Graduated from the University of Khartoum. Obtained a Master degree followed by PhD degree from the University of Manchester. Obtained a Fellowship in Dental Surgery from the Royal College of Surgeons in Ireland (FDSRCSI) and an intercollegiate fellowship in Restorative Dentistry (FFDRCSI Rest Dent) after having successfully completed an SAC (UK and Ireland) approved five year higher training pathway in Restorative dentistry during 1995-1999.
Research interests include dental materials, root canal anatomy, Implantology and maxillofacial rehabilitation and restorative dental oncology.
Examiner, Royal College of surgeons in Ireland since October 2000.
Previous examiner in the intercollegiate/exit fellowship in Restorative Dentistry during 2009-2013.
Member of the Board of the Faculty of Dentistry RCSI 2008-2015, 2017 to date
Formerly Vice Dean, Faculty of Dentistry, Royal College of Surgeons in Ireland April 2013- May 2015) and Director of Continuing Dental Education, Dublin Dental University Hospital (May 2005-October 2010).
Currently works as Associate Professor/Consultant in Restorative Dentistry and the Chief RCSI Examiner of the Faculty of Dentistry Examination Centre, Khartoum, Sudan
Internal and External examiner for MSc, Clinical Doctorate (D Ch Dent) and PhD degrees, Universities of Dublin, Khartoum and Alrabat (Sudan)
External examiner to undergraduate dental students in the universities of Alneelain, Rabat and Nile College in Sudan
Internal examiner to undergraduate dental students in the University of Dublin
Appointed as Acting Head of Department of Restorative Dentistry, Dublin Dental University Hospital in numerous occasions
Currently works as Head of Division of Restorative Dentistry and Periodontology, Dublin Dental university Hospital, Ireland
Published in regional and international dental periodicals in the areas of restorative dental materials, cavity preparation, root canal anatomy and restorative oncology
Refereed articles for a number of local and international journals
Member of: The International Association of Dental research (IADR) American Academy of Implant Dentistry (AAID) Prosthodontic Society of Ireland (PSI) Health Informatics Society, Ireland International Society for Maxillofacial Rehabilitation (ISMR) Royal Academy of Medicine in Ireland, Odontological Section (RAMI)
Publications and Further Research Outputs
A A A Fathalah, D Byrne, N Claffey, F Houston, O Omer, W A Brantley , In vitro study of retention of paired press-stud overdenture component attachments, Journal of Dental Health, Oral Disorders & , 6, 2017, p00215-
Nuha El-Mubarak, Neamat Abu-Bakr, Osama Omer, Yahia Ibrahim , Assessment of undergraduate students' tooth preparation for full veneer cast restorations, Open Journal of Stomatology, 4, (2), 2014, p43 - 48
Brody S, Omer O, McLoughlin J, Stassen L, The dentist's role within the multi-disciplinary team maintaining quality of life for oral cancer patients in light of recent advances in radiotherapy., Journal of the Irish Dental Association, 59, (3), 2013, p137-46
D'Arcy BL, Omer OE, Byrne DA, Quinn F, The reproducibility and accuracy of internal fit of Cerec 3D CAD/CAM all ceramic crowns., The European journal of prosthodontics and restorative dentistry, 17, (2), 2009, p73-7
Omer, O, MacCarthy, D, Nunn, J, Cotter, E, Oral health needs of the head and neck radiotherapy patient: 2. Oral and dental care before, during and after radiotherapy, Dental Update, 32, (10), 2005, p578-80, 582
Omer O, MacCarthy D, Nunn J, Cotter E, Oral health needs of the head and neck radiotherapy patient: 2. Oral and dental care before, during and after radiotherapy., Dental update, 32, (10), 2005, p575-6, 578-80, 582
MacCarthy D, Omer O, Nunn J, Cotter E., Oral health needs of the head and neck radiotherapy patient: 1. Epidemiology, effects of radiotherapy and role of the GDP in diagnosis, Dental Update, 32, (9), 2005, p512-4, 516-8, 521-2
Omer OE, Al Shalabi RM, Jennings M, Glennon J, Claffey NM, A comparison between clearing and radiographic techniques in the study of the root-canal anatomy of maxillary first and second molars., International endodontic journal, 37, (5), 2004, p291-6
al Shalabi RM, Omer OE, Glennon J, Jennings M, Claffey NM, Root canal anatomy of maxillary first and second permanent molars., International endodontic journal, 33, (5), 2000, p405-14
Amer ME, Omer OE, Bergquist J, Elderton RJ, Claffey N, Investigation of the operative response of a group of general dental practitioners to varying extents of proximal caries., European journal of dental education : official journal of the Association for Dental Education in Europe, 2, (2), 1998, p65-8
International Association of Dental Research (IADR)
International Society of Maxillofacial Rehabilitation (ISMR)
British Society of Restorative Dentistry
Prosthodontic Society of Ireland
Irish Endodontic Society
Implantology Group of International Association of Dental Research (IADR)
Dental Materials Group of International Association of Dental Research (IADR)
American Academy of Implant Dentistry
Irish Health Informatics Society