Prosthetics on implants using the All-on-4 and All-on-6 methods

Modern “All‑on‑4” and All‑on‑6 implantation is an effective method of restoring the dental arch using four or six implants that serve as support elements. These implants have a titanium base that integrates with the jawbone tissue, providing reliable fixation. The price for All‑on‑4 depends on the specifics of the treatment and each individual case.

In modern dentistry, these methods are part of the Immediate Load concept (“immediate loading”), which allows the installed implants to fully sustain hewing load as early as the second day after the procedure. The cost of this solution is more advantageous compared to basal prosthetics.

At Gallant Dental Clinic, experienced implantologists select the optimal All‑on‑4 or All‑on‑6 implantation method based on bone condition, jaw structure, and other physiological characteristics of the patient. We strictly follow treatment protocols, which guarantees positive results even in complex clinical cases.

Features of the implantation method

All‑on‑4
The All‑on‑4 implantation system is used for complete restoration of the dental arch in cases of multiple or total edentulism. It is suitable for patients with sufficient bone volume and allows the installation of a bridge on four implants immediately after tooth extraction or within a year after. 

The implantation process uses titanium screws: two in the anterior zone (incisors) and two in the posterior regions (5th or 6th tooth). To ensure anatomically correct load distribution, anterior implants are placed vertically, while posterior ones are angled. 

The procedure takes place in one visit: the doctor places the titanium bases, sutures the incision, and installs abutments for crown fixation. As a result, the patient receives a natural-looking dental arch, and the cost of this method is more economical than conventional single-tooth prosthetics.

All‑on‑6
The All‑on‑6 method is used for total prosthetics when there is significant tooth loss and moderate bone atrophy. Using six implants provides more even distribution of masticatory load and increases fixation reliability by 2–3 times compared to All‑on‑4. 

Unlike the “All‑on‑4” system, the All‑on‑6 technique is performed without incising the gums. Screws are placed in the strongest zones of the jaw: two in the front, two in the canine region, and two in the posterior sections. Built-in movable abutments simplify prosthetic fixation, making them more comfortable for the patient. 

Although All‑on‑6 costs slightly more due to the higher number of implants, its reliability and longevity make it an excellent choice for restoring full dental function.

Stages of prosthetic placement with the All‑on‑4 and All‑on‑6 methods

At our clinic, implant prosthetics using All‑on‑4 and All‑on‑6 are performed according to a clearly defined protocol, which includes:

1. Initial consultation. A prosthodontist and implant surgeon assess the dentoalveolar system and determine the optimal treatment scheme.
2. Diagnostics and planning. The patient undergoes CT imaging, X‑rays, or panoramic scans. Based on the data, the doctor determines implant placement locations and schedules the procedure.
3. Oral preparation. If there are damaged teeth or roots, they are removed immediately before implant placement.
4. Implantation. Four implants (All‑on‑4) or six implants (All‑on‑6) are placed to support the future prosthesis.
5. Temporary prosthetics. A provisional prosthesis of 10–12 teeth is attached to the implants, aiding adaptation and accelerating osseointegration.
6. Manufacture and placement of the permanent prosthesis. After three months (once implants have fully integrated), a permanent metal-ceramic or metal-plastic prosthesis is placed. Its service life can reach 10 years.

The cost for All‑on‑6 or All‑on‑4 depends on clinical conditions, jaw anatomy, and the materials and medications chosen.

Indications and contraindications

All‑on‑4 or All‑on‑6 implantation is indicated when:

• There is partial tooth loss (edentulism), and remaining teeth are too weak or damaged to support a bridge.
• There is complete edentulism with pronounced jawbone atrophy due to natural resorption.
• Inflammatory gum diseases such as periodontitis are present.
• Teeth are completely destroyed or highly mobile.
• Sinus lift or bone grafting is impossible or declined.

The choice of method depends on multiple factors, primarily bone volume and density.

For All‑on‑4, a larger bone volume is needed: minimum bone width of 5 mm and bone height of at least 10 mm in the upper jaw and 8 mm in the lower jaw. Bone density must also meet minimum requirements. All‑on‑6 has less stringent requirements, as six fixation points distribute loads evenly and allow for shorter implants.
Final treatment decisions are made by the doctor, considering all patient factors to ensure the best outcome.

Advantages of this prosthetic technique

The All‑on‑6 technology is well recognized among leading clinics and patients. Key advantages include:

The method allows implantation into deeper jaw regions with minimal bone resorption, eliminating the need for additional bone augmentation—particularly beneficial in the upper jaw with significant atrophy or proximity to sinuses. The use of 25–30 mm angled implants fixed into the zygomatic bone helps overcome this challenge.

Reliability and effectiveness

Optimal fixation methods deliver high primary stability. Special surface treatments stimulate bone regeneration, leading to implant success rates of 98–99%.

Natural aesthetics

During healing, a removable acrylic temporary prosthesis ensures an aesthetic smile. Acrylic gingiva masks help correct visual imperfections.

Rapid recovery of chewing function

Patients can begin eating on the day of surgery, gradually increasing bite strength. Full function is restored within 2–3 weeks.

Gentleness and minimal risks

The surgery uses a surgical guide to accurately position implants and reduce trauma.