: basic methods World Health Organization creator text New Delhi A.I.T.B.S. Publishers & Distributors (Regd.) 1999 monographic vii, 66 p. : ill. ,Col. ; 24 cm. Included bibliographical references and appendices Dental surveys Teeth diseases Oral disease Fluorides Health Mucosa FRAHS IIDC 614.59960723 ORA 8185386986 (pbk) 9788185386980 (pbk) 20260611121903.0