During preparation for a metal-ceramic crown, which tooth type is most likely to expose the pulp?

In the context of preparing for a metal-ceramic crown, the mandibular incisor is most likely to expose the pulp because it is a single-rooted tooth with a smaller pulp chamber compared to other tooth types. The anatomy of a mandibular incisor typically includes a narrow, deeper pulp chamber that is more susceptible to exposure during the crown preparation process, especially if reduction guidelines for occlusal and proximal areas are not carefully followed.

Additionally, mandibular incisors often have more curved roots and closer proximity of the pulp to the outer enamel surface. This increases the risk of pulp exposure when performing extensive tooth reduction required for the metal-ceramic interface. In contrast, the maxillary incisor has a more pronounced and wider pulp chamber and the maxillary premolar and mandibular molar generally have multiple roots, which allows for greater dentin thickness and a better safeguard against pulp exposure during crown preparations.