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Prof. Khamis Ahmed Hassan

Qualifications:
BDS, MSD, PhD, FADI

Position:
Professor and Head, Operative Dentistry Division, Restorative Dental Sciences Dept., College of Dentistry,  King Saud University, Riyadh, Saudi Arabia
Clinical Consultant, Restorative Dentistry, University Staff Clinic  

Course Director - RDS 411 (DUC), RDS 561

Contact:
Office No.         : 9661-4677415
E-Mail               : khamish@ksu.edu.sa
Office Location  : Rm. 33/2A
Mailing Address: Department of Restorative Dental Sciences  College of Dentistry, King Saud University, P.O. Box 60169, Riyadh 11545, Saudi Arabia.

Education:

Certificate of Postdoctoral Training in Advanced
Operative Dentistry and Dental Materials (1984-85)
Marquette University, Milwaukee, Wisconsin, U.S.A

Doctor Degree of Dentistry in Conservative Dentistry (1980-82)
(Including Operative Dentistry, Endodontics and Crowns & Bridges) Alexandria University, Alexandria, Egypt

Master Degree of Dentistry in Conservative Dentistry (1977-79)
(Including Operative Dentistry, Endodontics and Crowns & Bridges)
Alexandria University, Alexandria, Egypt

Bachelor Degree of Oral and Dental Surgery (1970-75) Alexandria University, Alexandria, Egypt

Research Interest:

1.  Composite resin properties; bond strength, microleakage, repair.
2.  Techniques of composite placement, polymerization shrinkage, light curing.
3.  Bonding agents, bonded amalgam.
4.  Resin cements.
5.  Effect of bleaching on tooth structure.

Publications:

1. 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.

2. Hassan, K.: Individual Increment-splitting: An alternative Placement Technique for Large Cervical Composite Restorations.  Oral Presentation at the 18th Saudi International Dental Congress & General Assembly Meeting, Riyadh, Saudi Arabia, 29-31 Jan., 2007.

3. Hassan, K.: A Simplified Direct Placement Split-increment Technique for Large Cavities in Posterior Teeth with Composite Resins.  Oral Presentation at the 1st Riyadh International Dental and Healthcare Meeting, Riyadh, Saudi Arabia, 11-13 Nov., 2006.

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. Hassan, K.: Direct Posterior Composite Stratification Using a “Split-increment Horizontal Layering” Innovative Technique.  Oral Presentation at the 17th Saudi International Dental Congress & General Assembly Meeting, Riyadh, Saudi Arabia, 28-31 Jan., 2006.

6. 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.

7. 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.

8. 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.

9. 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.

10. Hassan, K.:  Contemporary Direct Posterior Composite Restorations:  “Anatomic”, Multi-shade Stratification.  Oral Presentation at the IADR General Assembly Meeting, Saudi Arabian Section, Riyadh, Saudi Arabia, 10-13 Jan., 2005. 
11. 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.

12. Hassan, K.:  Direct Pulp capping: Calcium Hydroxide Agent vs. Adhesive Bonding Systems.  Oral presentation at the Ministry of Health 7th Dental Meeting, Makkah, Saudi Arabia, 5-7 Oct., 2004.

13.  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.

14.  Hassan, K.:  Direct Adhesive Pulp Capping-Is it Controversial Enough to be Contraindicated?  Oral Presentation at the IADR General Assembly Meeting, Saudi Arabian Section, Riyadh, Saudi Arabia, 17-19 Jan., 2004.

15.  Hassan, K.:  Anterior "Polychromatic"  Direct Composite Build-ups.  J. Dent. Res., 82:607 (Special Issue C), Abst. #52, 2003.

16.  Hassan,:  Anterior "Polychromatic" Direct Composite Build-ups.  Oral Presentation at the IADR General Assembly Meeting, Saudi Arabian Section, Riyadh, Saudi Arabia, 4-6 Jan., 2003.

17.  Hassan, K.:  Multi-shaded Class IV Direct Composite Restorations:  Current Concepts.  Oral Presentation at the Ministry of Health, 6th Dental Symposium, Makkah, Saudi Arabia, 22-24 Oct., 2002.

18.  Hassan, K. and Khier, S.:  Effect of Immersion Disinfection of Elastomeric Impression Materials on the Wettability of Die Stone.  J. Dent. Res., 81:348 (Special Issue B), Abst #35, 2002.

19. Attia, A., Kern, M. and Khamis, A. (Hassan): Fracture Strength of All-ceramic Crowns Luted with Two Bonding Procedures.  J. Dent. Res., 80:651 (Special Issue), Abst #999, 2001.

20. 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.

21. 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.

22. Nahass, M. and Hassan, K.A.: Composite Resin-veneered Amalgam: SEM Investigation of the Nature of Bond Interface between Amalgam and Intermediate Adhesives. J. Dent. Res., 76:1301 (Special issue), Abst. #2130, 1997.

23. 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.

24. Hassan, K.A. and Khier, S.: Effect of Therapeutic Gamma Radiation on Diametral Tensile Strength and Microhardness of Photocured Glass-ionomer Restorative Cements. J. Dent. Res., 75:1290 (Special issue), Abst #57, 1996.

25. Nahass, M., Hassan, K.A. and Khier, S.: Influence of Temperature on Bond Strength of Composite Resin-veneered Amalgam. J. Dent. Res., 75:1290 (Special Issue), Abst #58, 1996.

26. Khier, S., Al-Sugair, M. and Hassan, K.A.: Repair Bond Strength of Resin-modified Restorative Glass-ionomer Cements. J. Dent. Res., 75; 1298 (Special Issue), Abst. #52, 1996.

