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COVID-19 Update

We are open! For those patients who have not been seen yet and do not have an appointment scheduled, please call the office at 603-434-0190 to schedule.

Once scheduled, please fill out the COVID-19 Consent form and COVID-19 Supplemental Health form 24 hours prior to your appointment. Click on the link below, fill out the form and submit. When in the parking lot please text 603-493-6201 to let us know you have arrived, and we will text back when it is safe to come in. Upon entry to our office, we will take your temperature and O2 saturation level. These procedures are for your safety, as well as the safety of our staff and other patients.

We would like to thank you for your understanding during this pandemic. We have missed you all more than we can express and can’t wait to welcome you back!

Virtual Check-Ins New Office Protocols

COVID-19 Forms
Supplemental Informed Consent
Supplemental Wellness Health Questionnaire

Welcome to
Appletree Orthodontics!

Orthodontist in Londonderry, NH

Dr. Polgrean and her highly trained staff have been creating beautiful smiles in Londonderry, Derry, Hudson, Salem, Manchester, Litchfield, Windham, Candia, Raymond, Hooksett, and surrounding areas for over 25 years. Our doctor and staff attend numerous continuing education courses throughout the year as part of our commitment to providing you with the highest quality of care.

Our dedication to providing extraordinary personal service with compassion and consideration to the unique needs of each of our patients is our top priority. We feel open communication is extremely important in creating a positive environment for our patients and insuring a successful treatment outcome.

At Apple Tree Orthodontics we utilize the latest technological advances in the profession to achieve unsurpassed results for our patients. In addition to “clear” braces, Invisalign clear aligners, and Teen Invisalign clear aligners, we offer low radiation digital radiography, and a “no impression” intra-oral scanner eliminating the need for traditional impressions. We have extensive experience in treating more complex cases which may require orthodontics in conjunction with jaw surgery. Our team works closely with several oral surgeons in the Boston area.

Here at Apple Tree Orthodontics, we recognize that each patient has unique needs, and we pride ourselves in tailoring our treatment to meet these requirements. Whether you are an adult, adolescent or child, our knowledgeable team is committed to helping you achieve the smile you deserve – a healthy, beautiful, self-confident one that will last a lifetime!"

Meet The Doctor

Helpful Information

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Your First Visit
Fear of the unknown is human nature and some nervousness is to be expected prior to starting orthodontic treatment. We strive to erase your fears and make you feel comfortable.
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Our goal is to allow you to be seen on time for your appointment, make appointments as stress free for you as possible, and to minimize interruptions to your busy schedule.
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The Right Age
Orthodontists today can successfully correct most problems regardless of the patient’s age. But that does not mean that the orthodontic treatment starting age does not matter.
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For Adults
Parents are still making regular trips to the orthodontist's office, but for themselves as the patient. We offer a variety of treatments that are designed for different age groups.
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Patient Testimonials

  • “I had an amazing experience here. Everyone was so helpful and nice, and they really made sure my teeth looked 100% perfect.”
    ─ Joshua
  • “My two teens just finished up treatment and we are very happy. They both look great. The staff is awesome, friendly and knowledgeable.”
    ─ Elizabeth
  • “Three children went through braces at Apple Tree Orthodontics. We were 100% happy with the plan, communication throughout, all medical & non-medical staff, and the caring care we received over the years, Highly recommend!”
    ─ Danyelle
  • “Great experience! Got my braces on late (junior year of high school) and they were sure to work quickly and efficiently to give me the best experience possible. Couldn’t be happier with how my smile turned out!!”
    ─ Cassidy
  • “Fantastic experience. My kids love the place and the people. Great doctors and very friendly staff.”
    ─ Anand
  • “Wonderful experience with my 14 year old son! Feedback at each appointment and walked him through the whole process. Very sweet team and fantastic service!”
    ─ Sara
  • “Always very friendly and my teeth look great. I could not be happier with my experience.”
    ─ Dylan
  • “This is the definition of a family orthodontist. Calm and soothing environment making you feel right at home in this office. Fantastic service and couldn’t be better. A+”
    ─ Billy
  • “Such a fun group of people. They are sweet and accommodating. They are almost always on time and even can take you earlier occasionally. Not like other places. The best place.”
    ─ Rosemarie
  • “Great group of people. Very nice as well. Would give six stars if I could.”
    ─ Herve