All-on-4 dental implants:
the full guide.

01 · THE CONCEPT

How does All-on-4 work?

Dental implants are artificial tooth-root replacements placed into the jawbone. They can support a crown, a bridge or a denture. In an All-on-4 plan, four implants support a restoration that replaces all the teeth in one arch.

The two front implants are commonly placed in a more upright position. The back implants may be angled so the clinician can use available bone, avoid certain anatomical structures and extend support further back. The final positions must be driven by both the available bone and the planned teeth.

Fixed does not mean maintenance-free

The bridge is screwed or otherwise secured to the implants and is not taken out by the patient. A clinician can remove it when professional maintenance or repair is required. Because the bridge sits above the gums, you need to clean the space beneath it every day.

02 · PATIENT SELECTION

Who might be suitable?

All-on-4 may be discussed when all teeth are already missing, when a full denture is unstable, or when the remaining teeth have such a poor prognosis that preserving them is no longer predictable. Age alone does not decide suitability; overall health, bone, gum condition, hygiene and restorative factors matter.

Factors a clinician needs to assess

• Current medical conditions and previous surgery
• All medicines, supplements and allergies
• Smoking, vaping and other nicotine use
• Active tooth decay, infection or gum disease
• Bone volume and the position of nerves and sinuses
• Smile line, speech, lip support and restorative space
• Bite forces, clenching, grinding and previous breakages
• Ability and willingness to clean and attend maintenance

When treatment may need to change or wait

Uncontrolled medical conditions, active gum disease, poor plaque control, unsuitable bone, heavy smoking or medicines that affect healing can increase risk. Some people need disease stabilisation, medical liaison, smoking cessation, grafting or an alternative design before implants are considered.

03 · PLANNING

Diagnostics are more than a scan

A panoramic X-ray may help an initial review, but three- dimensional CBCT imaging is commonly used to examine bone and nearby anatomical structures. Imaging is only one part of the process.

04 · THE FIRST CLINICAL PHASE

What happens on surgery day?

The sequence depends on your plan. Teeth with a hopeless prognosis may be removed, infected tissue managed and the implant sites prepared. The implants are placed into planned positions and their initial stability is measured. Additional procedures may be required in some cases.

Can temporary teeth be fitted immediately?

Sometimes. “Immediate loading” means connecting a temporary restoration soon after implant placement. It depends on implant stability, bone quality, the distribution of the implants, bite, medical factors and the ability to protect the restoration during healing.

The temporary bridge is not the finished bridge. It allows the team to evaluate comfort, appearance, speech and function while the implants heal, but it may have dietary and functional restrictions.

05 · BETWEEN VISITS

The healing period

Osseointegration describes the biological connection that develops between implant surface and bone. This process takes time. Your exact healing schedule depends on site conditions, bone, implant stability, health and the restorative plan.

Your responsibilities during healing

• Follow the prescribed medication instructions precisely
• Keep to the recommended food consistency and avoid overload
• Clean as instructed without traumatising surgical areas
• Avoid smoking and follow individual nicotine advice
• Report increasing pain, swelling, bleeding or bridge movement
• Attend all agreed reviews in Istanbul or locally

A temporary bridge can feel secure, but that does not mean the implants have finished integrating. Biting hard foods or ignoring a loose component may place the healing implants at risk.

06 · DEFINITIVE RESTORATION

Planning the final bridge

After the clinician confirms that the implants and tissues are ready, new records may be taken. The team checks how the teeth meet, the position of the smile, speech, lip support and whether you can clean beneath the design.

Common material discussions

No single material is automatically “best.” Ask which material is being proposed, what supports it, how it is repaired, what maintenance it needs and what happens if a component fractures.

07 · INFORMED CONSENT

Risks, limitations and complications

Implant treatment is surgery and no outcome can be guaranteed. General and case-specific risks should be explained in a consent discussion that you can understand.

Bleeding gums, swelling, bad taste, persistent pain, movement or a change in your bite should not be ignored. Seek dental advice promptly.

08 · LONG-TERM CARE

Cleaning and maintaining All-on-4 implants

Plaque can collect around implant components and beneath the bridge. Good daily cleaning plus professional maintenance helps prevent peri-implant disease and allows problems to be identified early.

A maintenance plan should include

• A demonstrated home-cleaning method for your bridge design
• Appropriate brushes, floss or water-flossing advice
• Professional hygiene at an agreed frequency
• Review of gum health, implant stability and bite
• Radiographs when clinically indicated
• A route for repair and component replacement

Implant parts and the bridge do not necessarily have the same lifespan. Teeth and surface materials can wear; screws or components can loosen; the bridge may eventually require repair or replacement.

09 · ALTERNATIVES

All-on-4 compared with other options

10 · BEFORE YOU COMMIT

Questions to ask the clinic

1. Who is responsible for my diagnosis and treatment plan?
2. Which teeth, if any, could reasonably be preserved?
3. Why is All-on-4 preferred over the alternatives?
4. Which implant system and components are proposed?
5. What could prevent fixed temporary teeth on surgery day?
6. What are the temporary and final bridge materials?
7. What is included, excluded and subject to change?
8. What maintenance is needed once I return to the UK?
9. What records and implant information will I receive?
10. Who should I contact urgently, and who pays for repairs?