Beautiful Smiles for a Lifetime

Welcome to Seacoast Orthodontics

Meet our Doctors

Your orthodontists for braces, invisalign® and more

Dr. Finelli

Dr. Siller

At Seacoast Orthodontics, we believe we can truly make a difference in your smile and your confidence. Our top priority is to exceed your expectations at every stage of your orthodontic treatment. We use the latest technologies—including traditional braces, Invisalign^® clear aligners, and Invisalign Teen™ —to give you the most effective and efficient care possible.

— Dr. Timothy Finelli & Dr. Jennifer Siller

Appointment Request

Taking the first step toward your care is easy. Simply complete our quick appointment request form, and our team will contact you to confirm a date and time that works best for you.

Office Hours

Monday - Thursday 9AM to 4PM

Read Reviews

We’re proud to have earned the trust of so many patients over the years. Here are just a few of the experiences shared by people who chose our team for their care.

From Lori

Seacoast Orthodontics was always available, even for last minute appointments. From the smile of staff when we arrive, to quick and easy appointments, this office offers a superior experience.

Patient Forms

Save time at your visit by completing your patient forms in advance from home.

Save Time

Simply download, print, and fill them out before your appointment.

Get Forms

The clear choice for a better smile

This advanced clear aligner system offers a comfortable, nearly invisible alternative to traditional braces, making it a popular choice for both adults and teens.

Each set of aligners is custom-designed using 3D imaging, gently guiding your teeth into place. Because Invisalign aligners can be removed at any time, you can eat what you like, keep your normal brushing and flossing routine, and enjoy fewer disruptions to your lifestyle while achieving your ideal smile.

Reviews and Testimonials

What our Patients Think

I really enjoyed the ease and speed of all my appointments and check-ins.

I felt comfortable sharing my concerns about my progress.

Kristen L.

Thank you so much for the great care you gave Heather for her braces. Thanks too for the emergency appointments for the broken brackets, wires or whatever situation arose. I appreciate how quickly we were able to get an appointment to see you. Your staff is TOP NOTCH! Time has seemed to fly by and the big day to see Heather’s beautiful smile is here. Thank you again for all your expertise!

Roxanne O.

Abby has had a great experience at Seacoast Orthodontics. The staff is always extremely friendly and accommodating and always available when any need arises. Abby is leaving with a big, beautiful smile and has recommended friends and family to your office. Thank you so much!

Julie C.

Seacoast Orthodontics was always available, even for last minute appointments, they always got my boys in. From the smile of staff when we arrive, to quick and easy appointments, this office offers a superior experience.

Lori G.