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Your Trusted Orthodontist in Islip, NY
South Bay Orthodontics has been dedicated to providing exceptional orthodontic care for over two decades. Our practice combines advanced technology with a personalized approach to address the unique needs of every patient, from children to adults. We specialize in creating customized treatment plans that enhance both oral health and self-confidence through services like Invisalign, traditional braces, and corrective jaw surgery. Our team prioritizes patient comfort and education, ensuring each individual understands their treatment process and expected outcomes.

With a focus on family-friendly care, we maintain a welcoming environment where patients feel valued and supported throughout their orthodontic journey. Our commitment to excellence is reflected in our use of modern techniques and our dedication to staying current with industry advancements. We accept most insurance plans and offer flexible payment options to accommodate diverse needs. Located in Islip, NY, we serve the broader Long Island community, helping families achieve lasting, beautiful smiles.
Services
Invisalign Braces Early Treatment Adult Treatment Headgear Jaw Surgery Retention Emergency Care
Highlights and features
  • We offer over 20 years of combined orthodontic expertise.
  • Our personalized treatment plans address individual patient needs.
  • We provide complimentary initial consultations with no obligations.
  • Our team includes board-certified orthodontists with advanced training.
  • We accept most major insurance plans for patient convenience.
What people say
Friendly and professional Pleasant experience Highly recommend Kind and helpful Exceptional service
Services
Invisalign
Invisalign treatment straightens teeth using clear, removable aligners that are virtually undetectable. This wire-free option suits patients seeking discreet orthodontic correction for mild to moderate alignment issues. Our team creates customized treatment plans with periodic adjustments to ensure optimal results.
Braces
We offer quality metal and ceramic braces for children and adults requiring comprehensive orthodontic correction. These durable systems effectively address complex alignment issues while offering modern design improvements for enhanced comfort and aesthetics.
Early Treatment
Our early intervention programs address developmental dental issues in children aged 7-10. This phase-one treatment creates proper space for permanent teeth eruption and corrects bite problems before full orthodontic treatment begins.
Jaw Surgery
We provide corrective jaw surgery for patients with severe bite discrepancies or facial asymmetry. This treatment combines orthodontics with surgical repositioning to improve both function and facial appearance for lasting results.
Retention
Our retention programs maintain treatment results through customized retainers and follow-up monitoring. We offer both removable and fixed retention options to preserve your newly aligned smile for years to come.
People
Dr. Margaret Zadnik-OConnell
Doctor
Dr. Zadnik-OConnell earned her DDS with magna cum laude honors from Case Western Reserve University and completed orthodontic residency at Stony Brook University. She brings over 20 years of clinical experience to patient care while maintaining active involvement in professional development.
Questions
What orthodontic treatments do you offer?
We provide Invisalign, traditional braces, early intervention treatment, jaw surgery, and retention services for patients of all ages.
Is the initial consultation free?
Yes, we offer complimentary initial visits to evaluate orthodontic needs and develop personalized treatment plans.
Do you accept insurance?
We accept most major dental insurance plans and will help maximize your orthodontic coverage benefits.
How long do treatments typically last?
Treatment duration varies by case complexity, ranging from 12-36 months depending on individual correction requirements.
What emergency services are available?
We provide after-hours emergency care for urgent orthodontic issues requiring immediate attention outside regular office hours.
What makes your practice unique?
Our personalized approach combines advanced technology with family-centered care in a comfortable, modern office environment.