What consequence may arise from using sharp line angles in restorations?

Using sharp line angles in restorations can lead to an increased risk of fracture due to stress concentrations that develop at these sharp edges. When the restoration is subjected to forces from chewing or other functional activities, the stress can be amplified at the sharp transitions in contour, making the material more susceptible to breaking or chipping. A rounded contour, in contrast, helps distribute the stress more evenly across the surface of the restoration, thereby enhancing durability and resilience.

The other options, while potentially desirable outcomes, do not directly relate to the consequence of sharp line angles. For example, enhanced esthetic qualities are often associated with smooth, well-contoured restorations rather than sharp edges. Furthermore, improved seating accuracy and higher patient satisfaction are typically achieved through meticulous design and fitting techniques rather than the presence of sharp line angles, which may compromise the overall performance of the restoration.