The All-on-Four implant treatment is one of the most preferred methods for fixed prostheses in completely edentulous mouths, especially in cases with bone deficiency in the posterior regions. In this treatment, a fixed prosthesis is placed on four implants, allowing patients to regain their teeth in a short time. One of the most frequently asked questions is how long this treatment lasts.
Although a specific lifespan is not assigned to All-on-Four treatment, it is considered normal for certain adjustments or replacements to be needed every 15–20 years. However, with proper care and regular check-ups, this period can be much longer. Since implants are made of titanium, they can theoretically last for many years. The main determining factor is the correct use of the prosthesis and the maintenance of healthy bone and gum tissues around the implants. Neglecting daily hygiene, skipping check-ups, or having habits such as smoking and alcohol consumption can shorten this duration.
Therefore, the lifespan of an All-on-Four system cannot be defined with a precise number. It varies for each patient and depends entirely on oral hygiene, general health status, and regular dental check-ups.
Which Factors Affect the Lifespan of All-on-Four Implants?
- Bone and gum health: Adequate and healthy bone structure is essential for implant stability. Untreated bone loss shortens implant lifespan. Gum health is equally important; unhealthy gums can lead to inflammation around implants.
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Oral hygiene: Poor brushing habits, not using interdental cleaners or water flossers, and neglecting 6-month check-ups allow bacteria to accumulate, leading to peri-implantitis.
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General health: Uncontrolled chronic diseases such as diabetes, or weakened immune system, increase the risk of complications.
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Treatment planning and surgical technique: Proper implant positioning, high-quality materials, and an experienced dentist all significantly affect long-term success.
How Do Smoking and Alcohol Affect the All-on-Four Lifespan?
Smoking disrupts blood circulation around implants, making the healing process slower and negatively affecting osseointegration. Smokers are 2–3 times more likely to experience implant loss. Alcohol consumption also impairs bone metabolism and weakens the immune system, reducing the long-term success of implants.
Does the Material Used Affect the Lifespan of All-on-Four Implants?
Implants are usually made of pure titanium, which is highly biocompatible and durable. Therefore, implant material itself is rarely the limiting factor. However, implant brand, production quality, and surface characteristics affect success.
The prosthetic component can wear down over time. Acrylic prostheses may fracture or wear faster, while zirconia prostheses are more durable and biocompatible.
How Important Are Regular Check-Ups After All-on-Four Treatment?
Regular check-ups are crucial for long-term success. Typically, patients should visit their dentist every 3–6 months during the first year, and at least once a year afterward.
During these visits, gum health, implant stability, and prosthetic fit are assessed. Early detection of problems allows easy repair.
This page is for informational purposes only.
For diagnosis and treatment, you must consult your dentist.