※As an expatriate, your treatment can be fully covered by your company’s insurance plan. We will guide you through the entire process.
Hello, I’m Dr. Naoko Koyama, Director of Fillion Orthodontic Clinic.
I have dedicated over 20 years to perfecting invisible orthodontic techniques and have personally treated more than 10,000 patients throughout my career.
Dr. Naoko Koyama, Director of Fillion Orthodontic Clinic
Below are before/after photos of actual patients treated at our clinic.
~ Complex Cases Other Clinics Said Were “Impossible” ~
~ Protruding Teeth Corrected in Just 2 Months ~
Our Unique Treatment Approach: We don’t just straighten teeth – we enhance your facial balance and natural beauty
~ Dramatically Improved Profile ~
~ Gap Teeth Corrected in Just 1 Month ~
~ Total Facial Balance Support, Not Just Orthodontics ~
European-Certified Specialist with a Master’s in Lingual Orthodontics from France and over 10,000 cases treated
Multilingual care – Dr. Koyama is fluent in English and French, ensuring clear communication throughout your treatment
Corporate insurance support – We assist with all necessary documentation to have your treatment covered by your company
Conveniently located in Hiroo (just 1 minute from the station), a popular expatriate neighborhood with extensive experience treating international patients
Invisible orthodontic options including lingual braces (behind the teeth) and clear aligners
【Special Free Consultation Campaign – Only 2 Slots Left This Month】
Premium orthodontic treatment fully covered by your company’s insurance
Consultation only is OK! No pressure sales! Consultations are completely free! Guaranteed treatment by an orthodontic specialist!
👇Schedule your FREE consultation in just 1 minute👇
※Exact costs vary based on your dental condition and treatment method. We will suggest the optimal plan for your specific needs.
1. European-Certified Specialist with 20+ Years of Experience
Trained directly under Dr. Fillion, who has treated high-profile patients including members of European royalty and designer Paul Smith
With Dr. Fillion, world authority on lingual orthodontics
Top-tier qualifications and credentials in lingual orthodontics
First Japanese dentist to obtain European dental license
Master’s degree in Lingual Orthodontics from Paris University
Certified by the Japanese Orthodontic Society
Career History
2000
Graduated from Nippon Dental University
2000-2002
Worked at Ichikawa General Hospital Dental and Oral Surgery Department (Specialized in implants and jaw deformity surgery)
2003-2007
Joined the Orthodontics Department at Osaka Dental University Hospital
2007-2012
Worked at Dr. Fillion’s clinic in Paris, France
2008-2010
Master’s program in Lingual Orthodontics at Paris V University (where Dr. Fillion served as professor)
2010
Completed Master’s in Lingual Orthodontics from Paris V University (Obtained European dental license)
2012-2014
Continued working at Dr. Fillion’s clinic
2014
Established Hiroo Fillion Orthodontic Clinic
Qualifications & Professional Memberships
Certified by the Japanese Orthodontic Society
Certified Invisalign Provider
European Society of Lingual Orthodontics (ESLO) Member
Japanese Society of Pediatric Dentistry Member
Certified Incognito Provider
2. Multilingual Care – Treatment in English and French
We understand that clear communication is essential for successful orthodontic treatment. At Fillion Orthodontic Clinic, Dr. Koyama is fluent in both English and French, ensuring that:
You can explain your concerns and goals in your native language
You’ll understand every aspect of your treatment plan
You’ll receive detailed explanations about procedures and progress
All your questions will be answered thoroughly
Dr. Koyama personally guarantees that she will handle your treatment from consultation through completion, ensuring consistent, high-quality care throughout your orthodontic journey.
Dr. Koyama
Having lived and practiced in France for many years, I understand the challenges of receiving medical treatment in a foreign country. I’m committed to making your orthodontic experience in Tokyo as comfortable and stress-free as possible by providing care in your language.
3. Corporate Insurance Support – Treatment Covered by Your Company
As an expatriate in Japan, you may be eligible to have your orthodontic treatment fully covered by your company’s insurance plan. At Fillion Orthodontic Clinic, we have extensive experience helping international patients navigate this process.
We prepare all necessary documentation in English or French
We guide you through the insurance claim process step by step
We provide detailed treatment plans and cost estimates as required by your company
We help you maximize your insurance benefits
Many of our expatriate patients from companies like global financial institutions, tech companies, and diplomatic missions have successfully had their treatment costs covered. During your free consultation, we’ll discuss your specific insurance situation and help determine your eligibility.
Dr. Koyama
We understand that navigating insurance in a foreign country can be challenging. Our clinic has years of experience working with expatriate insurance plans, and we’ll handle the paperwork so you can focus on your treatment and results.
4. Conveniently Located in Hiroo – Tokyo’s International Hub
Just 1 minute walk from Hiroo Station – A clean, bright clinic environment.
Our clinic is strategically located in Hiroo, one of Tokyo’s most popular expatriate neighborhoods, making it exceptionally convenient for international patients:
Just 1 minute walk from Hiroo Station (Exit 4)
Close to international schools, embassies, and multinational companies
Surrounded by international restaurants, cafes, and shops
Comfortable clinic environment designed with international patients in mind
We have a long history of serving the expatriate community in Tokyo, with many patients from the French Embassy, international financial institutions, and global tech companies. Our team understands the unique needs of international patients and is committed to providing a welcoming experience.
Dr. Koyama
