Our Practice

About Us

Our staff here at Preston Family Dentistry are dedicated to making sure that you receive quality dental care. We love our patients and want to provide you with the best dental treatments possible. Give us a call today or stop by our office in Dallas, Texas to meet us and schedule an appointment with our dentists!

Meet the Doctors



Dr. Mehrnaz Iranmehr
Dr. Mehrnaz Iranmehr completed her undergraduate degree in Biology at the University of Texas in Dallas in 1999, and continued on to Baylor College of Dentistry, where she earned her Doctor of Dental Surgery degree in 2003. While attending dental school, she received a Dentistry Academic Scholarship, the General Dentistry Program Excellence Award, and an Outstanding Achievement in Operative Dentistry award.

Dr. Iranmehr is an active member of Plano Rotary Club. She loves teaching, and currently holds the position of Clinical Assistant Professor at Baylor College of Dentistry, where she teaches chairside practice to prospective dentists. She actively seeks to advance her knowledge of dentistry, striving to stay up-to-date on leading edge techniques and treatments through continued coursework, walk-through hands on experience, and instruction with other dentists.

Dr. Iranmehr was born in Tehran, Iran, and spent her early years in Germany prior to moving to the United States. She has been a resident of Plano, Texas for over twenty years and is the proud mother of her associate dentist. When she is not busy with dentistry and is outside the office, Dr. Iranmehr enjoys spending time with her family and traveling.

When she began her formal education, Dr. Iranmehr made a commitment to excellence which she continues to pursue to this day. She goes above and beyond the call of duty to ensure that every patient’s experience is comfortable and enjoyable. She is known by her patients for her friendliness, compassionate care, and her willingness to listen closely and provide explanations for all aspects of dental care.


Dr. Bahar Iranmehr
Dr. Bahar Iranmehr grew up in Plano, TX and completed her undergraduate degree in Human Biology with honors at the University of Texas at Austin. She attended Texas A&M Baylor College of Dentistry where she earned a Doctor of Dental Surgery (DDS) degree. She knew she wanted to follow in her mother’s footsteps to be a dentist so that she could help people find their smile again.

Dr. Bahar is passionate about patient education and preventive dentistry and takes time to listen to her patients needs in order to achieve their goals. She is dedicated to patient care and wants every patient to feel comfortable and at ease while working towards a functional and attractive smile.

In her spare time, Dr. Bahar enjoys traveling and spending time with friends, family, and her two dogs, Charlie and Bailey.

Meet the Staff


RDA Treatment Coordinator

Astrid is a key member of the PFD family and welcomes everybody with a big smile as soon as they walk through the door. She primarily helps our patients coordinate when scheduling appointments, but she is also a registered dental assistant and loves to help patients wherever she can. She enjoys the atmosphere of our family practice and all aspects of dentistry. She is compassionate and puts patients at ease to ensure a positive dental experience. She loves learning new things, going out to eat, and spending time with her boyfriend.

RDA Hygiene Coordinator

Roxana is the newest member of the PFD family but already feels like this is her second home. She is from Dallas and has been working in dentistry for a few years. She started her dental career as a registered dental assistant but as she progressed in the field, she would help the front office from time to time which allowed her to be cross trained. She loves talking to patients and seeing them walk out of treatment so happy. In her free time, she loves spending time with her pug, Bella. Her hobbies include running, shopping and trying new foods and restaurants.

RDA Dental Assistant

Nazee is one of our friendly lead assistants who has been in the dental field for almost 2 decades. Her compassion and warmth will definitely put you at ease during your procedure. She loves interacting with patients and meeting new people. Her favorite part of her job is seeing life-changing transformations and how a smile can change someone’s life. Outside of the office she is a proud mom and loves spending time with her family and “Pashmak” her poodle.

RDH Dental Hygienist

Jenny joined our dental family in 2015. She earned her degree at the University of Texas Health and Science Center in San Antonio, where she graduated in 2012. She enjoys working with her co-workers and loves being able to make a difference in a patient’s life by providing education about oral health and tools to help improve their health. She has a very gentle touch and is dedicated to perfection when providing dental cleanings. Jenny is married to her husband Lee and in her spare time she enjoys playing with her beagle named Joey, reading, traveling and is a foodie.

RDH Dental Hygienist

Lana has worked with Dr. Iranmehr since 2007 and officially joined our practice in 2021. She has worked in the dental field for many years, first as a dental assistant then graduating dental hygiene school from Collin County Community College in 2002. She loves helping patients achieve a healthy, beautiful smile. She also enjoys working with patients of all ages. She wants your visit to Preston Family Dentistry to be a great experience. In her free time, she loves spending time with her family and friends.

RDH Dental Hygienist

Patti has been in dentistry since she was 18 years old, when her childhood dentist asked her to be his dental assistant for the summer. It was instant love. She attended Tyler Jr. College, graduating at the top of her class. Later, she earned a BA from The University of Texas at Dallas. Her passion has always been to provide her patients excellent care and education, as well as making sure they are happy and comfortable in her chair. She is also an artist, working in mosaics, clay, and paints. She loves spending time with her daughter, son-in-law, and granddaughter, as well as her little parakeet Eli.