A dental clinic operated by the world's largest dental group Aoyama Quartz Dental Clinic

  • 5 minutes walk from Shibuya Station
  • English available
  • Collaborative treatment by general practitioners and specialists

Hours: 9:00-20:00 (Mon-Sat), 9:00-19:30 (Sun)

WhatsApp available

We also welcome your reservations and inquiries by email.


A comprehensive dental clinic packed with the passion of the Tokushinkai Group

The Tokushinkai Group was founded in 1981 in Niitsu City, Niigata Prefecture (now Akiha Ward, Niigata City), a small rural town with a population of about 60,000. We started out as an ordinary small dental clinic with three treatment units and six staff members, but since our founding we have always continued to pursue the ideal form of patient-centered dental care.
As of April 2024, we have grown into an organization with 86 locations around the world, with over 1,400 staff members representing 10 nationalities. We are one of the largest dental medical groups in Japan, treating approximately 700,000 patients annually, which is equivalent to approximately 0.3% of the total number of dental patients in Japan. In the field of dental technology, we also have manufacturing bases and design centers in Japan, the United States (LA, Dallas), Myanmar, and Thailand (Bangkok), and are involved in the manufacture of dental prostheses for countries around the world.
Tokushinkai Quartz Tower, which opened in 2015, is our flagship building, incorporating all of the evolution of Tokushinkai to date. We are equipped with the latest equipment, and have specialists in all types of dental diseases on staff, so we are prepared to provide dental treatment that satisfies even our overseas patients.

Message from the Director to Patients

Director Shuhei Hosokawa

Among the many dental clinics, we have received support from many patients who visit us. The reasons for this are as follows:

1. Easy to understand explanation
2. Polite treatment and response
3. A system that allows patients to freely express their opinions

We have a sufficient medical team and the latest equipment, and we are looking forward to strengthening our medical team structure so that we can meet your further needs.

Treatment policy of our clinic

01 I listen carefully to what my patients have to say.

We work closely with patients from the initial consultation, to creating a treatment plan, and through to the completion of treatment. We listen to the patient's requests, assign the necessary staff, and proceed with treatment.

Introduction of specialist doctors

Dental treatment with minimal grinding Junji Tagami

Professor Emeritus at Tokyo Medical and Dental University
Director of Quartz Dental Clinic
Visiting Professor, Asahi University
Visiting Professor at Ou University
Visiting Professor at Showa University
Adjunct Professor, University of Indonesia
Japanese Academy of Conservative Dentistry (former president) Specialist/Instructor
Specialist, Japan Society of Adhesive Dentistry (former president)
Certified doctor of the Japanese Academy of Esthetic Dentistry (former president)
Honorary member of the Japanese Society of Dental Materials and Devices (former council member)
Stomatological Society (Past President)
International Association of Dental Research (IADR) and others

Temporomandibular joint/clenching (acupuncture treatment) Masahiko Shimada

Professor Emeritus, Tokyo Medical and Dental University
Japanese Dental Society of Anesthesiology Specialist, Certified Doctor, Honorary Member
Japanese Society of Orofacial Pain Supervisor and Specialist
Japanese Society for Disability Dentistry, Certified Doctor

Implants Akito Sato

ICOI International Society of Oral Implantology (Certified Doctor/Instructor)
Director/CEO of Minamiaoyama Implant Dentistry Sato Dental Clinic

Implants Narumi Sato

Graduated from Tokyo Dental College
Tokyo Medical and Dental University Implant outpatient clinic staff member
Japanese Society of Oral Implantology Specialist

Implants Norio Akino

Tokyo Medical and Dental University Dental Hospital Implant Clinic Doctor
Japanese Society of Oral Implantology Specialist
Tokyo Medical and Dental University, Dental Hospital, Specially Appointed Assistant Professor
ITI Japan certified implant specialist
Tokyo Medical and Dental University Dental Hospital Clinical Training Supervisor
Part-time lecturer at the Department of Implant and Oral Regenerative Medicine, Tokyo Medical and Dental University Dental Hospital

correction Takeshi Nakai

Graduated from Hokkaido University School of Dentistry
Doctor of Dental Science
Member of the Japanese Orthodontic Association
Member of the Japanese Society of Lingual Orthodontics
Harmony Lingnal Certified Doctor
Invisalign Certified Dr.
Digital orthodontics study club member

Oral Surgery Kimio Uchiyama

Graduated from Tokyo Dental College
Doctor of Medicine (Dokkyo Medical University)
Visiting lecturer at Keio University School of Medicine (Oral and Maxillofacial Surgery)
Visiting Professor, Binzhou Medical University (China)
Visiting Researcher, Osaka University, Institute for Advanced Interdisciplinary Research
Japanese Society of Oral and Maxillofacial Surgery Supervisor and Specialist
Japanese Society of Pediatric Oral and Maxillofacial Surgery Supervisor
Certified and supervising doctor of the Japanese Society of Dental Care for Patients with Medical Conditions
Certified by the Japan Cancer Therapy Board (Oral and Maxillofacial Surgery)
Provisional Oral Cancer Supervisor of the Japanese Society of Oral Oncology

