An inlay is a restoration produced in a laboratory to restore a cavity in a tooth. Which of the following techniques will be used during the filling procedure, but not during the inlay procedure?

In the context of dental procedures, an inlay is a type of restoration crafted outside of the mouth in a laboratory and is fitted into a prepared cavity in a tooth. The use of undercuts is primarily associated with direct restorations, such as fillings, where a retaining shape is needed to help secure the material within the cavity. This involves preparing the tooth in a way that creates small undercuts, allowing the filling material to stay in place.

During the inlay procedure, the cavity preparation is designed to accommodate the inlay accurately, focusing on smooth, flat surfaces that do not require the retaining features created by undercuts. The inlay is precisely shaped and fitted, offering a bipolar bond with the tooth structure without the need for undercutting to ensure retention, as it relies on adhesive properties and mechanical fit.

In contrast, the application of anesthetic is useful during both procedures to manage patient discomfort, the use of dentinal pins can reinforce the structure in both fillings and inlays, and a lining may be applied in both cases to protect the pulp or provide insulation.