Welcome to PhD Orthodontics – Where Expertise Meets a Smile!
PhD Orthodontics proudly serves the San Gabriel Valley, CA, under the care of Dr. Xuanyu Lu — an orthodontist with a global perspective and a deep commitment to clinical excellence. Dr. Lu earned his PhD and completed Advanced Orthodontics Residency training at the University of Illinois at Chicago (UIC), followed by a Craniofacial Orthodontic Fellowship at Children’s Hospital Los Angeles (CHLA). He later contributed to the field as a faculty member at the University of Southern California (USC), helping train the next generation of orthodontic specialists.
At PhD Orthodontics, we provide High-Quality, Evidence-Based Practice tailored to each patient’s unique needs. We strive to make every visit Enjoyable and Informative, building lasting Trust through Personalized Attention, Clinical Transparency, and a focus on Long-Term Stability and Facial Aesthetic.
Our Mission at PhD Orthodontics
At PhD Orthodontics office, our mission is to provide Exceptional, Evidence-Based Practice grounded in over a decade of experience and specialized training in Craniofacial Orthodontics. As a scientific clinician, every treatment plan is carefully crafted using the latest research and clinical evidence to ensure the best possible outcomes. We prioritize patient understanding and transparency—educating families on the “WHY” behind each decision before moving forward. Our focus is on Early Orthodontic Intervention, addressing Facial and Jaw Development at the Optimal time to support Healthy, Harmonious Growth before the Adolescent Growth Spurt. We also emphasize Airway and Breathing health, recognizing that Pediatric Sleep Apnea is often overlooked and can significantly impact a child’s development. Our goal is not only to complete treatment with Stable Occlusion for Long-term result, but also to create a Natural, Attractive Smile Arc that enhances Facial Aesthetics and Confidence.
We change your smile, you change the world.
Smile Gallery of PhD Orthodontics












Why are we different?
- We guide you to understand the “why” first
- We are an evidence-based practice
- We are experts in early treatment
- We focus on growth and airway
- We provide cleft/craniofacial care
- We prefer non-extraction
- We commit to long-term stability
FAQs
Do you accept appointments?
Yes, we do accept appointments at PhD Orthodontics. In fact, we highly recommend that you schedule an appointment with us in advance to ensure that you receive the best possible care.
Do I need to arrive early for my first appointment?
Yes, please arrive at least 10-15 minutes early to fill out any patient forms at PhD Orthodontics.
What forms of payment do you accept?
We accept checks, cash, credit cards, and most insurance plans. Contact PhD Orthodontics so a member of our team can verify your insurance or visit our Payment Options page for more information!
How often should I visit the dentist?
It is important to schedule routine checkups and cleanings to keep your teeth and gums healthy. It is recommended by the ADA to visit the dentist at least once every six months. Contact us now to book your appointment and take the first step toward optimal oral health!
What services do you offer?
At PhD Orthodontics, we are happy to offer a variety of services including: