All-on-four dentures are a revolutionary type of implant-retained denture that can provide a permanent solution to missing teeth. While 10 years may not seem like a long time, it's important to understand where that number comes from. All-in-four implants have been proven to stand the test of time. In fact, data shows that they can last 20 years or more with proper care.
Implant posts should never be replaced; however, your dentures will suffer daily wear and tear. It may need adjustments over the years, but 99% last 10 years or more without any problem. A quarterly visit is essential for the routine maintenance and cleaning of your implants and dentures. The visit can be as routine as scraping and cleaning or as thorough as removing permanently attached dentures to perform a deep cleaning of the implant roots, depending on the accumulation of plaque.
To say that dental implants are permanent is not yet accurate. Research suggests that, with proper care, the user may have not used the implant for 25 years or more; it has not been determined if they will last forever. But compared to dentures and bridges that need to be replaced after ten years, yes, more than 25 years are considered permanent. Most people won't need to get their implants dirty or replaced throughout their lives.
It doesn't have the solid implant base of “all-in-four” implants and doesn't provide the biting force of permanently anchored dentures. Wear and tear on the fixing surface due to the fact that the denture is placed and removed repeatedly means that you will have to replace the denture every 12 to 18 months.
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