Bleeding when you brush, persistent bad breath, gums that seem to be pulling away from your teeth — these are signs that many people notice for months before seeking help, especially when living abroad and unsure where to turn. Gum (periodontal) disease is one of the most common chronic conditions worldwide: the WHO Global Oral Health Status Report (2022) estimates that severe periodontal disease affects around 19% of the global adult population, more than one billion people. Because it usually progresses with little or no pain, it is often discovered late.
This guide explains how gum disease is diagnosed and treated in Japan, what treatment involves at an English-speaking clinic in Tokyo, the fees you can expect, how many visits treatment typically takes, and the risks you should understand before starting. It is written for expats, long-term residents and visitors who want clear information in English.
What Is Gum Disease? Gingivitis vs. Periodontitis
Gum disease is a bacterial infection of the tissues that support your teeth. Dental plaque (biofilm) accumulates along and below the gumline; if it is not removed, the body's inflammatory response gradually damages the gum and the bone that hold teeth in place.
Gingivitis: the reversible stage
Gingivitis is inflammation limited to the gum tissue. Typical signs are redness, swelling and bleeding on brushing. At this stage no permanent support has been lost, and gingivitis can generally be resolved with professional cleaning and improved daily plaque control.
Periodontitis: when bone is involved
If inflammation persists, it can progress to periodontitis, in which the bone and ligament supporting the teeth are progressively destroyed. Pockets form between the gum and tooth, teeth may loosen or drift, and in advanced cases teeth can be lost. Under the classification adopted by the American Academy of Periodontology and the European Federation of Periodontology (AAP/EFP, 2018), periodontitis is staged from I (initial) to IV (advanced) and graded by its likely rate of progression. Bone that has been lost to periodontitis does not grow back on its own — which is why the stage at which treatment starts matters so much.
Signs You Should Not Ignore
Consider a periodontal evaluation if you notice any of the following: gums that bleed during brushing or flossing; red, swollen or tender gums; persistent bad breath or a bad taste; gums receding so teeth look longer; new gaps appearing between teeth; loose teeth or a changing bite; discomfort when chewing; or pus between the teeth and gums. Smoking raises the risk of periodontitis and can impair healing after treatment. It can also mask gum bleeding while the disease continues to progress, so "no bleeding" alone is not reassurance.
If you have severe pain or swelling right now, see our separate guide to emergency dental care in Tokyo for tourists (https://rodin-dental.jp/en/insights/emergency-dental-care-tokyo-tourists).
Why This Matters for Expats and Visitors in Japan
Periodontal care depends on continuity: accurate baseline records, a treatment sequence, and regular maintenance afterwards. For international patients, two practical barriers often interrupt that continuity — language and system differences. Explaining pocket depths, treatment options and consent details is difficult through a language barrier, and patients who cannot fully understand their diagnosis often postpone care. If you have recently relocated, your previous dentist's records may also be hard to transfer.
An English-speaking clinic removes the first barrier: examination results, treatment plans and consent forms are explained in English, so you can make informed decisions. For how the Japanese dental system works for foreign residents — including how public insurance does and does not apply — see our guides to dental insurance for expats in Japan (https://rodin-dental.jp/en/insights/dental-insurance-for-expats-in-japan) and finding an English-speaking dentist in Tokyo (https://rodin-dental.jp/en/english-speaking-dentist).
Worried about your gums? You can ask us first, in English.
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How Periodontal Treatment Works
Periodontal therapy follows a stepwise sequence. Skipping steps rarely saves time, because each stage is re-evaluated before the next.
Step 1: Examination and diagnosis
A periodontal examination typically includes probing (measuring pocket depths around each tooth), assessment of bleeding, recession and tooth mobility, and imaging. X-rays show the bone level around each tooth; where more detail is needed — for example before periodontal surgery — a CT scan may be recommended. At your first visit you will receive an explanation of your current condition and a written treatment plan. First-time patients can read what to expect at a first dental consultation in Tokyo (https://rodin-dental.jp/en/insights/first-dental-consultation-tokyo).
Step 2: Non-surgical (initial) therapy
The foundation of periodontal treatment is professional removal of plaque and calculus (tartar):
- Professional mechanical tooth cleaning (PMTC) and biofilm management — removal of biofilm and staining above and around the gumline. Our hygiene appointments use the AIRFLOW® Guided Biofilm Therapy protocol alongside conventional instruments.
- Scaling and root planing (SRP) — deep cleaning below the gumline, usually performed under local anesthesia, section by section across several visits.
- Oral hygiene coaching — daily plaque control is the single factor patients themselves control; without it, professional cleaning alone cannot stabilize the disease.
Several weeks after initial therapy, pockets are re-measured to assess the response.
