Which three functions can dental bases perform for a tooth?

The functions that dental bases can perform for a tooth include acting as a protective base, an insulating base, and a sedative base.

A protective base functions to shield the pulp of the tooth from thermal, chemical, and mechanical irritants that might arise from restorative materials or oral environment conditions. It acts as a barrier, preventing potential harm and discomfort to the sensitive pulp.

An insulating base serves to mitigate temperature changes that could negatively impact the pulp, particularly after a restoration procedure. This is especially crucial when materials with high thermal conductivity are used, as the base provides a buffer against temperature fluctuations.

A sedative base contains components that can soothe or calm the pulp, particularly in cases where the tooth has been sensitive or inflamed. This type of base helps to alleviate discomfort and promote healing, making it beneficial for teeth that are undergoing restorative procedures.

The other choices describe functions that are not typically associated with dental bases. Whitening, bonding, sealing, desensitizing, filling, cleaning, polishing, and reinforcing do not fall under the primary roles of dental bases as recognized in clinical practice. Thus, the three highlighted functions accurately reflect the primary roles that dental bases serve in maintaining tooth and pulp health during restorative procedures.