Appletree Dental is located in Thornton, Colorado and offers all general, cosmetic and implant dentistry services. Comprehensive dental care is provided to all and patient comfort comes first.
- Now welcoming new patients!
- Options for patients without insurance.
- Hablamos Español, ¡Ahora Aceptando Neuvos Pacientes!
- Mówimy po polsku – proszę pytać o Magdę
- Deaf, hard of hearing, and use American Sign Language- Ask for Hannah
The trust our patients give us is a gift we appreciate and value. We strive daily to earn and keep that trust. We faithfully provide exceptional care and respect to all of our patients. Appletree Dental’s goal is to make each visit to our office a pleasant, comfortable, and comprehensive experience.
Our doctors and hygienists recommend visiting every six months for preventative care. For our patients with specialized treatment requirements, we often recommend a more frequent visit for preventative care. You can expect great communication with your doctor and hygienist – we will discuss all options available for treatment as well as discuss a written treatment plan that you can take home with you. We do our best to ensure you have as much information as possible about your insurance policy that your employer chose for you.
Dr. Erica A. Derby, D.D.S.
A critical thinker, Dr. Erica Derby prides herself in spending time with each of her patients, thoroughly explaining upcoming procedures and recommendations while making sure to answer and explain any dental questions they have.
Says Dr. Derby, “I strive to give my patients a quick, easy, and comfortable experience. I want to finish treating them before they even know I’ve started!”
Dr. Derby is a true Colorado native. She was born and raised in Sterling, CO, and she stayed in the state for dental school, attending the University of Colorado School of Dental Medicine. After graduating from dental school, Dr. Derby spent a year as a General Dental Resident at the University of Colorado Health Science Center. It was here that she was able to get extensive training in all the areas of General Dentistry, which included pediatrics, prosthodontics, oncology, emergency care and more. Additionally, she currently is a member of the American Dental Association (ADA), the Colorado Dental Association (CDA), and the Metro Denver Dental Society (MDDS). She also was elected by her peers for the honor of being a Pierre Fauchard Fellow for her contributions to the art and science of the dental field.
Dr. Derby married her college sweetheart, and they have two beautiful daughters. Outside of work, she takes pleasure in skiing, golfing, mountain biking, cooking and reading.
Dr. Chelsea Twohig – Periodontist
Dr. Twohig was born and raised in small-town Wisconsin. She attended the University of Wisconsin-Madison, graduating with a Bachelor of Science in Biology and Spanish. Rather than immediately entering dental school, Dr. Twohig pursued her passion for Spanish language and culture, spending two years in northern Spain as an English language assistant in high school classrooms. It was during those two years that Dr. Twohig began to play ultimate Frisbee, which has become the pastime that dominates her free time to this day.
Although Dr. Twohig fell in love with Spain, she felt it time to return to the US and begin the next phase of her academic and professional life, and so she enrolled in the University of Iowa College of Dentistry. Prior to her periodontal residency program, in the interest of developing her ability to practice dentistry in Spanish, Dr. Twohig completed a two year advanced education in general dentistry residency at the University of Puerto Rico School of Dental Medicine. She then completed her periodontal residency at Oregon Health and Science University. Dr. Twohig enjoys all aspects of her work, but specifically enjoys forming relationships with her patients and colleagues.
She and her husband, Derek, recently moved to Colorado as Derek accepted a position at the University of Northern Colorado. Together they enjoy traveling, snowboarding, and ultimate Frisbee.
Nicole – Hygienist
Nicole is a Colorado native. She graduated from CCD’s dental hygiene program and also has a degree in Psychology from CU. As a hygienist she enjoys getting to know her patients and passionate about providing the best standard of care by educating them on their personal dental needs. She believes each patients needs are different and unique to maintaining good dental health. Outside the office she enjoys spending time with her husband, family, and dogs. She enjoys the Colorado adventures of being outdoors in the summer, and snowboarding in the winters.
Alisha – Hygienist
Alisha has been providing care as a dental hygienist at Appletree since 2007. Her goal with each patient is to educate, motivate and to promote optimum oral health. She is a busy mom of three and enjoys spending time outdoors camping, riding ATVs and gardening.
