How many roots and cusps do anterior lower and upper permanent teeth typically have?

The correct response is based on the anatomical structure of anterior teeth, which include incisors and canines. Anterior teeth in both the upper (maxillary) and lower (mandibular) arches typically have a single root. This is consistent across all permanent anterior teeth, which includes the central and lateral incisors as well as canines.

Moreover, anterior teeth do not have cusps. Instead, they feature incisal edges that are sharp and are designed for cutting rather than grinding. The lack of cusps distinguishes them from posterior teeth, which are designed for chewing and have multiple cusps to aid in the grinding process.

Understanding the structure of anterior teeth is crucial for dental nursing, as it helps in recognizing their roles in function, occlusion, and in various dental procedures. The focus on the single root and absence of cusps is essential in differentiating them from posterior teeth, which typically have multiple roots and cusps for their specific functions.