Why is it important to check centric contacts before tooth preparation?

Checking centric contacts before tooth preparation is essential to ensure proper occlusion after restoration. Centric contacts refer to the points of contact between opposing teeth when the jaws are in the closed position, which is critical for maintaining a functional bite. If occlusion is not right after the restoration is placed, it can lead to various issues, including discomfort, uneven wear on teeth, and failure of the restoration itself.

By assessing these contacts beforehand, the dentist can make informed decisions during tooth preparation to preserve the existing occlusal scheme as much as possible, thus facilitating a smoother adjustment period for the patient after the restoration is completed. This proactive approach helps in achieving a harmonious bite that supports the longevity and effectiveness of the prosthetic or restoration, ultimately leading to better patient outcomes.