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.
Dental Hygiene Classes. Programs in dental hygiene generally take two years to complete with the first portion spent in the classroom studying basic aspects of oral anatomy and hygiene. Courses in this phase of training may include oral biology, dental anatomy, dental hygiene theories and practices, dental pharmacology and oral histology.