Last Updated on 2週間 ago by prebeau

Article supervised by: Dr. Kuniyasu Mori (毛利 国安)

If you are looking for an English speaking dentist in Tokyo to treat unsightly white marks on your teeth, you may have discovered that many clinics still rely on traditional drilling. At PreBeau Oral Care in Akasaka, we specialize in a completely non-invasive, zero-drilling approach to restore your natural smile.

What Are White Spot Lesions?

White spot lesions (WSLs) are opaque, chalky-white discolorations on the surface of your teeth. These marks occur when the enamel—the hard, protective outer layer of the tooth—loses vital minerals like calcium and phosphate. This demineralization alters the way light reflects off the tooth, making the affected areas stand out starkly against the surrounding healthy, translucent enamel.

Common Causes of White Spot Lesions

Understanding the root cause is the first step toward effective and targeted treatment. The most frequent culprits include:

• Post-Orthodontic Treatment: Plaque often accumulates around braces. When the brackets are removed, decalcified white spots are frequently left behind on the previously covered enamel.
• Post-Whitening: While professional teeth whitening is safe, it can sometimes temporarily dehydrate the teeth, making underlying, previously unnoticed white spots more prominent.
• Enamel Hypoplasia: Sometimes, adult teeth erupt with these spots already present due to developmental interruptions during childhood, leading to underdeveloped enamel.
• Fluorosis: Excessive fluoride intake while adult teeth are still forming beneath the gums can lead to fluorosis, which manifests as stark white mottling on the enamel.

Our Approach: The Zero-Drilling Philosophy

Our clinical philosophy is strictly centered on preserving your natural tooth structure. Traditionally, treating severe white spots meant irreversibly drilling away the discolored enamel to place a composite resin or ceramic veneer.

Instead, we utilize Icon Resin Infiltration, a revolutionary micro-invasive treatment that requires absolutely no drilling and no local anesthesia. As a Certified Public Instructor and Key Opinion Leader for DMG (the manufacturer of Icon) and Yoshida (the official distributor), Dr. Kuniyasu Mori ensures that our clinic provides the highest standard of evidence-based, minimally invasive care in Japan.

Important Note on Brown Spot Lesions: If your lesions have progressed to a brownish tint, a single-step infiltration is not sufficient. Brown spots require a dual-protocol approach, carefully combining professional teeth whitening with the resin infiltration treatment to achieve a seamless, natural color match.

How Icon Resin Infiltration Works (Treatment Flow)

The following treatment flow is typically completed in a single visit, providing immediate aesthetic improvements while preserving your healthy tooth structure.

• Step 1: Comprehensive Assessment We evaluate the depth, size, and cause of the white spots. Our staff ensures you fully understand the diagnosis and the expected outcome before any procedure begins.
• Step 2: Surface Preparation The affected tooth is isolated to keep it completely dry and clean. We then apply a specialized 15% hydrochloric acid etching gel. This crucial step opens the microscopic pores of the demineralized enamel, safely removing the pseudo-intact surface layer that blocks treatment.
• Step 3: Drying the Lesion We apply a high-grade ethanol solution to draw out any remaining moisture from the micropores of the tooth. If the white spot visually disappears at this stage, it serves as a clinical confirmation that the final resin application will be highly successful.
• Step 4: Resin Infiltration The highly fluid Icon infiltrant resin is applied directly to the prepared tooth. Driven by capillary action, the resin penetrates deep into the porous enamel matrix, effectively filling the microscopic voids left by mineral loss and blocking damaging acids.
• Step 5: Light Curing and Polishing The resin is cured and hardened using a specialized dental light. Finally, the tooth is meticulously polished to a high gloss, perfectly matching the natural light-reflecting properties and texture of your surrounding enamel.

Why Choose PreBeau Oral Care?

Finding a trusted, English speaking dentist in Tokyo can be challenging, especially for highly specialized cosmetic and preventive procedures.

Dr. Kuniyasu Mori brings extensive international training and academic excellence to your care. Holding a Doctor of Dental Surgery degree from Osaka University, alongside advanced post-doctoral training in periodontics at the University of Michigan and clinical implant residency at UCLA, Dr. Mori combines global techniques with meticulous Japanese precision.

Clinic Information

To schedule a consultation or learn more about our treatments, please contact us or visit our clinic.

• Clinic Name: PreBeau Oral Care (プレビュー・オーラル・ケア)
• Address: Urbane Akasaka 5F #501, 3-15-5 Akasaka, Minato City, Tokyo 107-0052
• Phone: 03-6821-7481
• Website: https://prebeau-oc.com/
• English Services Information: Click here for our English Guide
• Google Maps & Reviews: Visit our Google Business Profile