All-on-4 Dental Implants in Korea
A fixed full arch of teeth on four implants, for patients missing most or all teeth. Planned with 3D CT, placed with IV sleep sedation if you wish, and made in our in-house lab.
- Since 2002
- 13 dentists
- In-house lab
- EN · 中文 · 日本語
What are All-on-4 dental implants?
All-on-4 is a full-arch treatment where four implants support a fixed bridge of 10 to 14 teeth. The two back implants are tilted to use existing bone, which often avoids bone grafting. At Gangnam One Day Dental Clinic, a fixed temporary arch can usually be attached on surgery day, and the final arch follows after typically 3 to 6 months.
Reviewed by Dr. Kim Jin-hwan , Chief Director · Updated October 5, 2026
How All-on-4 works
Two implants are placed straight in the front of the jaw and two are tilted at the back. Tilting lets longer implants anchor in denser front bone and avoids the sinus in the upper jaw and the nerve in the lower jaw. A rigid bridge then links all four implants so they share the bite load.
Remaining failing teeth are usually removed during the same surgery. Our published cases include 8 implants placed in 35 to 40 minutes and 15 implants in 1 hour, though surgery time always depends on difficulty.
Four implants or more?
Four implants is a minimum, not a rule. Where bone is soft, the arch is wide, or bite forces are high, the dentist may recommend 5 or 6 implants per arch for extra support. This is decided from your 3D CT and bite, not from a package.
If you prefer something removable or need a lower-cost option, an implant-supported denture on 2 to 4 implants is an alternative. If many of your own teeth can still be saved, a full-mouth reconstruction that mixes crowns and implants may suit you better.
- 4 implants: enough bone in the front jaw, average bite force
- 5–6 implants: soft bone, wide arch, strong bite or grinding
- Overdenture on 2–4 implants: removable option, easier cleaning
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 opinionProtecting the bite on a full arch
A full arch on implants has no natural tooth ligament to cushion bite forces, so uneven contacts can chip the teeth or overload one implant. Chief Director Dr. Kim Jin-hwan, author of a handbook chapter on controlling the occlusion of implant-supported restorations, uses T-Scan Novus to measure and balance the bite.
The final arch is made in our Oneday Lab, usually from zirconia or a reinforced framework with ceramic teeth. See how timing works on our same-day implants page.
| All-on-4 | All-on-6 / fixed bridge | Implant overdenture | Conventional denture | |
|---|---|---|---|---|
| Implants per arch | 4 | 6–8 | 2–4 | 0 |
| Fixed or removable | Fixed | Fixed | Removable | Removable |
| Bone graft needed | Often avoided | More likely | Sometimes | No |
| Covers the palate | No | No | Usually not (upper may) | Yes (upper) |
| Chewing ability | High | High | Good | Limited |
How it works at Oneday Dental
- Before travel
CT or panoramic review
Send a CT or panoramic X-ray on WhatsApp. The dentist outlines whether All-on-4 is feasible and how many trips you need.
- Day 1
3D CT, scans and design
3D CT, intraoral scans and photos are used to plan implant angles and design the temporary arch.
- Day 2
Extractions and implants
Failing teeth are removed and the implants placed, with IV sleep sedation if you choose.
- Day 2–3
Fixed temporary arch
If the implants are stable, a fixed temporary arch made in Oneday Lab is attached.
- 3–6 months
Final arch
The final arch is fitted and the bite balanced with T-Scan Novus.
Things to know before you decide
- Very little bone even in the front jaw may require grafting or a different approach.
- The temporary arch needs a soft diet for about 2–3 months; chewing hard food risks implant failure.
- Heavy grinding can fracture the prosthesis; a night guard is often recommended.
- Cleaning under a fixed arch needs a water flosser or special brushes, and check-ups every 6 months.
- Smoking and uncontrolled diabetes raise the risk of implant failure.
Experience you can check
- 2002Founded in Gangnam — 24 years
- 13Dentists in 5 departments
- 3Clinic buildings, 1,570 m²
- 0.01 mmT-Scan bite-force detail
Vice President, Korean Academy of Stomatognathic Function & Occlusion · author on T-Scan implant occlusion (IGI Global)
All-on-4 Implants: common questions
Is All-on-4 suitable for me if I already wear dentures?
How many trips to Korea does All-on-4 need?
How much does All-on-4 cost in Korea?
Can I be asleep during All-on-4 surgery?
How long do All-on-4 teeth last?
Which is better, All-on-4 or All-on-6?
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