What is the hardest tissue in the human body?

Enamel is recognized as the hardest tissue in the human body. This highly mineralized substance forms the outer layer of teeth and provides crucial protection against dental decay and physical wear. Its composition is about 95% mineral, primarily hydroxyapatite, which gives enamel its exceptional strength and resistance to acid attack from food and bacteria.

The unique structure of enamel, with its tightly packed crystals and high mineral content, allows it to withstand significant forces during chewing, making it essential in maintaining overall dental health. Understanding the composition and function of enamel is fundamental for anyone studying dental nursing, as it directly relates to the preservation of tooth integrity and preventing caries.