27. Khier, S. and Hassan, K.A.: Active vs. Passive Dentin Surface Conditioning and its Effect on Adhesion on Glass-ionomer Restorative Cements. The Saudi Dent. J., 6(1): 112 (Special issue) Abst # 105, 1994.

28. 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.

29. Hassan, K.A.: Effect of Immersion Disinfection on the Wettability of Elastomeric Impression Materials.  Egyptian Dent. J. 39 (2): 395, 1993.
30. 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.

31. 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.

32. Khier, S.E. and Hassan, K.A.: Investigation of the Porosity in Glass-ionomer Restorative Cements and its Influence on their Diametral Tensile Strength. Poster Presentation at the 3rd Arab International Conference on Mat. Science. Alex. , Egypt. Sept. 1992.

33. 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.

34. 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.

35. 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.

36. Hasap, S., Hassan, K.A., Shabara, M. and Khier, S.E.: Shear Bond Strength of Resin-bonded Amalgam. Mansoura Dent. J. 2(4):24, 1991.

37. 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.

38. Hassan, K.A. and Khier, S.E.: Temperature-dependence of Mechanical Properties of Posterior Composite Resins. Mansoura Dent. J. 2(4): 89, 1991.

39. Taymour, N.; Abdel-kadr, S.M.; Hassan, K.A. and Khier, S.E.: The Effects of Gamma Radiation on the Tensile Strength and Microhardness properties of

40. Composite Restorative Resins. 7th Int. Dent. Congress. Alex., Egypt, Abst #44, 1990.

41. 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.

42. Hassan, K.A. and Khier, S.E.: The Efficiency of Two Composite Finishing   
    Systems. A Comparative Study. Mansoura Dent. J. 2(1): 55, 1990.

43. Ancheril S, Dhuru V, Brantley W, Hassan K. Density of condensed and            
    uncondensed  posterior composite resins. J Dent Res., 67(Special Issue):220, 
    Abstract #860,1988.

44. Hassan K, Dhuru V, Brantley W, El-Shafei F. Tensile strength of glass ionomer materials finished at different time periods. J Dent Res., 67(Special
     Issue):140, Abstract # 222, 1988.

45. Hassan, K.A. and Khier, S.E.: Comparison of Two Composite Finishing and Polishing Systems - A Lab. Investigation”. Table Clinic Presentation, Marquette University School of Dentistry Table Clinic Program, Spring 1987.

46. Ancheril, S. and Hassan, K.A.: A Comparison of Bulk Porosity of As-Delivered and Condensed Light-cured Composite Resins as a Function of Density”. Poster Presentation on 117th Annual Meeting of Wisconsin Dental Association, Table Clinic Program, May 1987.

47. 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.

48. Hassan, K.A.: Diameteral Tensile Strengths of Glass Ionomer Cements after Finishing at Different Time Periods”. Poster Presentation on Annual Meeting of Academy of Operative Dentistry, Feb 1987.

49. Hassan, K.A.: Effect of Finishing Techniques on the Mechanical Properties of Composite Restorative Materials”. Table Clinic Presentation on 122nd Annual Meeting of Chicago Dental Society, Feb 1987.

50. Dhuru, V.B., Hassan, K.A. and Mante, F.: Mercury Vapor Levels in a Pre-clinical Operative Dentistry Laboratory. J. Dent. Res., 65:191 (Special Issue), Abst #198, 1986.

51. Mante, F., Dhuru, V.B. and Hassan, K.A.: Emission of Mercury Vapor from Various Amalgam Specimens. J. Dent. Res., 65:191 (Special Issue), Abst #202, 1986.

52. Hassan, K.A.; Dhuru, V.B. and Mante F.: Intra-oral Mercury Vapor Levels After Chewing and Intake of Hot Beverage. J. Dent. Res., 65:191 (Special Issue), Abst #199, 1986.

53. Hassan, K.A.: How Much  Mercury from Amalgam Restorations?. Poster Presentation on 116th Annual Meeting of Wisconsin Dental Association, Table Clinic Program, May 1986.

54. 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.

55. Mante, F; Dhuru, V.B. and Hassan, K.A.: Knoop Microhardness, Rockwell Superficial Hardness and Indentation Resistance of Composite Restoratives, J. Dent. Res., 64 (Special Issue), Abst #34, 1985.

56. Dhuru, V., Hassan, K.A. and Brantley, W.A.: A Comparison of Separation Torque for Self-shearing Retention Pins. J Dent. Res., 64 (Special Issue), Abst #67, 1985.5

7. 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.

58. Hassan, K.A. and Dhuru, V.: Configuration and Bending Characteristics of Retention Pins”. Table Clinic Presentation, 115th Annual Meeting of Wisconsin Dental Association, Table Clinic Program, May 1985.

59. Hassan, K.A. and Prey, J. Microleakage Associated with Retention Pins.  Table Clinic Presentation, 114th Annual Meeting of Wisconsin Dental Association, Table Clinic Program, May 1984.

           Timetable for the 1st half of academic year 1428-1429H.

    

Time   Day	Loc.	8 – 9 am	9 – 12 am	12 – 1	1 – 2 pm	2 – 5 pm
SAT	Duc		RDS 561 (Sem.)	Noon Break	411 Lec.	422 Cln
	Muc
SUN	Duc		USC Cln
	Muc
MON	Duc		SBARD Sem.			411 Cln
	Muc
TUES	Duc		411 Cln
	Muc
WED	Duc		department meeting 411 Cln
	Muc

 

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