When evaluating the longevity of sculptures, material choice plays a pivotal role. Bronze, plaster, and concrete each offer distinct advantages and limitations in terms of durability and preservation.

Bronze sculptures are renowned for their exceptional longevity, often surviving centuries or even millennia. The alloy's resistance to corrosion, especially when patinated or sealed, makes it ideal for outdoor and indoor settings. Bronze develops a protective patina over time, further enhancing its resilience against environmental factors like moisture and temperature fluctuations.

Plaster sculptures, while versatile and cost-effective, are far less durable. Plaster is prone to chipping, cracking, and deterioration when exposed to humidity or physical stress. Indoor display is recommended, as outdoor conditions accelerate degradation. However, plaster's fragility makes it unsuitable for long-term preservation without meticulous care.

Concrete sculptures strike a middle ground. While more robust than plaster, concrete is porous and susceptible to weathering, especially in freeze-thaw cycles. Reinforced concrete can extend longevity, but it remains vulnerable to cracking and surface erosion over decades.

In summary, bronze stands unmatched for longevity, offering unparalleled durability for heirloom or public art. Plaster suits short-term or protected displays, while concrete provides moderate durability for larger installations. Artists and collectors must weigh material properties against their intended use and preservation goals.