Step 3: Surgical therapy (when needed)
If deep pockets persist after non-surgical therapy, periodontal surgery may be discussed. Options can include flap surgery (accessing root surfaces under direct vision) and, in selected sites, regenerative procedures. Whether surgery is appropriate depends on the stage of disease, the tooth's strategic value, your general health and your preferences — it is always a case-by-case decision made after re-evaluation.
Step 4: Maintenance (supportive periodontal therapy)
Periodontitis is managed, not "cured once." After active treatment, maintenance visits — typically every 3 to 6 months depending on risk — are what protect the result over years. Patients who skip maintenance have a higher likelihood of recurrence.
If a tooth is already beyond saving, replacement options are covered in our guide to missing tooth replacement options (https://rodin-dental.jp/en/insights/missing-tooth-replacement-options).
Costs of Periodontal Care at RODIN
RODIN DENTAL OFFICE TOKYO is a private (self-pay) clinic: treatment is not covered by Japanese public health insurance, and fees are paid out of pocket. All prices below are in Japanese yen and include consumption tax.
| Item | Fee (tax incl.) |
|---|---|
| Initial examination (includes periodontal assessment) | ¥19,900 |
| First Visit Cleaning Package (comprehensive check-up, imaging/X-rays, gum test, PMTC, AIRFLOW® GBT) | ¥39,900 |
| PMTC + EMS AIRFLOW® cleaning (existing patients) | ¥19,900 |
| X-ray imaging | from ¥5,900 |
| Dual-arch CT scan | from ¥15,900 |
| Scaling and root planing | Written estimate after examination; no fixed amount in the published fee schedule |
| Periodontal surgery | Written estimate after examination; no fixed amount in the published fee schedule |
Because the extent of periodontal treatment depends entirely on how many teeth and sites are involved, deep-cleaning and surgical fees are quoted individually after your examination, with a written estimate before any treatment begins. Current fees are listed on our fees page (https://rodin-dental.jp/en/fees).
If you have private or international health insurance, some plans reimburse periodontal treatment; we can provide itemized English receipts and documentation for claims. See dental insurance for expats in Japan (https://rodin-dental.jp/en/insights/dental-insurance-for-expats-in-japan) for details.
Want a written estimate before committing? Book an examination or send us your questions first.
How Many Visits Will It Take?
As a general guide — your individual plan may differ:
- Gingivitis / early disease: often 1–3 visits (examination, professional cleaning, hygiene review), then regular maintenance.
- Moderate periodontitis: commonly 4–8 visits over roughly 2–4 months for examination, SRP by section and re-evaluation, followed by maintenance every 3–6 months.
- Advanced periodontitis: initial therapy as above, plus re-evaluation and possible surgical phases; active treatment can extend over 6 months or more before moving to maintenance.
For patients on a limited schedule in Tokyo, we can sequence appointments efficiently — tell us your timeline when you book.
Risks, Side Effects and Important Notes
Periodontal treatment is routine, but you should understand the following before starting:
- After scaling and root planing, temporary tooth sensitivity to cold, gum tenderness and minor bleeding are common for a few days.
- As inflamed gums heal and shrink, gum recession can become visible, teeth may appear longer, and small gaps may appear between teeth. This is a consequence of resolving swelling in tissue that was diseased.
- Local anesthesia carries its usual small risks, such as temporary numbness and, rarely, allergic reaction.
- Surgical treatment additionally involves post-operative discomfort, swelling and a healing period, which will be explained in detail during consent.
- Results vary between individuals. Response to treatment depends on factors including smoking, diabetes and daily plaque control, and treatment cannot guarantee that all teeth will be retained. Bone already lost to periodontitis does not regrow on its own.
- Maintenance is not optional. Without supportive care, periodontitis frequently recurs.
We explain all of the above in English, in writing, before any treatment begins.
Periodontal Care in English at RODIN DENTAL OFFICE TOKYO
RODIN DENTAL OFFICE TOKYO provides dental care in English (https://rodin-dental.jp/en/english-speaking-dentist) for international patients, from examination and diagnosis through active periodontal therapy and long-term maintenance. Consultations, written treatment plans, estimates and consent documents are provided in English, and our location in central Tokyo (https://rodin-dental.jp/en/access) is easy to reach. If you are not sure whether your symptoms need attention, you can request a consultation (https://rodin-dental.jp/en/consultation) and ask before booking treatment. Common questions are also answered on our FAQ page (https://rodin-dental.jp/en/faq).
Ready to have your gums checked?
Clinical sources
American Academy of Periodontology: Gum Disease Information (https://www.perio.org/for-patients/gum-disease-information/)
RODIN fees: published fee schedule (https://rodin-dental.jp/en/fees), checked 14 October 2026. Treatment selection and individual costs are confirmed after examination.
