What is the impact of using inappropriate occlusal arrangements in restorations?

Using inappropriate occlusal arrangements in restorations can lead to restoration displacement. This occurs because improper alignment and contact with opposing teeth can create uneven forces during chewing and other jaw movements. When occlusion does not mesh correctly, undue stress is placed on the restoration, which can result in loosening, chipping, or full displacement from the underlying tooth structure or dental implant. Such mechanical issues not only compromise the integrity of the restoration itself but may also lead to further complications, including damage to adjacent teeth and an overall disturbance in oral function.

In contrast, the other options do not accurately reflect the consequences of inappropriate occlusal arrangements. Preventing aesthetic issues speaks to proper design and fit rather than occlusion; the statement about enhancing longevity contradicts the reality that poor occlusion can shorten a restoration's lifespan instead; and the notion of reducing functional efficiency directly ties into the broader issues caused by a faulty occlusion rather than being a separate benefit or drawback.