Luis Keys, DDS, MDSc


Dr. Keys graduated from the Metropolitan Autonomous University. He then completed a General Practice Residency at the General Hospital in Queretaro. He then pursued a specialty training program in prosthodontics at the University of Connecticut, as well as receiving a Master’s in Dental Science degree from the University of Connecticut. Subsequently, he continued his training and completed a fellowship in dental implant research and surgery at the University of Connecticut. Additionally, he received advanced surgical training at the University of Berne, Switzerland.

Dr. Keys is an active member of the American College of Prosthodontics, the Academy of Osseointegration, the American Academy of Implant Dentistry and the American Dental Association®.

Dr. Keys has lectured and published articles on different topics of implant dentistry.

Dr. Keys has performed thousands of implant surgeries, helping his patients change their lives

E. Karina Keys, DDS


Dr. Karina Keys is originally from Lima, Peru. She received her dental degree at the Metropolitan Autonomous University in Mexico City and completed her prosthodontic residency program at the University of Connecticut Health Center, where she also completed a dental implant fellowship.

She has been in private practice since 2003, and she is a member of the American Dental Association and the American College of Prosthodontics.

Meet Our Team

Dr. Keys and Dr. Karina are proud to present our terrific dental team! Friendly and knowledgeable, our team use their experience to make sure every patient receives the care they need with service to match. We stive with our dentists to create an environment of trust and accountability so that our patients have a positive experience with us. We invite you to learn more about us and our dental care in Tucson, Arizona, by reading through our website and calling 520-825-9305 to schedule a visit to Catalina Dental.


Registered Dental Hygienist

Dennine earned her dental hygiene degree from Pima Community College in 2009. She moved to Arizona 17 years ago. She loves providing quality dental care and an enjoyable experience to each of her patients.

Dennine is married with three adult children. In her spare time, she looks forward to hiking and biking in northern Idaho.

Denise S.

Dental Assistant

Denise studied at Pima Community College and has been in dentistry for over 15 years. She has been with Catalina Dental since 2012. Even with all of her experience, she still takes time to learn more about dentistry and keeps our team and patients well-informed. She is passionate about dentistry and how it can be used to give people confidence in their smiles.


Registered Dental Hygienist

Julianna gained her associate degree in dental hygiene from Pima Community College in 2015 and has been working in dentistry for over six years. She consistently takes continuing education courses to stay up to date with current guidelines, studies, treatment options and procedures. She tries to learn something new every single day! Julianna enjoys volunteering at events such as Give Kids a Smile Day and used to volunteer training service dogs.

Her goal as a dental hygienist is to improve the health of every patient she encounters and make dentistry an easy and pain-free experience. She believes that healthcare is a partnership between a provider and the patient, and she loves listening to patients’ concerns and feedback. She is always more than happy to answer any questions.

Julianna has a beautiful, silly husky named Lily. When not at the office, she tries to spend as much time  with her family, friends and dog as she can.


Business Manager

Mary earned her Bachelor of Arts in communications at the University of Arizona in 1991. She managed her father’s dental office from 1992-2006 before coming to work with Dr. Keys. She has taken multiple courses in dental consulting with the Pride Institute and The Schuster Center, along with several software classes.  She is even a certified notary public. She always takes the time to make our patients feel comfortable coming to our office for their dental needs. She loves seeing them walk away with beautiful smiles and enjoying great oral health.

Mary loves her family, dogs and granddogs and likes to travel and enjoy new places.


Dental Assistant

Isaac is a 2010 graduate of the Pima Medical Institute and has been a part of the Catalina Dental team since 2016. He loves building rapport with our patients, helping reduce their anxiety and putting them at ease. He enjoys helping people achieve the smiles they want and seeing them get their confidence back.

Away from the office, Isaac enjoys working on cars, drawing and cycling.