Hannah – Hygienist
Hannah is a 2005 Graduate from University of Colorado Health Science Center with bachelors in dental hygiene. She’s been with Appletree since 2007 and absolutely LOVES this office. Hannah is a native of Colorado and literally grew up down the street! As a hygienist, she thoroughly enjoys getting to know my patients and strive to make everyone feel comfortable and cared for. Her motto is: Do unto others as you would have them do unto you! She use American Sign Language and can interpret for our deaf patients. When Hannah’s not in the office you can find her in her kitchen whipping up tasty meals for her husband and 3 kids.
Kelli – Hygienist
Lisa – Hygienist
Rachel – Hygienist
Dr. Carrie W. Mauterer, D.D.S.
A self proclaimed “enamel hugger”, Dr. Carrie is honored to help her patients attain a high level of health, beauty and well-being. She states, “My goal for all of my patients is to help them understand all of their options. I talk with every one of my patients about their health, their needs, their busy lives and their financial concerns and we find solutions together that suit each individual patient”.
If you hear singing, it is no doubt Dr. Carrie serenading the children who grace her chair. It not only calms our kiddos but in many cases you will hear the children humming along as they are coached through their appointments. Her repertoire ranges from Sesame Street songs to Star Wars’s Imperial March depending on the song requests of her patient.
Born in Evanston, Illinois, Dr. Carrie lived North of Chicago throughout her youth.
During her studies at the University of Colorado School of Dental Medicine, Dr. Mauterer was heavily involved in many leadership positions including class president for two years and president of her school’s American Student Dental Association chapter.
Dr. Carrie is a prominent figure in the Colorado dental community and is an advocate for building a strong healthcare community. She was honored to be awarded fellowships in both the Pierre Fauchard Society and the International College of Dentists. For four years she served the local Metropolitan Denver Dental Society (MDDS) board. While serving as the editor of the Articulator Magazine, she published dozens of her editorials and won two awards from the International College of Dentists for her editorial work . She has served the American Dental Association in the positions of Alternate Delegate and Delegate (elected by her peers) for a few years now. She currently chairs the MDDS outreach committee, she is a trainer for The Cavity Free at 3 Program, and is a member of the American Dental Association (ADA), the Colorado Dental Association (CDA), and the Metro Denver Dental Society (MDDS). She was awarded MDDS Volunteer of the Year award in 2013 and the MDDS Chair of the Year award in 2017.
Dr. Carrie is married to her husband Jason who is a custom woodworker. They are the proud parents of five boys as well as proud chicken tenders of 8 hens. There are also 3 bunny rabbits and one cat mixed into their home life cacophony. In her free time (what’s that?!?) she enjoys reading, gardening, and being outdoors with her family.
Dr. Deepa Vyas
Dr. Deepa Vyas, or as she prefers to be called Dr. Deepa, is originally from Texas, but her family and husband’s career brought her to Colorado. She graduated from the University of Texas with a B.S. in Biochemistry. She then served in the national service program AmeriCorps, which is where she met her husband Brandon. When her national service ended, she moved to the east coast and attended the prestigious Boston University School of Dental Medicine.
After graduating valedictorian of her class, she was immediately admitted to an orthodontic residency at West Virginia University where she received a Master’s in Orthodontics.
Dr. Deepa enjoys working with patients of all ages and is well versed in treating patients with interdisciplinary, orthognathic, phase I, phase II, as well as limited and adult treatment needs.
Dr. Deepa is Board Certified and a member of the American Association of Orthodontists and the American Dental Association. Her research has been published in the Journal of Clinical Orthodontics.
She has completed research on the effects of obstructive sleep apnea and she continues to consider the effects of this syndrome when making the best treatment decision for her patients.
Dr. Deepa and her husband enjoy spending time with their girls, Karina and Emmy and their two rescue beagles Teddy and Franklin. She also enjoys hiking, biking, cooking, and traveling with her family.
Magda – EDDA
Veronica – EDDA
Rhonda – Hygienist
Lindsay – Hygienist
Genisee – Dental Assistant
Verenice – Patient Coordinator