Two secondary outcomes will also be analyzed. First, the time required to perform the impression procedure will be recorded using a timer. Second, patient discomfort will be assessed using the FACES visual picture pain scale rated from 1-10 based on the following question posed at 3 points during treatment; "How much discomfort are you experiencing at this point in treatment?" This question will be asked before the impression procedure is initiated, immediately after the impression procedure is completed, and again at the completion of the treatment appointment. Each question will be rated on a scale of 1 to 10. The total score indicated by the sum of the 3 questions will be analyzed.