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Clinic photo

Address 1st fl, Hirakawa-cho Court, 1-1-1, Hirakawa-cho, Chiyoda-ku, Tokyo, 102-0093, JAPAN
Phone +81-3-3239-4182
Office hours 10:00~14:00 / 15:00~19:00 (Saturday until 17:00.)
Non-consultation days Thursdays,Holidays and Sundays

Access by subway Tokyo Metro Hanzomon Line Hanzomon Station, 30 sec on foot.
Tokyo Metro Yurakucho Line Kojimachi Station.
Tokyo Metro Marunouchi Line, Nanboku Line Yotsuya Station.
Directions Take Exit 1 from Hanzomon Station on the Hanzomon subway line. Turn right and pass the first crossroads.
Our office is located just two doors away from an Origin Bento shop.


Director Ayako Zenitani

Director Ayako ZenitaniOur director Ayako Zenitani has a wide range of clinical experience in the United States, and has become well versed in many fields since coming back to Japan, including preventive dentistry and implant treatment. Our patients have strong faith in her precise methods of treatment.

2000 Graduated from Fukuoka Dental College, acquired dentistry license
2000 to 2003 Worked at a private dental clinic in Osaka
2003 to 2004 Studied esthetic dentistry abroad at UCLA
2004 to 2006 Studied implants abroad at the New York University
2006 Returned to Japan
2006 to 2012 After returning to Japan, worked as the director at a branch clinic of a major medical corporation. Visited a large number of clinics to perform operations as an implant specialist.
2012 Opened the Hanzomon Dental Office

2006年 Received an award from the Academy of Osseointegration
Received the top award at the New York University student clinical research competition

meeting name
Academy of Osseointegration


  • clinic

    Our bright sunlit clinic reduces the sense of tension felt when visiting a dental clinic, and we strive to create an open and pleasant environment in which our patients can feel comfortable.

  • operating rooms

    Our clinic has been designed to place importance on privacy, and is separated by partitions so that our patients can relax without having to be concerned about other patients.

  • operating rooms(private)

    Our operating rooms are completely private, enabling our patients to consult with us about personal matters without having to worry about other patients.

  • digital X-ray machine

    We have a Dental CT machine, which is much safer to the human body than conventional X-ray machines as it limits exposure to a tiny amount.

  • microscope

    Microscope you can see every detail do not know with the naked eye. It is a device that essential in root canal treatment, it is also used to attach the prosthesis and the discovery of a small dental caries.

  • x-ray image

    Based on X-ray image, you set up a treatment plan for patients.

  • whitening

    It is a whitening method using special light. I give this treatment at a dental clinic. It is most suitable for the once which is busy with the one which satisfaction is high incomparison with the home whitening.

  • oral vacuum

    When teeth are drilled, invisible dust flies out. We use an oral vacuum with strong suction to suck up the dust, blood, and bacteria, in order to minimize what is accidentally swallowed by the patient.

  • tooth surface cleaning device

    This is a motorized tooth surface cleaning device manufactured by EMS. As seen in the picture, it simultaneously sprays air flow powder and an ultrafine water jet to quickly remove plaque and pigmentation. Another feature of this device is its soft touch.


Dental Implant Treatment

Dental Implant TreatmentImplant treatment involves embedding artificial dental roots made of titanium into the jaw bone. It is adopted in cases where teeth are lost due to cavities, periodontal disease, or accidents, etc.

Ceramic Dental Crowns

Ceramic Dental CrownsThese white dental crowns are made of ceramic. They are esthetically pleasing and suitable for treatment on the front teeth.


WhiteningTo make natural teeth look their whitest, we provide a dedicated bleaching agent that can be used at our dental clinic and at your own home.

Preventive Dentistry

Preventive DentistryIt is more important to receive periodic checkups to maintain a healthy mouth and prevent cavities and periodontal disease, rather than waiting until something starts to hurt.

Periodontal Disease Treatment

Periodontal Disease TreatmentPeriodontal disease occurs when gums become inflamed due to a lack of cleaning, and may cause surrounding bone to break down. We perform specialized treatment to remove the bacteria that causes this disease.

Dental general practice

Dental general practiceWe do dental treatment familiar to us such as caries, root canal treatment, dentures. When you become a tooth decay you will need root canal treatment to leave teeth and make dentures to replace lost teeth. It is important to take appropriate treatment according to the symptoms.

Dental surgery

Dental surgeryThese braces enable teeth to be corrected using a transparent mouthpiece that can be removed.

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