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Headshot for Dr. Jeffrey Penfil

Dr. Jeffrey Penfil

It's all about the patient. This is Dr. Jeffrey Penfil's practice philosophy. After graduating nearthe top of his class from Temple University School of Dentistry in 1987, Dr. Penfil and his family eventually settled in West Chester, PA, where he owned and practiced at Preventive Dentistry & Laser Center for twenty years.

All about the patient means that Dr. Penfil loves high fear patients, his unofficial specialty. It also means patient comfort at all times, both physically and mentally. And it means minimally invasive dentistry, including sleep apnea therapy without machines, early cancer detection and all phases of restorative and cosmetic dentistry.

Dr. Penfil has treated over one hundred sleep apnea patients successfully, including himself, and it is one of the rare things dentistry has to offer that directly saves lives. Dr. Penfil is excited to bring his skills and talents to Thornydale Dental, where that same philosophy is evident all day, every day.

Dr. Penfil has been happily married to his wife, Sue, since 1989, and his family is his joy. Their older daughter, Rachael, is pursuing her Ph.D in Peruvian Archaeology and their younger daughter, Alli, is in the military, pursuing a career in international diplomacy. He and Sue also have two four-legged children, Zoey and Eli. Dr. Penfil's hobbies include travel, SCUBA, home beer and winemaking, sports (both spectator and participant, especially the Philadelphia Eagles) and reading. But his true outside passion is volunteerism. He has been actively involved in his synagogue as a committee chair and as a director. Dr. Penfil has also been a Rotarian for 20 years, and is currently President-Elect of the Dove Mountain Rotary Club. He has been involved in projects such as building play/learning areas at a Domestic Violence Center, raising funds for a playground in Guyana, fighting polio through El Tour de Tucson, and assisting a camp for HIV+ children.

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Sarah Sibley - Dental Hygienist

Sarah has been a hygienist since 2006. Her skills and knowledge of hygiene make her an exceptional hygienist. She will help you with your dental appointments even if you have a fear of the dentists. She genuinely cares about all of her patients.

Sarah enjoys spending time with her three kids, Aspen, Dillon and Hayden. Her hobbies include finding new places to take a vacation, watching football and the UofA basketball team.

“I love what I do and look forward to meeting you and taking care of all your hygiene needs.”

Headshot for Shawn Lee

Shawn Lee - Dental Hygienist

Shawn has been with Thornydale Dental since its inception. His expertise and gentle skills as a hygienist are truly exceptional. Many of our patients credit him with giving them the ability to move beyond a lifelong fear of dental visits. He gets to know our patients personally, developing close relationships with most. Our patients love his attention to detail, gentle technique, and personal hygiene coaching.

In his free time, Shawn enjoys spending time with his daughter Alexis. His hobbies include golf, softball, snowboarding, and U of A sporting events. Shawn is a member of the American Dental Hygiene Association.

“I really enjoy what I do and look forward to coming to work every day. We have the best patients and co-workers.”

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Tammy Flynn - Dental Assistant

Tammy’s ability to put patients at ease is a skill she has mastered and perfected during her 25 plus years of dental assisting. Her clinical skills are phenomenal; she is always one step ahead and in tune with every detail of the task at hand. Her careful management of our sterilization, lab, and clinical supplies contribute greatly to the overall success of our office.

Tammy enjoys spending time with her husband, David, who is a blacksmith and artist. His work is currently on display in Oro Valley Marketplace. Tammy and David have two children, Dena and Darcy, who live in Tempe. In her free time, Tammy enjoys walking, reading, cooking, and playing horseshoes. She is a past recipient of the Pima County Humanitarian Award.

“Getting to know patients and having them become like family at our practice has been one of the most rewarding aspects of my career.”

Headshot for Elise McGee

Elise McGee

Elise is the first person you will meet as you walk in the door. She brings with her years of experience in the customer service and insurance industry. Elise is no stranger to the dental chair and she uses her past experience with dental work to help patients feel more at ease about their visit to the dentist office. She is always happy to help with insurance or treatment questions.

In her free time, Elise enjoys exploring and geocaching with her 4 kids, reading, and cooking. She also enjoys cheering on her Alma Mater, the Arizona Wildcats, with her husband.

“I spent a lot of years at home raising my children, and now that they are all in school, I am happy to have adult conversation again! My favorite part of my job is getting to know our patients and learning about what they enjoy.”