Omar Zidan PhD, MS, GPR

Associate Professor


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Associate Professor, Department of Restorative Sciences
Division of Operative Dentistry


PhD, Al Azhar University Faculty of Dentistry (Restorative), 1979
MS, University of Minnesota School of Dentistry (Dentistry), 1984
BDS, Cairo University Faculty of Dentistry (Dentistry), 1972
PNS, Cairo University College of Science (Sciences), 1968; University of Minnesota School of Dentistry (GPR), 1984

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Dr. Zidan is born in Cairo, Egypt where he received his undergraduate education. He is fluent in Arabic, English and French and has a good command of Danish. He received his post graduate education in Egypt, Denmark and the United Stares. Presently, he is an associate professor, Division of Operative Dentistry, Department of Restorative Sciences in the School of Dentistry, University of Minnesota.

Dr. Zidan research focus on the area of resin bonding and it's clinical applications. He authored/co-authored several publications in this field. His main activites focus on undergraduate education. He directs a course on how to use evidence-based dentistry to formulated clinical decisions in the area of Restorative Dentistry. Also, He directs a course to train the undergraduate on how to fabricate CadCam Cerec restorations. His clinical teaching activites focus on assisting undergraduate students with esthetic cases.

He is often invited to the middle east to lecture and offer hand-on courses on contemporary topics and esthetic dentistry.


Research Summary/Interests

  • Clinical applications of resin bonding
  • Diagnosis of dental caries
  • Natural products to prevent dental caries
  • Cad Cam restorations
  • Evidence based dentistry in the undergraduate curriculum
  • Application of digital technology in undergraduate education


Zidan, OStudies on the bonding of restorative resins to dental hard tissues. Ph.D. Dissertation, The Royal Dental College, Copenhagen, 1979.

Zidan, O., Asmussen, E. and Jorgensen, K.D.: Tensile strength of restorative resins. Scand. J. Dent. Res. 88: 285-289, 1980.

Zidan, O., Asmussen, E. and Jorgensen, K.D.: Correlation between tensile and bond strength of composite resins.Scand. J. Dent. Res. 88: 34-351, 1980.

Zidan, O., Asmussen, E. and Jorgensen, K.D.: Microscopical analysis of fractured resin etched enamel bonds. Scand. J. Dent. Res. 90: 286-291, 1982.

Zidan, O.Factors affecting precision of bonded restorations. M.S. Thesis, University of Minnesota, School of Dentistry, Minneapolis, MN, 1984.

Zidan, O. and ElDeeb, M.: The use of a dentinal bonding agent as a root canal sealer. J. Endo. 11: 176-178, 1985.

Zidan, O.: Relief patterns, bonding strength and fracture modes: A comparison of base metal alloys. Dental Mat. 1: 209-213, 1985.

Zidan, O., and Hill, G.: Phosphoric acid concentration; effect on surface loss and bonding strength. J. Prosth. Dent. 55: 388-392, 1986.

Hill, G., Zidan, O. and Duerst, L.: Retention of dowels: effect of using a dentinal bonding agent and an etched base metal alloy. J. Prosthet. Dent. 55: 691-693, 1986.

Hill, G., Zidan, O. and Gomez, O.: Bond strength of etched metals: effects of errors in surface area estimation. J. Prosthet. Dent. 55: 41-46, 1986.

Schultz, C.J., Streif, I., and Zidan, O.: Effect of sealant on the strength of teeth with and without proximal cavity preparations. Quintessence Internat, 17: 75-78, 1986.

Zidan, O., Al-Khatib, Z. and Gomez, O.: Obturation of root canal using the single cone gutta-percha technique and dentinal bonding agents. Internat. Endo. J. 20: 128-132, 1987.

Zidan, O., Gomez-Marin, O. and Tsuchiya, T.: A comparative study of the effects of dentinal bonding agents and application techniques on marginal gaps in class V cavities. J. Dent. Res. 66: 716-721, 1987.

Phair, C., Zidan, O., Gomez-Marin, O., and Han, S.: Marginal gap formation in the composite resin/glass ionomer cement Class V restorations. Dent. Mater. 4: 134-138, 1988.

Zidan, O. and AlJabab, A.: Evaluation of the bond mediated by eight DBA's to enamel and dentin. Dent. Mater. 6: 158-161,1990.

Zidan, O. and ElDeeb, M.: Restorative and endodontic management of an anomalous mandibular molar. Quintessence Intrenat. 22: 189-192,1991.

Chang, H., Zidan, O., Lee, I., and Gomez-Marin, O.: Resin-bonded fixed partial dentures: A recall study. J. Prosthet. Dent. 65;778-781, 1991.

Zidan, O., Ross, G., Lee, I., Gomez-Marin, and O.and Yeh S.: The effect of dentin pre-treatment and heat-augmented cure on marginal gap formation of a dentin bonding agent. Dent. Mater. 7:174-178.1991.

Gorodovsky, S, and Zidan, O: Retentive strength, disintegration, and marginal quality of luting cements., J. Prosthet. Dent.68(2): 269-74, 1992

Zidan, O and Ferguson, G.: Retentive strength evaluation of four luting agents related to crown preparation taper. J Prosthet Dent 89(6) 565-71.2003

Zidan, O. and AbdelKerim U: The effect of amalgam bonding on teeth weakened by cavity preparation. Dent Mater 19(7) 680-5, 2003

Badria F and Zidan O: Natural products for dental caries prevention. J Med Food, 7(3): 381-4, 2004