Some popular dental hygiene board review books include:
1. "Darby's Comprehensive Review of Dental Hygiene" by Christine M. Blue and Margaret J. Fehrenbach
2. "Mosby's Review Questions for the National Board Dental Hygiene Examination" by Mosby
3. "Saunders Review of Dental Hygiene" by Margaret J. Fehrenbach and Jane Weiner
4. "Dental Hygiene Board Exam Review" by R. J. Mapp
5. "Dental Hygiene Examination Review Book" by Jeremy B. Ward