Last Updated on 2週間 ago by prebeau

Written By Kuniyasu Mori, DDS, Director of PreBeau Oral Care

Welcome to PreBeau Oral Care. Located on the 5th floor of Urbane Akasaka, our practice is built upon a biological, non-invasive philosophy where we prioritize preserving your natural teeth without drilling. For patients seeking a brighter smile, professional teeth whitening is an excellent, conservative cosmetic option.

As an Akasaka English speaking dentist, I frequently consult with patients from around the world who are living in or visiting Japan and are curious about their whitening options. Below, I have compiled a detailed Q&A to explain the science of home whitening, compare the major systems available, and detail why our clinic specifically utilizes the Angelus Home 16% system.

Q: What exactly is home whitening, and how does it work?

A: Home whitening is a professional bleaching method you perform yourself using custom-fitted mouthpieces (trays) and a specialized gel prescribed by a dentist. The primary active ingredient is carbamide peroxide. When applied, carbamide peroxide slowly breaks down into hydrogen peroxide and urea. The hydrogen peroxide penetrates the microscopic pores of your tooth enamel and dentin, safely oxidizing and breaking apart complex organic pigment molecules into smaller, colorless compounds.

Q: What are the major home whitening systems available in Japan?

A: In Japan, dental bleaching agents are strictly regulated by the Pharmaceutical and Medical Device Act. The market generally falls into three categories:

• Standard 10% Systems (e.g., GC TiON Home Platinum, Nite White Excel): These are the most common domestically approved systems. While very safe, the 10% concentration is relatively low. Patients usually need to wear their trays for 2 to 8 hours daily over a longer period (often a month or more) to see significant results.
• High-Concentration Systems (e.g., Opalescence 20%-35%): Brands like Opalescence offer much higher concentrations that dentists must privately import, as they exceed domestic limits. While these strong gels whiten teeth very quickly, they significantly increase the risk of severe dentin hypersensitivity (shooting pains) and chemical burns to the gum tissue.
• Optimized Systems (Angelus Home 16%): This represents the middle ground—a domestic medical device-approved system that offers a higher concentration than the standard 10%, without the severe sensitivity risks of the imported 35% gels.

Q: Why does PreBeau Oral Care choose Angelus Home (16% Carbamide Peroxide)?

A: At our clinic, we evaluate the clinical evidence, safety, and comfort of every material we use. I chose Angelus Home 16% for several critical reasons:

1. Optimal Balance of Speed and Comfort: A 16% carbamide peroxide gel yields roughly 5.6% active hydrogen peroxide. This provides noticeably faster and more effective whitening than traditional 10% systems while remaining fully compliant with Japanese health and safety standards.
2. Efficient Wear Time: The recommended usage for Angelus Home 16% is just 2 hours per day for 2 weeks. This shorter daily requirement is much easier to fit into a busy schedule compared to overnight systems.
3. Built-in Desensitizers: Hypersensitivity is the main reason patients stop whitening. Angelus Home contains potassium nitrate and sodium fluoride, which soothe the dental nerve and actively remineralize the enamel during the whitening process.

Q: Fun Fact: Can whitening actually improve my oral health?

A: Yes! While most people view whitening purely as a cosmetic procedure, it actually has a proven secondary effect: preventing tooth decay and periodontal disease.

Historically, carbamide peroxide was first used by orthodontists in the 1960s as an oral antiseptic to heal gum inflammation—the teeth whitening was just a happy side effect! It works through two mechanisms:

1. Bacterial Reduction: Hydrogen peroxide is a powerful antibacterial agent that attacks the cell walls of plaque and gingivitis-causing bacteria.
2. Neutralizing Acid: When carbamide peroxide breaks down, it releases urea. Urea temporarily elevates the pH of your oral cavity, making it more alkaline. Since cavity-causing bacteria (like Streptococcus mutans) need a highly acidic environment to survive and demineralize your teeth, this pH shift actively neutralizes their attack.

Q: What is the process like, and how quickly can I get my trays?

A: Safety begins with a proper clinical foundation. We first perform an oral examination to ensure your teeth are free of decay and your gums are healthy. We will then take precise molds (impressions) of your teeth to fabricate your custom mouthpieces.

We know your time is valuable. If requested, we can fabricate your custom whitening trays in clinic within 1 to 2 hours.

Alternatively, if you prefer not to wait, you can pick them up at a later date, or we can conveniently mail the completed trays and whitening gel directly to your address in Japan.

Ready to start your whitening journey? If you are looking for an English speaking dentist in Tokyo to help you achieve your aesthetic goals safely, we are ready to guide you. We cater to the international community and ensure all medical explanations are clearly understood.

For inquiries or to book a consultation, please reach out to us directly:
Email: prebeau.oc@prebeau
Click here for more information about the fee and the office.
About In-office whitening (bleaching).

PreBeau Oral Care

• Address: Urbane Akasaka 5F Room 501, 3-15-5 Akasaka, Minato City, Tokyo 107-0052
• Phone: 03-6821-7481
• Email: prebeau.oc@gmail.com
• Hours: Mon–Fri 9:30–13:30, 14:30–18:30 (Closed Weekends & Holidays)
• Website: https://prebeau-oc.com/
• Google Maps & Reviews: View our Google Business Profile