During the last decade, a new technology has been explored that will give clinicians an opportunity to diagnose in a new dimension. Quantitative percussion testing allows a clinician to evaluate the structural stability of natural teeth or dental implants by measuring the way it responds to a light impact on the buccal surface. The energy that is returned to the handpiece is analyzed in a manner that provides two pieces of information—the loss coefficient (LC) and an energy response graft (ERG) of the structure tested . These two pieces of information can give the clinician indications of how sound the tested structure is and whether there are problems such as dentinal cracks and fractures, microleakage, recurrent decay, loose post and cores and other structural defects. By having an indication as to how a tooth or implant responds to mechanical stress prior to starting restorative care, the clinician will be prepared to look for potential problems where abnormal ERG’s are observed. ERG’s also help patients understand the bioengineering challenges that some teeth present due to crack propagation and other serious biomechanical problems. Combined with video documentation of the defect, it creates a powerful documentation and patient educational tool simultaneously. Other technologies will also be discussed which help increase precision in dentistry.