When is an indirect pulp capping indicated?

Indirect pulp capping is indicated when a thin partition of dentin remains intact over the pulp. This clinical situation typically arises when there is a deep carious lesion approaching the pulp but without actual exposure of the pulp tissue. The objective of indirect pulp capping is to preserve the vitality of the pulp while still allowing for the removal of most of the carious tissue. By placing a biocompatible material over the remaining dentin, the procedure aims to promote healing and support dentin regeneration while minimizing the risk of pulp exposure.

The other options describe situations where indirect pulp capping would not be appropriate. When the pulp is completely exposed, direct pulp capping or other surgical interventions are usually indicated. If there is significant infection present, the tooth would require endodontic treatment rather than a conservative approach like indirect pulp capping. Lastly, while an asymptomatic tooth may seem like a candidate for indirect pulp capping, it is not a definitive indicator by itself; the condition of the dentin and proximity to the pulp are more critical factors in deciding the appropriateness of the treatment.