One difference between the maximum permissible exposure (MPE) and the maximum permissible dose (MPD) in radiation levels is that the dose does not use an age-based formula. Another difference between the MPE and the MPD in radiation levels is that the MPD only applies to dental personnel, while the MPE is used in general settings.

Dental hygienists assist dentists in conducting cleanings and advising patients on proper oral hygiene and care. The NBDHE Dental Hygienist exam has 350 questions and has two components ( with many subsections): Discipline Based and Dental Hygiene Patient Cases.  Component A: The first component covers these main exam sections: Scientific Basis for Dental Hygiene Practice; Provision of Clinical Dental Hygiene Services and Principles of Community Health and Research.  Component B: The second component of patient cases contains at least one each of geriatric, periodontal, pediatric, special... Show more

Dental hygienists assist dentists in conducting cleanings and advising patients on proper oral hygiene and care.

The NBDHE Dental Hygienist exam has 350 questions and has two components ( with many subsections): Discipline Based and Dental Hygiene Patient Cases. 

Component A: The first component covers these main exam sections: Scientific Basis for Dental Hygiene Practice; Provision of Clinical Dental Hygiene Services and Principles of Community Health and Research. 
Component B: The second component of patient cases contains at least one each of geriatric, periodontal, pediatric, special needs and medically compromised patient cases.

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