Estimation of the aging of breast prostheses materials by accelerated tests

Breast prostheses are extensively employed for either aesthetic augmentation or medical aims. Clinical or subjective reasons may sometimes induce early removal; however, it is not uncommon for them to remain implanted for extended periods, often exceeding 20 years. Understanding the expected materials changes over time is crucial for deciding on their potential removal or replacement. This study examines the aging of silicone prosthesis materials, measuring the changes in the mechanical properties of the elastomeric shell and the viscosity of the inner gel after accelerated aging tests at various temperatures over a period exceeding two years. Predictive models based on the time-temperature superposition principle enable the estimation of mechanical performance over extended timeframes, providing valuable insights into the expected durability and lifespan of implants.