How many teeth do humans have in total, and what are the two sets called?

Humans have two sets of teeth: deciduous (baby) teeth and permanent teeth. Deciduous teeth total 20, while permanent teeth total 32.

What are the main types of teeth and their functions?

Teeth are categorized into four types: incisors for cutting, canines for tearing, and premolars and molars for grinding food. They also contribute to facial aesthetics and expression.

When do wisdom teeth typically erupt?

Wisdom teeth, or third molars, usually erupt between 18 and 24 years of age as part of the permanent dentition.

What are the main structural parts of a tooth?

A tooth consists of three main parts: the crown (exposed and covered by enamel), the neck (constricted junction), and the root (embedded in the jawbone).

What nerves supply sensation to the upper and lower teeth?

Upper teeth are supplied by alveolar nerves from V2 (maxillary nerve), while lower teeth are supplied by the inferior alveolar nerve from V3 (mandibular nerve).

What is the dental formula for permanent teeth?

The dental formula for permanent teeth is I 2/2, C 1/1, P 2/2, M 3/3, totaling 32 teeth across the mouth.

What are some common clinical issues related to teeth?

Common issues include dental caries (tooth decay), impaction (e.g., wisdom teeth not erupting properly), and hypodontia/hyperdontia (fewer or extra teeth).

Teeth Anatomy – Types, Structure & Eruption

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