Wednesday, September 17, 2014

Triple Tray Check Bite

It is known that patients frequently bite differently when anesthetized, and after being open for an extended period of time during the preparation procedure.  So, Dr. Damon Adams, visiting lecturer and editor-in-chief of Dentistry Today, promotes a unique method of ensuring an accurate bite when taking a dual-arch (triple tray) impression. The first step is to capture a centric occlusion (CO) bite on the contralateral (non-prep) side prior to administering anesthesia and before tooth preparation. When taking the final quadrant impression on the prep side, the clinician will use the contralateral bite to confirm accuracy of closure. In other words, the clinician can observe the initial CO bite (seated in place on the contralateral opposing arch) as the patient slowly closes into the impression tray on the prep side. The contralateral CO bite will serve to “guide” the patient into a proper centric. Without a verification technique such as this, slight variations in bite often go unnoticed, creating lengthy occlusal adjustments with unnecessary stress for the clinician at the delivery appointment. 

No comments:

Post a Comment