I have been asked how to tighten the retainers after you are done making them. This is a very important Quality Control (QC) step! Be sure and check with your doctor how tight he/she wants the retainer on the model. I shot this video real quick using my new, small lab “Studio” in my garage! So, sorry about the quality, its only going to get better! and sorry about the stopped up nose, I’m fighting allergies 🙁
