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Nickel is well-known for its role in enhancing the ductility of dental materials. Ductility refers to a material's ability to deform under tensile stress, allowing it to be stretched or shaped without breaking. This characteristic is essential in dental applications, as materials often need to be manipulated during procedures while maintaining integrity and durability.

Nickel is commonly alloyed with other metals in dental materials to improve their performance. The addition of nickel increases the overall flexibility of the dental material, making it easier to work with and form, particularly in applications such as orthodontics where precision and adaptability are critical.

While nickel does contribute to corrosion resistance, strength, and hardness, its most notable contribution in the context of dental materials is its enhancement of ductility, making it a versatile and crucial component in the formulation of various dental alloys and composites.