Guide to the Gum Maintenance Interval: Regular Care After Gum Treatment to Prevent Recurrence

The gum maintenance interval depends on the condition of the gums. The Korea Disease Control and Prevention Agency (KDCA, 질병관리청) recommends scaling once a year even without periodontal disease, and a checkup and scaling every 3 to 6 months for people who have had periodontal treatment or who form tartar easily. In Korea, health insurance covers scaling once a year for ages 19 and over, so the cost of more frequent care depends on the treatment plan and is worth confirming in advance.

Published 2026-11-08 · Updated 2026-11-08 · DentalStatics editorial team

Key facts

When there is no periodontal disease	Scaling once a year is recommended (source: Korea Disease Control and Prevention Agency (KDCA, 질병관리청) National Health Information Portal)
Maintenance after periodontal treatment	Scaling once every 3 to 6 months (source: KDCA National Health Information Portal)
When severe and hard to manage	Repeated removal every 3 months may be needed (source: KDCA National Health Information Portal)
Bacterial regrowth	With poor oral hygiene, bacteria in plaque can increase again within 1 to 2 months (source: KDCA National Health Information Portal)
Cleaning between teeth	Use floss, interdental brushes, or an oral irrigator at least once a day (source: KDCA National Health Information Portal)
Scaling under health insurance	Age 19 and over, once a year (source: National Health Insurance Service (NHIS, 국민건강보험공단))

Why keep going after gum treatment has ended?

Even when periodontitis treatment removes tartar, plaque builds up again every day. According to the KDCA's tartar removal guidance, in people with poor oral hygiene the bacteria in plaque can multiply again within 1 to 2 months after treatment, so the benefit of gum treatment can disappear faster than expected.

Sites where pockets were deep are hard for a toothbrush to reach at home and tend to relapse. The KDCA names regular dental visits as the most effective way to prevent periodontal disease from progressing.

The KDCA notes that in 2024 health insurance statistics, gingivitis and periodontal disease ranked first among common outpatient diagnoses. Because the disease is this common and often recurs, care at a set interval does more to protect the teeth than one round of intensive treatment.

How is the maintenance interval decided?

The dentist adjusts the interval based on the pocket depth and number of bleeding sites measured at the post-treatment recheck, along with risk factors such as smoking and diabetes. If results are stable over several visits the interval is lengthened, and if they worsen it is shortened. Based on KDCA material, it is roughly as follows.

Adults without gum disease: scaling once a year
After periodontal treatment, or people who form tartar easily: every 3 to 6 months
People with severe periodontal disease who have difficulty with home care: every 3 months

What is done at a maintenance visit?

Pocket depth and gum bleeding are measured again and compared with the time just after treatment, and new tartar above and below the gumline is removed. X-rays are taken if changes in bone height need to be checked.

Oral hygiene instruction that points out areas where brushing and cleaning between the teeth are lacking is also an important part of regular care. If a site has relapsed, root planing may be done again at that site only.

Re-measuring pocket depth and comparing with the record just after treatment
Checking gum bleeding sites and tooth mobility
Removing new tartar above and below the gumline
Pointing out areas where brushing and interdental cleaning fall short
Checking bone height by X-ray when needed

How should I care for the gums at home?

Brush with the bristles pressed against the gums, starting from where tooth and gum meet, and clean between the teeth with floss or an interdental brush at least once a day. The KDCA advises using floss for the spaces between teeth and the gum gap, and interdental brushes for wider spaces between teeth.

The KDCA presents proper brushing at least three times a day as the basis of prevention. Mouthwash is only a supplement, and tartar that has already hardened cannot be removed at home, so the key is to visit the dentist on the set dates.

What does regular maintenance cost?

Scaling where treatment ends with tartar removal alone is covered by health insurance once a year for ages 19 and over in Korea, and the second one in the same year is not covered. With a 3 to 6 month cycle you visit 2 to 4 times a year, so check with the dentist in advance whether the other visits are covered.

At stages where periodontal treatment continues, the coverage criteria may differ for each procedure. The outpatient copayment for covered items is 30% at a dental clinic and 40% at a dental hospital in a dong area.

If you postpone maintenance dates, tartar can harden again and pockets can deepen, widening the scope of treatment at the next visit. As a result cost and number of visits can rise, so keeping to the schedule is the way to reduce the burden.

Common myths and facts

Myth: Now that gum treatment is finished, I only need to go once a year.

For people who have had periodontal treatment, a checkup and scaling every 3 to 6 months are recommended. The interval is adjusted by the dentist based on recheck results.

Myth: If I gargle every day, I do not need scaling.

Mouthwash is only a supplement, and tartar that has already hardened can be removed only with dental instruments.

Frequently asked questions

How do I know whether to go every 3 months or every 6 months?

The dentist decides based on the post-treatment recheck results, bleeding sites, and whether you smoke or have diabetes. If the results of several maintenance visits are stable, the interval may be lengthened. Conversely, if bleeding sites increase or pockets deepen again, it is shortened.

What happens if I skip maintenance?

Plaque builds up again and inflammation recurs, and if pockets deepen, root planing or gum surgery may be needed again. If you have missed an appointment, it is best to book a checkup as soon as possible rather than wait for the next scheduled one.

Should I follow the same interval if I have an implant?

The KDCA explains that smoking and poor oral hygiene can cause inflammation in the gums and bone around an implant. Have implants checked regularly along with natural teeth, and decide the interval with your dentist.

How do I choose the size of an interdental brush?

It must fit the size of the gap between teeth so that it removes plaque without hurting the gums. Gaps can differ from site to site, so ask the dentist to recommend the right sizes at a maintenance visit.

Are X-rays taken at every regular checkup?

Not every time; they are taken when changes in the bone need to be checked. The dentist decides the interval between X-rays based on the condition of the gums.

References

Korean version →