Which one of the following options shows the two tissues that lie at the ame-lodentinal junction?

The relationship between enamel and dentine at the amelo-dentinal junction is crucial in dental anatomy. The amelo-dentinal junction is the interface where these two types of dental tissue meet. Enamel, being the hard, outer layer of the tooth, is produced by ameloblasts, while dentine, which is the main bulk of the tooth beneath the enamel, is formed by odontoblasts.

Understanding this relationship is significant because both enamel and dentine have distinct properties and functions within the tooth structure. Enamel is primarily responsible for protecting the tooth from wear and decay due to its hardness, while dentine is more flexible, connecting the enamel to the tooth’s pulp and playing a role in sensitivity and support.

The other options do not accurately reflect this specific junction. Cementum and enamel are found at the cementoenamel junction, while pulp and dentine are related but exist deeper within the tooth structure, with pulp located within the root canal. Therefore, the correct pairing of tissues at the amelo-dentinal junction is indeed enamel and dentine.