Faculty of Sciences. Fellow, International College of Dentists. 1996 Director of Graduate Studies in Histology 1997-present Professor, University of Illinois, College of Medicine, Department of Anatomy and Cell Biology. Cellular control of enamel mineralization and the role of cell associated calcium pumps,e.g. membrane associated calcium-magnesium adenosine triphosphatase . Lysosomal elements in the dental pulp.
Periodontal tissue changes incidental to disease and various therapeutic modalities.
1983 Consultant, Graduate Dental Program, Tanta University, Egypt. 1974-present Consultant, Research program, Cairo University, Faculty of Oral and Dental Medicine, Egypt. 1993-present Member, Advisory Board, Cairo Dental Journal. 1998-present Faculty of Dentistry, Alexandria University, Alexandria, Egypt. Histology and lysosomal cytochemistry of the post-surgically inflamed dental pulp following topical application of steroids.