Meet Our Team

Dr. Ragnell went to Texas A&M University for his undergraduate studies before graduating from Baylor College of Dentistry in 1976. He received advanced training at Misch Implant Institute, training in anesthesia and intravenous sedation at the University of Southern California, and training in edgewise orthodontics at the United States Dental Institute. Dr. Ragnell is a member of the American Dental Association®, Total Dental Administrators, the Alpha Omega International Dental Society, the American Academy of Implant Dentistry and the International Congress of Oral Implantologists. He is also a lecturer and surgeon on live implant surgery demonstrations. Dr. Ragnell is continuously studying continuing education courses to bring his patients the latest dental care and procedures.

Dr. Richard Ragnell DDS has practiced dentistry in Plano, Texas, for over 35 years, and he strives to provide the finest quality of dental care that he can. He also focuses on the complete health of his patients while keeping them as comfortable as possible.

Dr. Ragnell has been married to his wife, Mari, since 1988. They are empty nesters and enjoy cooking, traveling and spending time with friends. They also enjoy relaxing with their dogs, Sascha and Bodie, the Standard Poodle.

In his spare time, Dr. Richard Ragnell DDS cooks like a professional chef and enjoys cooking for people. He is also a true handyman and do-it-yourselfer. He has built his own airplane, winning awards for it, and remodeled his own home. He also creates furniture in the woodshop he built.

Mari is a registered dental hygienist and business partner who has been part of the iSmile Dental Care team since 1984. After completing the Tarrant County Dental Hygiene Program, Mari joined the practice and has since been an integral part of the dental community. She is known for her exceptional skills and knowledge in the field of dentistry and her dedication to providing the best possible care to her patients. Mari is part of a supportive team, and she thrives in an environment where everyone is working together towards a common goal! She is passionate about dentistry and takes pride in contributing to the practice’s success.

In her free time, Mari enjoys spending time with her family, which includes her husband, son, daughter-in-law, two granddogs and two rescue dogs! She loves to read and is also an avid gardener. She enjoys traveling and exploring new places, and her needlework skills are impressive. Mari hopes her dedication to her profession and her hobbies comes through in her care for each patient.

Faith has been the Office Manager at iSmile since May 2024, bringing a decade of experience in the dental field. Originally from Paris, Texas, Faith began her career as a front desk receptionist and quickly advanced to managing multiple dental offices, including both corporate and private practices. She is passionate about helping patients navigate their financial options, ensuring they receive the best possible care. Faith values the close-knit, family-like environment at iSmile and enjoys working with Dr. Ragnell and his team. Outside of work, she loves spending time with her 13-year-old son, attending live music events, and comedy shows, and traveling. Her dental philosophy is: “It’s cheaper to keep your teeth than to replace them!”

With a passion for preventative care, Jessica is dedicated to providing patients with a comfortable and exceptional dental cleaning experience. Born in Richardson, Texas, and currently living in Plano, Jessica understands the demands of a busy life. As a dental hygienist, Jessica takes pride in helping patients achieve and maintain optimal oral health while ensuring they feel confident in their smiles. Jessica believes that a healthy mouth is essential for overall well-being. By focusing on preventative care, they strive to create a positive and welcoming environment where patients feel comfortable and valued. Beyond their professional duties, Jessica enjoys spending time with family and friends, staying active, and indulging in their favorite TV shows.

With a compassionate approach and a commitment to patient care, Alondra plays a vital role in the dental office. As a dental assistant, she assists the dentist with treatments, ensures a clean and sterile working environment, and provides patients with information and support to make their visits as comfortable as possible. Born in Santa Ana, California, and raised in Dallas, Texas, Alondra’s appreciation for dental health began at a young age. Inspired by her positive experiences, she pursued a career in dental assisting and graduated from Sanford-Brown College in 2015. Alondra takes pride in helping patients overcome their fears and develop a positive outlook on dental care. Outside of work, Alondra enjoys reading, spending time with loved ones, exploring new destinations, and trying different cuisines. Her passion for dental assisting and her dedication to patient comfort make her an invaluable member of the dental team.