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37 Years
experience
Your Trusted Orthodontists in Philadelphia & Lawrenceville, NJ
Philadelphia Orthodontists Orthodontics has been a trusted provider of orthodontic care in Philadelphia and Lawrenceville, NJ, for over 36 years. Founded by Dr. William Roberts and Dr. Tanja de Marsche, both board-certified orthodontists with decades of combined experience, we specialize in creating beautiful, healthy smiles for patients of all ages. Our practice offers a comprehensive range of orthodontic solutions, including Invisalign, clear braces, and traditional metal braces, tailored to meet individual needs. With two convenient locations featuring state-of-the-art facilities, we prioritize patient comfort and satisfaction.

Our team is committed to excellence in dentistry, utilizing advanced technology and sterilization techniques to ensure optimal outcomes. We coordinate closely with general dentists to provide holistic oral health care. Our dedication to personalized treatment, competitive pricing, and flexible financing options makes orthodontic care accessible and stress-free. Whether you're seeking treatment for yourself or your child, our experienced staff is here to guide you through every step of your smile transformation journey.
Services
Invisalign Braces Invisalign Teen Clear Braces Adult Orthodontics Teen Orthodontics Orthodontic Consultations Dental Braces Orthodontic Treatment Smile Gallery
Details
  • Year established: 1989
Highlights and features
  • Over 36 years of combined orthodontic experience from board-certified specialists.
  • Two convenient locations in Philadelphia and Lawrenceville with state-of-the-art technology.
  • Free initial consultations and competitive treatment fees.
  • Personalized treatment plans for adults and teens using Invisalign and clear braces.
  • Flexible financing options and insurance coordination for affordable care.
Associations and certifications
  • American Board of Orthodontics
Services
Invisalign
Invisalign offers a discreet, removable alternative to traditional braces using custom clear aligners. This treatment gradually straightens teeth without metal brackets or wires, ideal for adults and teens seeking aesthetic solutions. Patients enjoy the flexibility to eat and clean teeth normally while achieving precise tooth movement through advanced 3D imaging technology.
Braces
Traditional metal braces provide effective orthodontic correction for complex alignment issues. Modern designs feature smaller brackets and lighter wires for enhanced comfort while maintaining durability. This proven method ensures optimal results for patients requiring significant bite adjustments or severe malocclusion correction.
Invisalign Teen
Invisalign Teen addresses orthodontic needs for adolescents with growing jaws. Specialized features include eruption tabs for emerging permanent teeth and compliance indicators to monitor wear time. This solution combines the benefits of clear aligners with teen-specific design considerations for successful treatment outcomes.
Clear Braces
Clear braces offer a less visible alternative to metal braces using tooth-colored ceramic brackets. This option provides the effectiveness of traditional braces with aesthetic advantages, particularly suitable for adults seeking discreet treatment while maintaining consistent orthodontic forces for optimal alignment.
Orthodontic Consultation
Comprehensive orthodontic consultations include dental exams, bite analysis, and treatment planning. Patients receive personalized recommendations for Invisalign, braces, or alternative solutions during free initial visits. This assessment determines eligibility, treatment duration, and financial options to start the smile transformation journey.
People
William W. Roberts III
Orthodontist
Board-certified orthodontist with over 40 years of experience, Dr. Roberts graduated from the University of Pennsylvania and Temple University School of Dentistry. He has authored orthodontic publications and lectured internationally for three decades.
Tanja J. de Marsche
Orthodontist
Board-certified orthodontist with 35+ years of experience, Dr. de Marsche trained at the University of Pennsylvania and Temple University. She previously served as Clinical Assistant Professor and maintains active involvement in dental society projects.
Questions
What orthodontic options are available for adults?
We offer Invisalign, clear braces, and traditional metal braces tailored to adult needs, with treatment plans considering lifestyle and aesthetic preferences.
How does Invisalign Teen differ from adult Invisalign?
Invisalign Teen includes eruption tabs for developing teeth and compliance indicators to track wear time, addressing adolescent-specific orthodontic requirements.
What financing options do you provide?
We offer no-interest payment plans, Care Credit financing, insurance coordination, and full-payment discounts to make orthodontic treatment accessible.
Are there age restrictions for orthodontic treatment?
We treat patients of all ages, with specialized approaches for children, teens, and adults to ensure optimal orthodontic outcomes.
How long do typical treatments last?
Treatment duration varies by case complexity, ranging from 5 months for minor corrections to 24 months for comprehensive orthodontic transformations.
What technology do you use for treatment planning?
We utilize 3D imaging and digital modeling to create precise treatment plans, ensuring accurate tooth movement predictions and personalized care.
Reviews (4)
Zila Martinez-Lozada
May 14, 2022 Report
It has been a great experience The doctor explained well what was his plan for my treatment and the assistants are friendly
Heather Howells
May 12, 2022 Report
Dr. Roberts and his team were great to work with! He had exceptional service and I love the results from my Invisalign. The receptionist also made scheduling very easy. They were able to accommodate my last minute schedule changes. I highly recommend this team!
Liz Armstrong
Mar 29, 2021 Report
Dr. Roberts and the entire staff are great. I love the results of my Invisalign treatment and my year-long treatment flew by! I had to reschedule appointments last minute a few times and Lisa was very understanding and accommodating. I highly recommend this office for any of your orthodontic needs.
Pamela Polk
Jun 06, 2020 Report
I highly recommend Doctor Roberts! At the age of 48 I decided I wanted to stop covering my smile. I was referred by a lady who had braces on at my hair salon and set up a consultation visit. I was sold! They thoroughly explained my options, explained the process, showed me before and after shots of previous patients. After looking at the pictures, I said they are miracle workers. I am scared to death of the dentist so this was a big step. They made me fill at ease. The staff is professional, friendly, helpful and funny. Thank you, Dr. Roberts, Lisa, Judy and Kathy for a great experience!