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20 Years
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Emergency
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Eco-Friendly Dental Care in Philadelphia
Dentists On Washington, established in 2006, is Philadelphia's first eco-friendly dental practice dedicated to reducing environmental impact while prioritizing patient wellness. Founded by Dr. Duyen Ngo and Dr. William J. Costello III, our practice combines over 15 years of clinical expertise with sustainable practices such as wind-powered electricity, digital X-rays, and chemical-free sterilization. We offer comprehensive dental services including preventive care, Invisalign, dental implants, and emergency treatments, serving communities in Center City, Bella Vista, and Washington Crossing.

Our commitment to excellence is reflected in our use of advanced technology like the VELscopeVx for oral cancer screening and our focus on patient education. With Saturday availability and two convenient locations, we strive to make high-quality, environmentally responsible dental care accessible to all. Our team's dedication to continuous improvement and community trust has earned us a 5-star Google rating and recognition as one of Philadelphia's top dental practices.
Services
Preventive Oral Care Invisalign Treatment Dental Crowns Root Canals Dentures Dental Implants Dental Veneers Emergency Dental Care Periodontal Treatment Dental Bridges
Details
  • Year established: 2006
Highlights and features
  • We offer eco-friendly dental practices powered by 100% wind energy.
  • Our dentists have over 15 years of experience since 2006.
  • We provide Saturday appointments for patient convenience.
  • We utilize advanced technology like digital X-rays and VELScope for diagnostics.
  • We offer emergency dental care services.
What people say
Friendly staff Thorough explanations Eco-friendly approach Compassionate care Comfortable experience
Services
Dental Implants
Dental implants are titanium posts surgically placed into the jawbone to support replacement teeth. They provide a stable foundation for artificial teeth, mimicking natural tooth roots. Ideal for patients with missing teeth, implants offer long-term durability and prevent bone loss when maintained with proper oral hygiene.
Invisalign Treatment
Invisalign uses custom-made, BPA-free plastic aligners to gradually straighten teeth without metal brackets. The nearly invisible aligners can be removed for eating and cleaning, offering a discreet orthodontic solution for adults and teens seeking improved smile aesthetics.
Emergency Dental Care
We provide immediate treatment for severe tooth pain, cracked teeth, lost fillings, and dental trauma. Our team prioritizes pain relief and infection prevention using digital X-rays and advanced techniques to resolve urgent oral health issues promptly and effectively.
Preventive Oral Care
Regular cleanings and checkups help maintain oral health by removing plaque buildup and detecting early signs of decay. We recommend biannual visits combined with daily brushing and flossing to extend the lifespan of natural teeth and dental restorations.
Dental Crowns
Dental crowns restore damaged or weakened teeth with custom-fitted porcelain caps. They protect fractured teeth, cover discolored restorations, and reinforce teeth after root canals, providing both functional and aesthetic benefits for long-term oral health.
People
Dr. Duyen Ngo, DMD
Dentist
Dr. Ngo, a 2006 Temple University graduate, specializes in restorative dentistry and Invisalign. She prioritizes eco-friendly practices and family-friendly care, serving patients with three children of her own.
Dr. William J. Costello III, DMD
Dentist
Dr. Costello, a Temple University alumnus, brings expertise in general and cosmetic dentistry. Recognized as a Top Dentist in Philadelphia and South Jersey, he focuses on patient comfort and sustainable dental solutions.
Questions
What makes your practice eco-friendly?
We use 100% wind-powered electricity, digital X-rays, chemical-free sterilization, and paperless records to minimize environmental impact while maintaining high care standards.
Do you offer emergency dental services?
Yes, we provide urgent care for toothaches, cracked teeth, lost fillings, and dental trauma with same-day appointments available for immediate relief.
Are Saturday appointments available?
Yes, we offer Saturday hours at both locations to accommodate patients with busy weekday schedules.
What dental insurance plans do you accept?
We work with all dental insurance providers and file claims electronically to maximize your benefits and reduce paperwork.
Can I schedule an appointment online?
Yes, you may request appointments through our website or call us directly at 215-389-9889 for faster scheduling assistance.