Michaela Nguyen, RDH, BSDH, MS, is the preclinical director and senior clinical instructor in the Dental Hygiene Program at USC Ostrow School of Dentistry. She co-authored the chapter on hand-activated instrumentation in the 5th edition of Darby and Walsh’s Dental Hygiene Theory and Practice. Nguyen also conducts and participates in advanced instrumentation hands-on workshops throughout the country and internationally.