Education

Biography

Dr. Hassan is currently Professor and Senior Clinical Consultant of Restorative Dentistry, Clinical Dental Sciences Department, College of Dentistry, Princess Nora University, Riyadh; Saudi Arabia. He is a former Vice-dean for Postgraduate Studies and research, and a former Chairman of the Restorative Dentistry Department, both at the Faculty of Dentistry, Mansoura University in Egypt. He is also a former Head of the Division of Operative Dentistry, College of Dentistry, King Saud University, Riyadh; Saudi Arabia. He worked as a Professor at King Saud University in Saudi Arabia, and Mansoura University in Egypt. He also worked as a Senior Research Fellow & Associate at the School of Dentistry, Marquette University; USA. As a Visiting Professor, He joined the Dental School, University of Adelaide; Australia, and the Faculty of Dentistry, University of Toronto; Canada.

Dr. Hassan serves as an Editorial Board member for several national and international Journals; including the Journal of Contemporary Dental Practice, Journal of Dentistry and Dental Medicine, Journal of Clinical Research in Dentistry, and Journal of Dental Problems and Solutions.

He received a BDS., MSD, and PhD from the Faculty of Dentistry, University of Alexandria, Egypt. He also received a Certificate of Advanced Training in Operative Dentistry and Dental Materials from the School of Dentistry, Marquette University; USA.

Dr. Hassan has several publications in national and international Journals, and has made several presentations before major dental groups nationally and abroad.

Dr. Hassan’s research Interests include bond strength of composite resins, microleakage and repair; placement techniques for composite resins, and polymerization shrinkage and curing lights; as well as adhesive resins; and bleaching of discolored teeth.

Research Interest

• Bond strength of composite resins, micro leakage and repair
• Placement techniques for composite resins, polymerization shrinkage and curing lights
• Adhesive resins and resin cements
• Bleaching of discolored teeth

Scientific Activities

Employment History

Professional Activities

• Editorial board member of Journal of Dentistry and Dental Medicine
• Journal of Clinical Research in Dentistry
• Journal of Contemporary Dental Practice (JCDP)
• King Saud University Journal of Dental Sciences (KSUJDS)
• Journal of Dental Problems and Solutions (JDPS)
• Libyan Medical Journal (LMJ)

Awards & Honors

• Co-recipient of the 3rd Place Research Award granted by the Committee of Poster Presentations. The 14th Saudi International Dental meeting and the 23rd Saudi Dental Society, Riyadh, Saudi Arabia, Feb. 6-8, 2012. This award was offered on a competition basis. The value of this award was approximately US $375.00.
• Recipient of a 13-month Postdoctoral Fellowship granted by Egypt/USA - January, 1984. This Fellowship was offered annually to junior faculty on a National competition basis. Total value of this Fellowship was US $22,500.00.
• Recipient of the 1st Place Research Award granted by the Committee of Spring Table Clinics and Poster Presentations, School of Dentistry, Marquette University, USA - July, 1983. This award was offered annually on a competition basis. The value of this award was approximately US $500.00.

