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Your Trusted Orthodontist in Philadelphia & Lawrenceville, NJ
At Roberts & de Marsche Orthodontics, we provide adult Invisalign and youth braces to the communities of Center City, Philadelphia, and Lawrenceville, NJ. Dr. William Roberts and Dr. Tanja de Marsche have decades of experience treating patients using conventional braces and Invisalign to create beautiful, strong, aligned smiles. Our practice specializes in orthodontics and Invisalign, offering youth braces, adult braces, and Invisalign treatments for both adults and teens. We are an Invisalign Elite Preferred Provider with over 2,000 successfully treated patients.

Our goal is to help patients understand orthodontic innovations and provide treatments tailored to their oral health needs. With offices in Philadelphia and Lawrenceville, we pride ourselves on personalized care, modern equipment, and a familial atmosphere. We offer competitive fees, financing options, and Saturday appointments to ensure accessibility and convenience for all patients.
Services
Adult Braces Invisalign Braces for Kids Orthodontic Consultations Saturday Appointments
Highlights and features
  • Over 36 years combined experience in orthodontic care
  • Invisalign Elite Preferred Provider with 2,000+ successful cases
  • Saturday appointments available in Lawrenceville
  • State-of-the-art technology in both office locations
  • Personalized treatment plans for all age groups
Associations and certifications
  • American Board of Orthodontics
  • Invisalign Elite Preferred Provider
What people say
Great staff Excellent results Friendly team Saturday appointments Professional care
Services
Adult Braces
We offer discreet adult orthodontic solutions including ceramic braces and traditional metal braces. Our experienced team creates personalized treatment plans that address alignment issues while minimizing impact on professional and social life. Treatment focuses on correcting bite problems, reducing enamel erosion, and improving overall oral health through modern orthodontic techniques.
Invisalign
As an Invisalign Elite Preferred Provider, we deliver customized clear aligner treatment for adults and teens. This nearly invisible solution offers removable trays for eating and cleaning, with treatment durations often shorter than traditional braces. Our practice has successfully completed over 2,000 Invisalign cases with precise, lasting results.
Braces for Kids
We specialize in youth orthodontic care for pre-teens and teens using metal or ceramic braces. Our approach includes early intervention options for elementary-age children and comprehensive treatment plans. The team focuses on making orthodontic care comfortable and educational for young patients while addressing alignment issues.
Saturday Appointments
Our Lawrenceville office offers Saturday hours to accommodate busy schedules. This service benefits working adults and families who need orthodontic care without weekday time constraints. Appointments are available from 9:00 AM to 2:00 PM with the same experienced team available during regular business days.
Orthodontic Consultations
We provide comprehensive initial consultations to determine the best orthodontic solutions. These evaluations include thorough examinations and treatment recommendations tailored to individual needs. The process helps patients understand their options for traditional braces, Invisalign, or interceptive orthodontics.
People
William Roberts
Orthodontist
Dr. Roberts has over 36 years of combined experience in orthodontics. He completed dental school at the University of Pennsylvania and specializes in adult and adolescent orthodontic care. Known for his personable approach, he has treated over 2,000 Invisalign patients.
Tanja de Marsche
Orthodontist
Dr. de Marsche brings extensive orthodontic expertise to the practice. She completed her training at the University of Pennsylvania and focuses on creating beautiful smiles for patients of all ages. She is particularly noted for her patient-centered approach and Saturday availability.
Soleil de Marsche Roberts
Orthodontist
Dr. Soleil de Marsche Roberts holds a DMD and MSD degree with specialized training in craniofacial orthodontics. She completed a fellowship in treating cleft lip/palate cases and brings expertise in pediatric sleep apnea solutions to the practice.
Questions
What orthodontic services do you offer for adults?
We provide Invisalign clear aligners, traditional metal braces, and ceramic braces specifically tailored for adult patients with discreet treatment options.
Do you treat both children and adults?
Yes, we specialize in orthodontic care for all ages, including interceptive treatment for children, teen braces, and adult orthodontics.
Are Saturday appointments available?
Yes, our Lawrenceville office offers Saturday hours from 9:00 AM to 2:00 PM for patient convenience.
What payment options do you offer?
We provide competitive treatment fees, financing options, and accept MetLife insurance to make orthodontic care accessible.
How experienced are your orthodontists?
Our team has over 36 years combined experience with 2,000+ Invisalign cases and specialized training from the University of Pennsylvania.
What makes your practice unique?
We offer state-of-the-art technology, personalized care, and family-friendly offices with game rooms and flexible scheduling options.