Oral Surgery Kaibuchi Nobuyuki

Doctor of Medicine
Japanese Society of Oral and Maxillofacial Surgery Specialist
Japanese Society of Oral Implantology Specialist
Specialist and instructor of the Japanese Society of Dentistry for Patients with Medical Conditions
Japan Society for Regenerative Medicine Certified Doctor

Endodontic therapy Yoshiaki Furusawa

Graduated from the School of Life Dentistry, Nihon University School of Dentistry
Graduated from Tokyo Dental College Graduate School of Dentistry (Majoring in Endodontics)
Tokyo Dental College Suidobashi Hospital, Department of Conservation
Certified doctor of the Japanese Academy of Conservative Dentistry
Member of the Japanese Association of Endodontists
Member of the Japanese Society of Microscopic Dentistry

The world's highest peak
Dental technology is here

Tokushinkai Group has its own dental laboratory department, "World Lab," with over 200 experts with a wealth of experience and knowledge. Among them, the high-quality department, Ultimate Styles, is staffed with top-class dental technicians, including Naoki Hayashi and Hirotomo Tada, and has many excellent technicians who are active on a global level. In addition to winning awards in numerous competitions, they have received high international acclaim, having presented at academic conferences around the world. The highest quality dental laboratories produced by these technicians can be ordered from within Japan.

Hayashi Naoki

He is a master ceramist at Ultimate Styles Dental Laboratory, the high quality division of World Lab USA, and continues to provide the best results to patients and dentists with strict aesthetic requirements around the world.

Hiroaki Tada

Vice President of Ultimate Styles Dental Laboratory. He has given many public lectures and written many papers in professional journals, and is attracting attention as a talented person who will lead the dental laboratory industry in the future.

Hiroki Ishihara

After graduating from Gifu Prefectural College of Health Sciences, he went to the United States to study porcelain technology. He won the Artistic Excellence Award at the "Estene C&B Dental Technician Contest 2011" and has given a lecture for dental technicians, so we can expect him to achieve even greater success in the future.

The skill of dental technicians makes a big difference in the aesthetics and functionality of dental prostheses. The subtle color and shape of teeth are determined by the design sense of dental technicians. Our strength is that our dedicated dental technicians can create artificial teeth that are natural and beautiful, with such precision that anyone can see them as if they were real teeth.

Dental technicians provide direct counseling via video call

You can also have direct counseling with dental technicians in the US via video call. We ask about the patient's concerns and wishes, and the dentist and dental technician can work closely together to proceed with treatment. An extremely high-definition camera is used for the call, so even the subtle shades of the teeth can be accurately grasped through the camera.

02 Pain-conscious treatment

We provide treatment with careful consideration to minimize pain during treatment so that all patients can visit our clinic with peace of mind and in comfort.

03 Prices will be shown before treatment

Dental treatment costs are by no means cheap. In particular, cosmetic treatments that are not covered by insurance inevitably place a large burden on patients. However, because we are confident in the techniques we provide, we want to ensure that patients are fully aware of the costs involved before undergoing treatment.

04 Treatment in a world-class environment

In addition to spacious private operating rooms, CT scans, and microscopes, we also thoroughly implement infection control using the highest level of sterilization equipment.

Fully sterilized and equipped with the latest equipment

It is used for microendodontic and implant surgery, periodontal surgery, etc. Not only is it completely sterilized, but we also have many of the latest surgical equipment available, so you can have your surgery with peace of mind.

  • Thorough hygiene management
  • Beds are also available for rest after surgery.

A dental anesthesiologist can be present during the surgery.

A dental anesthesiologist is a dentist who is responsible for managing anesthesia during surgery. At Quartz Dental Clinic, dental anesthesiologists are involved in treatment for surgeries such as implants. Dental anesthesiologists create reasonable surgical plans and manage the entire body to complete the surgery safely. With intravenous anesthesia and intravenous sedation administered by dental anesthesiologists, both the surgeon and the patient can undergo surgery with peace of mind.

Detailed examinations are possible using dental CT, panoramic X-rays, and dental X-rays.

We are able to perform precise image diagnosis, from localized areas of teeth to overall bone images. Based on this data, we provide safe and reliable treatment.

Precision treatment using a microscope

To provide more precise treatment, we use a microscope that can magnify images up to 20 times larger than the naked eye.

Advanced sterilization equipment with separate rooms for each work process

We carry out thorough infection control measures, such as performing cleaning, disinfection, and sterilization in dedicated rooms.