Publications

1. Khier, S. and Hassan, K.: Efficacy of Composite Restorative Techniques in Marginal Sealing of Extended Class V Cavities. International Scholarly Research Network (ISRN) Dentistry, Article ID 180197, Volume 2011.
2. Hassan, K.: Polymerization Shrinkage Stress Reduction in Direct Occlusal Composite Restoration Placed Using Split-increment Horizontal Technique - Case Report. WebmedCentral DENTISTRY 2010; 1(9):WMC00626.
3. Hassan, K. and Khier, S.E.: Split-increment Technique: An Alternative Approach for Large Cervical Composite Resin Restorations. J Contemp Dent Practice, February; 8(2)121-128, 2007.
4. Hassan, K. and Khier, S.E.: Composite Resin Restorations of Large Class II Cavities Using Split-increment Horizontal Placement Technique. General Dent., 59:172-177, May/June, 2006.
5. Al-Khamis, N. and Hassan, K.: The Effect of Different Light Curing Methods on Surface Hardness and Depth of Cure of Different Types of Composite Resin, J. Pakistan Dent. Assoc., 14:200-205, 2005.
6. Awliya, W. and Hassan, K..: In-vitro Assessment of Microhardness of Composite Resins as Affected by Immersion in Different Beverages. J. Pakistan Dent .Assoc, 14:195-199, 2005.
7. Hassan, K. and Khier, S.E.: Split-increment Horizontal Layering: A Simplified Placement Technique for Direct Posterior Resin Restorations. General Dent., 58:406-409, November/December, 2005.
8. Al-Mahana, M.A., Hassan, K. and Al_Saif, K.: Effect of Curing Light Sources on Microleakage of Class V resin-based Restorations. Egyptian Dental Journal, 51:1-7, 2005.
9. Hassan, K. and Khier, S.E.: Influence of Disinfection on Elastomeric Impression Materials As Measured by Contact Angles of Die Stone. J. Pakistan Dent. Assoc., 14:12-18, 2004.
10. Hassan, K. A., Abd-EI Razek, A.A., Koraitim, L. A. and EI-Embaby, A. E.: Reproducibility of the Selected Shade for Indirect Laminate Veneers by using Various Shades of Luting Resins. Egyptian Dent J. 50(3.1) 1179, 2004.
11. Abu-Melha, AA and Hassan, K.: Placement Techniques of Direct Posterior Composites in Class II Cavities and Associated Microleakage: A literature review. J. Pakistan Dent. Assoc., 13:22-28, 2004.
12. Hassan, K.A. and Khier, S.: Effect of Therapeutic Gamma Radiation on Diametral Tensile Strength and Microhardness of Photo-cured Glass-ionomer Restorative Cements. The Saudi Dent. J. 9(2): 38, 1997.
13. Khier, S., Hassan, K.A. and Al-Sugair, M.: Repair Bond Strength of Resin-modified Restorative Glass-ionomer Cements. The Saudi Dent.J. 9(2): 29, 1997.
14. Hassan, K.A., Khier, S. and Nahass, M.: Interfacial Bond Behaviour of Composite Resin-veneered Amalgam as A Function of Temperature under Water Immersion. The Saudi Dent. J. 9(1): 30-35, 1997.
15. Hassan, K.A., Khier, S.E., Abdel-kader, S.M. and Taymour, N.: Failure Analysis of Root Canal Files. Egyptian Dent. J. 39(2): 401, 1993.
16. Hassan, K.A.: Effect of Immersion Disinfection on the Wettability of Elastomeric Impression Materials. Egyptian Dent. J. 39 (2): 395, 1993.
17. Hassan, K.A.: Finishing of Glass-ionomer Restoratives - Effect of Early Finishing on their Diametral Tensile Strength. Al-Azhar Dent. J. 8(3): 341, 1993.
18. Hassan, K.A.; Khier, S.E.; and Abdel-Kader, S.: Wettability of Elastomeric Impression Materials - A Comparison of Measuring Methods. Al-Azhar Dent. J. 8 (3): 338, 1993.
19. Hassan, K.A. and Khier, S.E.: An in-vitro Investigation of the Antimicrobial Effect of Glass-ionomer Cements. Mansoura Dent. J. 3(2): 15, 1992.
20. Hassan, K.A.: Porosity in Manipulated Photo-polymerized Posterior Composite Resins and its Effect on their Diametral Tensile Strength. Mansoura Dent. J. 3(1): 40, 1992.
21. Hasap, S., Hassan, K.A., Shabara, M. and Khier, S.E.: Retention of Class II Resin-bonded Amalgam Restorations. Mansoura Dent. J. 2(4): 36, 1991.
22. Hasap, S., Hassan, K.A., Shabara, M. and Khier, S.E.: Shear Bond Strength of Resin-bonded Amalgam. Mansoura.
23. Hasap, S., Hassan, K.A., Shabara, M. and Khier, S.E.: Evaluation of Microleakage in Class II Amalgam Restorations Bonded to Tooth Structure. Mansoura Dent. J. 2(3): 17, 1991.
24. Hassan, K.A. and Khier, S.E.: Temperature-dependence of Mechanical Properties of Posterior Composite Resins. Mansoura Dent. J. 2(4): 89, 1991.
25. Khier, S.E. and Hassan, K.A.: Size-interaction Between Finishing Abrasive Grits and Filler Particles of Composite Resins during Finishing. Mansoura Dent. J. 2(1): 71, 1990.
26. Hassan, K.A. and Khier, S.E.: The Efficiency of Two Composite Finishing Systems. A Comparative Study. Mansoura Dent. J. 2(1): 55, 1990.
27. Hassan K.A., Mante, F., List, G. and Dhuru, V.B.: A Modified Incremental Filling Technique for Class II Composite Restorations. J. Prosthet. Dent., 58(2), 1987.
28. Dhuru, V.B., Asgharnia, M.K., Mayer, J.M. and Hassan, K.A.: Surface Porosity of Stone Casts Made from Polyvinyl Siloxane Impression Materials. Operative Dentistry 11(1) 1986.
29. Brantley, W.A. and Hassan, K.A.: An Investigation of the Effect of Heat Treatment on the Torsional Properties of Endodontic Files. Alex. Dent. J. 10(2), 1985.
30. Hassan K.A.: Study of Microleakage, Interface Area and Bond Strength of Composite Repairs. Ph.D. Dissertation, Alexandria University, Alexandria, Egypt, 1982.
31. Hassan K.A.: Effect of Water Sorption on the Surface Texture of Composite Restorations. M.S. Thesis, Alexandria University, Alexandria, Egypt, 1979.