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Your Trusted Orthodontist in Greenland, NH
At Seacoast Orthodontics, we prioritize exceeding patient expectations through personalized care and advanced orthodontic technologies. Our team, led by Drs. Timothy Finelli and Jennifer Siller, develops individualized treatment plans tailored to each patient's unique needs, serving both children and adults across Greenland, Portsmouth, Rye, Exeter, and the broader Seacoast region. We utilize cutting-edge tools such as digital radiography, low-force braces, and patient-specific brackets to enhance comfort, reduce treatment time, and ensure optimal outcomes.

Our commitment to privacy and data security ensures patient information remains protected, while flexible payment plans and convenient scheduling accommodate diverse lifestyles. With decades of combined experience and a focus on continuous innovation, we deliver trusted, high-quality orthodontic solutions that transform smiles and boost confidence.
Services
Invisalign Traditional Braces Orthodontic Treatments Two-Phase Therapy Emergency Care
Highlights and features
  • We offer personalized treatment plans developed by experienced orthodontists.
  • Our office uses digital radiography and low-force braces for patient comfort.
  • We provide flexible payment plans and convenient appointment scheduling.
  • Our team prioritizes data security and patient privacy compliance.
  • We serve a wide range of ages with specialized orthodontic expertise.
What people say
TOP NOTCH staff Quick emergency appointments Superior experience Beautiful smile results Accommodating and available
Services
Invisalign
Invisalign treatment uses clear, removable aligners to straighten teeth discreetly. Patients benefit from faster treatment times, improved aesthetics, and the ability to maintain regular oral hygiene routines. This solution suits teens and adults seeking a nearly invisible alternative to traditional braces.
Traditional Braces
Modern metal braces employ high-grade stainless steel brackets and archwires for effective tooth alignment. Patients can personalize their treatment with colored elastics while benefiting from reduced friction and enhanced comfort compared to older designs.
Orthodontic Treatments for Children
We specialize in early orthodontic evaluation starting at age seven. Our treatments address jaw development, tooth spacing, and bite issues to prevent future complications while ensuring proper growth patterns in young patients.
Two-Phase Treatment
This approach combines early intervention with comprehensive treatment during adolescence. It optimizes jaw alignment and tooth positioning through strategic timing, often reducing future treatment complexity and duration.
Emergency Care
We provide prompt care for broken brackets, wire irritations, and other urgent orthodontic issues. Our team ensures timely solutions to maintain treatment progress while minimizing patient discomfort during unexpected situations.
People
Dr. Timothy Finelli
Orthodontist
Graduated first in his class from Stony Brook School of Dental Medicine and completed orthodontic training at Boston University. With over two decades of experience, he combines technical expertise with patient-centered care.
Dr. Jennifer Siller
Orthodontist
Co-founder of Seacoast Orthodontics, Dr. Siller specializes in personalized treatment plans using advanced orthodontic technologies for optimal patient outcomes.
Questions
What orthodontic services do you offer?
We provide Invisalign, traditional braces, two-phase treatment, emergency care, and specialized orthodontic solutions for children and adults.
How do I schedule an appointment?
Call our Greenland office at (603) 964-2220 to book your initial consultation or follow-up visit.
Do you treat patients of all ages?
Yes, we offer orthodontic care for both children and adults with customized treatment plans.
What payment options are available?
We offer flexible payment plans and accept major insurance providers for orthodontic treatments.
How do you handle orthodontic emergencies?
We prioritize emergency appointments for broken brackets, wires, or urgent discomfort during treatment.
What technology do you use?
Our office utilizes digital radiography, iTero scanners, and low-force braces for precise, comfortable care.