At what depth is a near pulp exposure defined?

A near pulp exposure is defined as a condition where the distance from the cavity preparation to the pulp chamber is critical. If the preparation is less than 0.5mm from the pulp, it indicates that there is a high risk of actual pulp exposure or that the pulp is very close to being exposed during restorative procedures. This proximity necessitates careful management, as it can influence treatment decisions, such as the need for pulp protection or other interventions to prevent pulp damage.

The other considerations are relevant but do not meet the definition of a near pulp exposure. Distances greater than 0.5mm reduce the risk and are thus classified differently, indicating a safer margin from the pulp. Understanding this threshold is vital for effective dental practice, especially when considering restorative techniques and procedures in close proximity to the dental pulp.