Where is the best location for a pin in a Class II inlay?

The best location for a pin in a Class II inlay is where the biggest thickness is.

In the context of dental restorations like inlays, the primary goal is to provide adequate retention and resistance to displacement. Placing the pin in the area of greatest thickness ensures that the pin is anchored securely, as this location typically offers a stronger substrate for the pin's retention. Thicker enamel or dentin can better support the mechanical forces acting on the restoration, reducing the risk of failure or debonding over time.

Additionally, this approach minimizes the potential for stress concentration that can occur if the pin is placed in a less dentin-thick area, which could compromise the integrity of the restoration. By choosing a location that provides the most structural support, clinicians enhance the durability and effectiveness of the inlay restoration in the long term.