HOSA Dental Terminology Practice

What distinguishes Class III tooth fractures?

1. Fractured enamel with no dentin

2. Fractured enamel with exposed dentin

3. Full fracture exposing pulp

4. Rough edges without complications

The correct answer is: Full fracture exposing pulp

Class III tooth fractures are characterized by a fracture that extends deep enough to expose the dental pulp, which contains nerves and blood vessels. This type of fracture generally occurs through the enamel and dentin layers and reaches the pulp chamber, creating a significant clinical issue that often requires immediate dental intervention to manage pain, prevent infection, and preserve tooth vitality. The severity of Class III fractures can lead to complications such as pulpitis or necrosis if the exposed pulp is not treated promptly. Additionally, there may be a need for restorative procedures or even endodontic treatment, depending on the extent of the damage and the patient's symptoms. Understanding Class III fractures is crucial in dental practice for effective diagnosis and treatment planning.