In patients with sinus sagging in the posterior region of the upper jaw, sinus lifting surgery must be performed in order to apply implants to the relevant area. In All on four treatment, implants are placed at an angle without this surgery and the treatment is completed in front. Thus, there is no need for additional surgical procedure.

In cases where there is insufficient bone width or height in the posterior regions of the lower and upper jaw, implants cannot be placed in the posterior regions. In such cases, all on four treatment is applied and treatment is performed without surgical procedure in the areas where bone resorption is excessive in the posterior regions.

In short, since additional surgical procedures applied in classical implant treatments are not performed, the patient can regain his teeth more easily and quickly.