What is the primary component that forms the bulk of a tooth?

What is the primary component that forms the bulk of a tooth?

• A. Dentine
• B. Enamel
• C. Cementum
• D. Pulp

Answer: (A)

Dentine is the primary component that forms the bulk of a tooth, making up about 70% of its structure. It is a hard tissue located beneath the enamel and cementum while surrounding the pulp. Dentine has a composition that includes collagen fibers and mineral content, which provides strength and resilience, contributing to the overall integrity of the tooth. While enamel is the outermost layer and is indeed the hardest substance in the human body, it does not constitute the bulk of the tooth; it primarily provides a protective outer covering. Cementum is a connective tissue that covers the roots of the teeth, aiding in anchoring them to the periodontal ligament but does not contribute significantly to the tooth's mass. The pulp, found at the center of the tooth, contains blood vessels and nerves but is not a structural component of the tooth itself. Therefore, dentine is the correct answer as it forms the majority of the tooth's internal structure.

Dentine is the primary component that forms the bulk of a tooth, making up about 70% of its structure. It is a hard tissue located beneath the enamel and cementum while surrounding the pulp. Dentine has a composition that includes collagen fibers and mineral content, which provides strength and resilience, contributing to the overall integrity of the tooth.

While enamel is the outermost layer and is indeed the hardest substance in the human body, it does not constitute the bulk of the tooth; it primarily provides a protective outer covering. Cementum is a connective tissue that covers the roots of the teeth, aiding in anchoring them to the periodontal ligament but does not contribute significantly to the tooth's mass. The pulp, found at the center of the tooth, contains blood vessels and nerves but is not a structural component of the tooth itself. Therefore, dentine is the correct answer as it forms the majority of the tooth's internal structure.