When the closet is an integral part. of the bedroom, a safe approach would call for the. closet wiring to be protected just as other parts of the. bedroom. Commercial applications. Although not required under the NEC, AFCIs are suit-. able for use in commercial applications in circuits for. which they are rated.
Step 1: Get an Undergraduate Degree. Dental hygienists usually hold an associate's degree, such as an Associate of Applied Science, in dental hygiene. Two-year degree programs are available at community colleges, vocational institutes, or dental schools.
1 A bachelor's degree in dental hygiene requires two years of undergraduate studies followed by two years of clinical work. 2  Cost for the four-year program at a public college or university averaged $20,000-$27,200 during 2006-2007 for in-state residents.