Seacoast Orthodontics
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At Seacoast Orthodontics, we can make a difference! Our office's #1 priority is to exceed your expectations during your orthodontic treatment. We utilize the newest technologies, including traditional braces, Invisalign "invisible" braces, Invisalign Teen, Incognito, children's braces and more. Advancements in orthodontics can mean shorter treatment time for you!

Your orthodontists, Drs. Timothy Finelli and Jennifer Siller, will also develop an individualized treatment plan based on your specific orthodontic needs. Providing orthodontics for both children and adults, we recognize that each patient is unique and will help to develop your unique smile based on your specific goals.
Services
Dr. Timothy Finelli was raised in West Islip, NY. He attended Tufts University and graduated Magna Cum Laude with a degree in Mechanical Engineering. Returning to Long Island for his dental training, Dr. Finelli graduated first in his class from Stony Brook School of Dental Medicine. Immediately following dental school, he completed two years of training in orthodontics and dentofacial orthopedics at Boston University.
We understand that orthodontic treatment can interfere with important obligations that you have during the day, including work and school. We have tried to design treatment methods in order to minimize our appointment times and intervals between visits to allow fewer conflicts with your schedule. During your orthodontic care, there will be different types of appointments that are needed.
This important visit will fully address the orthodontic needs of you or your child and is complimentary (FREE OF CHARGE). Once Dr. Finelli or Dr. Siller review the records and confirm the initial treatment plan, you are now ready to get your braces! For most patients, this is the appointment where the doctor places the braces on the teeth and a wire is secured into the brackets.
If you'd like to share some kind words and smiles, please ask our front desk staff for a comment card at your next appointment. We'd love to hear about your experience! 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.
Our office's number-one priority is to exceed your expectations in our quality of care and service. For the patient, this means a convenient appointment schedule, flexible payment plans, and a friendly, knowledgeable staff. For the patient, this means a reduction in exposure to radiation. This digital system does not use processing chemicals so it is also environmentally friendly.
Reviews (8)
Dana Buckley
Dana Buckley
Dec 24, 2020
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I had braces as a teenager but by adulthood my teeth had moved again and I hated them. At age 29 I decided I wanted to fix them and didn’t want to do traditional braces again so I decided to try Invisalign. I am so happy with the experience and the results! The entire Secoast Orthodontics staff has been wonderful through the whole process and made it painless and easy. They are consistently friendly, professional, kind and supportive which is especially appreciated during this crazy time.
Rachael Cassen
Rachael Cassen
Nov 26, 2020
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Great place! me and my sisters have been going here for 8+ years and they are always so nice and caring!
Kyra Zorn
Kyra Zorn
Nov 11, 2020
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Excellent pediatric practice for braces and orthodontic work. Doctors are wonderful as is staff. Always friendly and patient and they really have gone out of their way to accommodate difficult scheduling issues. My 14 year old freshmen in HS started his Invisalign’s 2 years ago ... he persevered with the help of Seacoast which included patience and a good sense of humor. His teeth look beautiful! I highly recommend this practice.
Jeremy Tetreault
Jeremy Tetreault
Sep 30, 2018
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I have brought both my daughters to Seacoast Orthodontics after my dentist recommended them. We have been thrilled with the staff and doctors. Both my girls smiles look fantastic. They have been very accommodating with appointments when it comes to our busy schedules. Keep up the great work.
Aubrie Mcginn
Aubrie Mcginn
Sep 06, 2018
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Fast and well done service from the staff at the desk and in the back! I really like how they inform you and your guardians on exactly what's going on. I've never had a problem within the 3 years I've been in the program!
Jon Altbergs
Jon Altbergs
Aug 03, 2018
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Great staff, from the front desk to the orthodontists. We got great results and, as a parent, I always felt in the loop. When things went wrong—as they inevitably do—they were always able to get us in quickly.
I’ve happily recommended them to friends and recommend them to anyone who needs orthodontic services.
Jessica Deschenes
Jessica Deschenes
May 10, 2018
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Best orthodontist around!
We are on our third member of our family coming here. I wouldn’t go or bring my kids anywhere else.
Drs are great, and we love the rest of the staff especially Heather. My daughter is generally very nervous but she makes her feel at ease!!!
Coming here was the best decision we made!
Sophie Hall
Sophie Hall
May 04, 2018
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I have been to many dentists and have easily found this one to be the most efficient and flexible. All of the staff are wonderful to talk to and be around. The environment in the building is welcoming and friendly as soon as you walk in