Which factor impacts the longevity of a prosthetic restoration the most?

The longevity of a prosthetic restoration is heavily influenced by its correct alignment with occlusion. When a prosthetic is properly aligned with the patient's bite and jaw movement, it helps to ensure that the forces exerted during chewing and speaking are evenly distributed. This balanced distribution of occlusal forces minimizes areas of excessive wear or stress on the restoration, which can lead to premature failure.

Proper occlusion also prevents harmful conditions such as bruxism (teeth grinding) and temporomandibular joint (TMJ) disorders, both of which can significantly shorten the lifespan of the prosthetic. When the alignment is off, it may cause discomfort, functional inefficiencies, and necessary adjustments that can further compromise the integrity of the restoration.

While factors such as the material used, the technique during preparation, and the patient’s oral hygiene certainly play important roles in the overall success and durability of a prosthetic restoration, the precise alignment with occlusion is pivotal for its long-term functionality and avoidance of additional complications.