What is a potential risk when performing tooth preparation?

Choosing "all of the above" highlights the multifaceted risks associated with tooth preparation in dental procedures.

Uncontrolled bleeding can occur during the preparation process, particularly if the dentist inadvertently cuts into soft tissue or blood vessels in the gingival area. This can complicate the procedure and may require additional intervention to manage the bleeding effectively.

Pulp exposure is also a significant risk when drilling into the tooth structure. If the preparation goes too deep, it can penetrate the pulp chamber, exposing the nerves and blood vessels. This not only causes pain but may also lead to pulpitis or necessitate root canal treatment to address potential infection and restore the tooth’s viability.

Infection is another critical concern in tooth preparation. Introduced bacteria can lead to pulp infection or abscess if there is exposure of the dentin or the pulp. Maintaining a sterile environment and proper technique during preparation is essential to mitigate this risk.

Given that all these risks can coexist and pose serious complications, the correct answer emphasizes the importance of recognizing the potential for multiple adverse outcomes in tooth preparation.