1- Wilkins, E.M.: Clinical practice of the dental hygienists, 8th edition, 1999, Philadelphia. Lippincott Williams and Wilkins.
2- Clinical Periodontology by; Newman, Takei, Carranza.
3-Dental Hygiene Theory and Practice
by; Darby, Walsh.
4-Oral Pathology for the Dental Hygienist
by; Ibsen, Phelan.
5- Essential physics for radiographers, Ball J. &Moore A. /Second Edition/1986/Blackwell Scientific Publication
6-Essentials of dental radiography for dental assistants and hygienists. De Lyre W. & Johnson O. /Third Edition /1985/Prentice-Hall Inc.
7- Dental radiography /Principles &Techniques. Haring J. &Jansen L. /Second Edition/2000/Saunders.
8- McMinn color atlas of head and neck anatomy. Logan B.,ReynolP.&HutchingsR./ThirdEdition/2004/Mosby