or assisting patients, she spends time working in her garden, cooking, enjoying the outdoors, and spending as much time as possible with her adorable Granddaughters.
Staci was born and raised in Columbus, Ohio (GO BUCKEYES!) and moved to Tucson in 1995. She is a Mom to 4 wonderful kids. She has been in the dental field since 2000 and before that she worked in the medical/insurance field. She loves working with and getting to know her patients. When she is not working, you can find her spending time with her kids.
Hello, my name is Nadia. I’ve worked in the dental field since 1999. I started my career as a dental assistant, evolved into office management and now I’m part of the administrative team here at Dental Excellence. I’m one of the newer faces at Dental Excellence, starting in August of 2019. I’m here to help our patients have the best experience possible taking the time to listen, answer any questions or concerns that they may have, providing great customer service and patient care. I love working with this group of amazing people. It’s a proud feeling to be a part of a team that strives to be a place where the genuine care and comfort of our patients is our highest priority.
On my off time I enjoy spending time with my family and friends, traveling, cooking, wine tasting and cheering on my favorite little football player.
New Office Manager
Bio Coming soon…
My name is Lorena but most people know me as “Rena”. I started my dental career as a dental assistant for Dr. Satish Hiremath in the year 2000. In 2018, my role changed to Vice President of Operations for Bell Dental Arts where I am managing the day to day operations of Dr. Thomas Bell’s dental offices. I am the mother of two children and have a wonderful husband who supports me in everything I do. I also own my own Website Design Business. I am blessed to be part of such a great team of exceptional doctors and staff. They are all like family.
Meet The Assistants
Letty heartily believes your smile is priceless. She has been assisting for Dr. Hornsby since 1991. Time flies when you are passionate about your profession and truly desire the best outcomes for all of your patients. A Tucson native, she’s a Sunnyside and Pima Medical Institute graduate. Impressed by “The Innovation and Technologies we are leveraging these days.” Adding, “We have come so far in providing beautiful and bonded fillings,enduring smiles for all.” Away from the office, Letty enjoys time with her husband Ed, and her dogs Bailey and Ranger here in the Oro Valley parks. She is also a big fan of collegiate level sports.
Hello, my name is Anahi, I am an Expanded Function Dental Assistant. I obtained my Dental Assistant Certification at Pima Community College over 10 years ago, and more recently I earned my Expanded Function Certification through Rio Salado Community College. I strive to provide exceptional quality of care and communication to all of our patients in order to build trust, and have our patients feel at ease every time they come in for their dental visits. Outside of work I enjoy baking and cooking with my fiancé, and going on adventures with our incredibly spoiled Siberian husky Rhaegar.
I have been in the beautiful Tucson community for over 33 years. I obtained my dental assistant certification from Pima Medical Institute along with an Associate’s Degree from Pima Community College. I have been a dental assistant for over 20 years. I absolutely enjoy my profession. When I am not working, I spend my free time in the gym working out. I have one daughter who keeps me busy with softball and marching band. I enjoy spending time with my family and friends.
Bio Coming Soon…
Ally was born in New Jersey and raised here in Tucson, Arizona. She is a mother of one boy and enjoys sightseeing, nature and crafts. She graduated from Pima Community College in 2020. She fell in love with Dentistry while in school and quickly realized she had a passion for bringing people joy through their smile. She looks forward to assisting Dr. Hornsby while getting to know all of you.