The title of this brief article is one of the most common questions I am asked. Up until recently, my response was to ask the clinician if they were happy with the results they were obtaining. If they were, I’d recommend staying with their current adhesive, which may have been providing “acceptable” results. Often, I may have replied in jest, “if it ain’t broke, why fix it?” In retrospect, I now recognize how little I truly understood the importance of how a quality adhesive with superior charac