Periodontics · Gangnam, Seoul

Periodontics in Seoul: Gum Disease Treatment in Gangnam

Bleeding, swollen or receding gums are treatable. Our periodontics department measures your gums, explains the stage of disease, and plans cleaning, deep cleaning or surgery only where it is needed.

  • Since 2002
  • 13 dentists
  • In-house lab
  • EN · 中文 · 日本語
Oneday Dental Clinic's three buildings on Gangnam-daero, Seoul
3 clinic buildings in Gangnam Yeoksam-dong · implants, lab & orthodontics

What does a periodontist treat?

A periodontist treats the gums and bone that hold teeth in place: gingivitis, periodontitis, bleeding gums, deep pockets, gum recession and loose teeth caused by bone loss. At Gangnam One Day Dental Clinic, periodontics is one of five departments, and treatment usually starts with pocket measurements and X-rays, followed by scaling and root planing before any surgery is considered.

Reviewed by Dr. Kim Jin-hwan , Chief Director · Updated October 5, 2026

Gum disease in stages: from gingivitis to periodontitis

Gum disease starts as gingivitis: plaque at the gumline makes the gums red, swollen and prone to bleeding when you brush. At this stage there is no bone loss and a thorough professional dental cleaning plus better home care usually reverses it.

If plaque hardens into tartar below the gumline, the infection can progress to periodontitis. The gum detaches from the tooth, pockets deepen beyond about 4 mm, and the supporting bone is slowly lost. Teeth may then drift, feel loose or look longer as the gums recede.

  • Healthy gum pocket: typically 1–3 mm
  • Early to moderate periodontitis: typically 4–6 mm pockets
  • Advanced periodontitis: pockets of 6 mm or more, often with mobility

Periodontal treatments we provide

Treatment is matched to the stage of disease. Most patients need non-surgical therapy first. Surgery, gum recession grafting or laser-assisted gum treatment is considered only when pockets or recession persist after healing.

Our periodontics team works alongside the oral surgery, prosthodontics and implant teams in the same clinic, so a patient with failing teeth can have gum stabilisation and later dental implants planned in one place.

  • Scaling and polishing for gingivitis and prevention
  • Scaling and root planing (deep cleaning) under local anaesthetic
  • Periodontal maintenance visits every 3–6 months
  • Gum recession treatment, including desensitising, bonding and gum grafting
  • Laser-assisted gum treatment with a water-drop (Waterlase-type) laser
  • Assessment of bone loss and loose teeth with X-rays and 3D CT

Not sure if this is right for you? Send a photo or X-ray — a dentist replies on WhatsApp in English, Chinese or Japanese.

Get a free opinion

Why gum health comes before implants, veneers or braces

Crowns, veneers, braces and implants all depend on healthy gums and bone. Active gum inflammation increases the risk of bleeding gumlines around veneers, bone loss around implants (peri-implantitis) and faster tooth movement during orthodontics.

For this reason our dentists often stabilise the gums first, then move on to cosmetic or implant work. International patients can send recent X-rays and photos on WhatsApp so the team can say in advance whether gum therapy is likely to be needed before other treatment.

Gingivitis vs periodontitis at a glance
Gingivitis Periodontitis
Bleeding gums Common Common
Bone loss None Yes, mild to severe
Pocket depth Typically 1–3 mm Typically 4 mm or more
Reversible Yes, with cleaning and home care Can be controlled; lost bone rarely regrows fully
Usual treatment Scaling and polishing Scaling and root planing, then maintenance or surgery
Visits Usually 1 Usually 2–4, plus re-check
Step by step

How it works at Oneday Dental

  1. Before you travel

    Send X-rays and photos

    Share recent X-rays, gum photos and your symptoms on WhatsApp. The team replies with what treatment is likely and how many visits to plan for.

  2. Visit 1

    Periodontal examination

    Pocket depths are measured around every tooth, bleeding points are recorded and X-rays or 3D CT show the bone level. You receive a stage-based plan.

  3. Visits 2–4

    Deep cleaning

    Scaling and root planing under local anaesthetic, usually one or two quadrants per visit, removing tartar and bacteria from root surfaces.

  4. 4–8 weeks later

    Re-evaluation

    Pockets are re-measured. Most shallow and moderate pockets improve; persistent deep sites may need laser-assisted or surgical treatment.

  5. Every 3–6 months

    Maintenance

    Regular periodontal maintenance cleanings keep bacteria under control. Your home-care routine is adjusted at each visit.

Watch

Hear it from our dentists

Short answers to real patient questions from the Oneday Dental YouTube channel.

Korean audio

▶ More on @onedaydent

Things to know before you decide

  • Gums often shrink slightly after deep cleaning as swelling resolves, which can make teeth look longer or feel more sensitive for a few weeks.
  • Bone already lost to periodontitis usually does not regrow fully; treatment aims to stop further loss.
  • Smoking and poorly controlled diabetes slow healing and reduce how well pockets respond.
  • Teeth with very advanced bone loss and severe mobility may not be saveable; the dentist will discuss extraction and replacement options honestly.
Why patients trust Oneday Dental

Experience you can check

  • 2002
    Founded in Gangnam — 24 years
  • 13
    Dentists in 5 departments
  • 3
    Clinic buildings, 1,570 m²
  • 0.01 mm
    T-Scan bite-force detail
Medically reviewed Dr. Kim Jin-hwan — Chief Director

Vice President, Korean Academy of Stomatognathic Function & Occlusion · author on T-Scan implant occlusion (IGI Global)

Meet the team
FAQ

Periodontics & Gum Care: common questions

Is periodontal deep cleaning painful?
Scaling and root planing is done under local anaesthetic, so most patients feel pressure and vibration rather than pain. The gums are usually tender for one to three days afterwards, and teeth can be sensitive to cold for a few weeks. Over-the-counter pain relief is typically enough.
Can gum disease be cured?
Gingivitis can be reversed completely with professional cleaning and good home care. Periodontitis is a chronic condition: treatment can stop it progressing and reduce pockets, but bone that has been lost rarely returns fully. Regular maintenance every three to six months keeps it stable for most patients.
How many visits does periodontal treatment take?
Mild cases may need a single cleaning visit. Periodontitis usually needs two to four deep-cleaning visits, followed by a re-check four to eight weeks later. The dentist confirms the number of visits after measuring your pockets and reviewing X-rays.
Can I have gum treatment during a short trip to Seoul?
Often yes. Deep cleaning can sometimes be grouped into consecutive days, and the re-evaluation can be done on a later trip or by sending photos. Send your X-rays on WhatsApp before booking flights so the team can suggest a realistic schedule.
Why do my gums bleed when I brush?
Bleeding when brushing is the most common early sign of gum inflammation caused by plaque. It is not normal and should not be ignored. A dental examination shows whether it is gingivitis, which responds to cleaning, or periodontitis with pocket formation and bone loss.
Who will treat my gums?
Periodontal care at Gangnam One Day Dental Clinic is provided by the periodontics department, which includes Dr. Lee Seung-beom and Dr. Lee Dong-won. Complex cases can be reviewed together with the implant, oral surgery and prosthodontic teams in the same clinic.

Get a dentist's opinion on WhatsApp

Send your question, photos or X-ray. We reply with a plan, timeline and estimate in English, Chinese, Japanese or Korean.

💬 WhatsApp +82-10-5298-2875 📍 Yeoksam-dong, Gangnam, Seoul