HOSA Dental Terminology Practice

What class of tooth fracture is characterized by fractured enamel showing rough edges with no dentin involved?

1. Class I

2. Class II

3. Class III

4. Class IV

The correct answer is: Class I

The classification of tooth fractures is often based on the severity and extent of the damage to the tooth structure. Class I fractures are characterized specifically by damage that is limited to the enamel, which is the outermost layer of the tooth. In this case, the fractured enamel presents with rough edges, indicating that the fracture is superficial and does not involve the dentin underneath. Dentin is the layer of tissue beneath the enamel, and its exposure or involvement typically denotes a more severe fracture. Since Class I fractures do not compromise the dentin, they are considered minor injuries. This distinction is crucial in dental terminology and understanding, as it helps dental professionals assess the treatment options needed based on the fracture's classification. This classification not only aids in diagnosis but also guides the approach to management and potential restorative interventions.