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Dental treatments

All-on-4 dental implants

The All-on-4 treatment is intended for patients who have lost all the teeth of a jaw, or whose remaining teeth cannot be preserved. Four implants are planned to support a complete fixed prosthesis, using the areas where bone is most available.

Duration
Surgery often 2 to 4 hours; complete treatment over several months.
Recovery
Swelling, tenderness and difficulty chewing are possible for several days.
Results
Provisional prosthesis possible depending on the stability obtained; final prosthesis after healing.

All-on-4: assessment, loading, maintenance and risks

The benefits

  • Complete fixed prosthesis supported by four planned implants
  • Use of the most favourable bone areas of the jaw
  • Prosthesis custom-designed for the treated jaw
  • Force distribution designed according to the bone and the occlusion
  • Can improve chewing and stability compared with a removable denture
  • Aesthetics, phonetics and function adapted to the individual project
  • Rapid provisional prosthesis possible only in selected cases
  • Prosthetic maintenance and repairs possible when the system is followed up

Contraindications

  • Infection, cavities or active periodontal disease to treat before surgery
  • Insufficient bone volume or quality possibly requiring a graft or a different strategy
  • Uncontrolled diabetes or unstabilised general disease
  • Smoking, which increases the risk of failure.

The treatment process

  1. Clinical, bone and prosthetic assessment

    Examination of the teeth and gums, cone beam scan, study of the bone volume, the sinuses, the nerves and the occlusion. Preservable teeth and possible infections are evaluated before the decision.

  2. Planning of the implants and the prosthesis

    The plan combines the implant positions, the shape of the prosthesis, lip support, the occlusion and the areas to keep accessible for cleaning.

  3. Placement of the four planned implants

    Four implants are placed according to the surgical and prosthetic plan, in the most favourable bone areas. Their actual position can be adapted during the operation if the anatomy requires it.

  4. Provisional prosthesis when conditions allow

    A fixed provisional prosthesis can be installed if sufficient stability is obtained and if the chewing constraints can be controlled. Otherwise, a transitional solution is preferred.

  5. Healing, check-ups and final prosthesis

    The implants and tissues are monitored during healing. After osseointegration, impressions and try-ins allow the final prosthesis to be made. Daily cleaning under the prosthesis remains essential.

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