How long does denture relining last?

There are two clinically relevant reline categories. Hard relines use heat-cured acrylic processed in the lab, producing a dense, dimensionally stable result that holds its fit for 2 to 5 years under normal wear. Soft relines use resilient silicone or acrylic copolymers that cushion resorbed or tender ridges , useful for immediate post-extraction cases , but the material absorbs stain, harbors microbes, and loses elasticity within 12 to 24 months. The method matters as much as the material.

Alveolar resorption rate is the variable that overrides material longevity estimates. A patient losing 1.5 mm of ridge height per year will compromise a technically perfect reline far faster than the material timeline suggests. For your edentulous patients in the first 12 months post-extraction, build a recall cadence that includes fit assessment at 6 months, not just 12. Catching early rocking or anterior lift at 6 months converts a simple reline appointment into a retained patient relationship.

For practices sending reline cases to Dani Dental, processed hard relines ship on a 3 to 5 business day turnaround from impression receipt. Chairside auto-polymerizing relines are an option when the patient cannot return for a second appointment, but the dimensional accuracy and longevity of a lab-processed result remain the standard for long-term prosthetic success.