1. N. Abu-bakr, L. Han, A. Okamoto and M. Iwaku. “Effect of alcoholic & low pH       soft drinks on Fluoride release from CompomerJournal of Esthetic Dentistry, vol.

    12 issue 2,page 97-104, 2000.

2. N. Abu-bakr, L. Han, A. Okamoto and M. Iwaku. “Changes in the mechanical     properties and surface texture of Compomer immersed in various media Journal of

   Prosthetic Dentistry; 84,444-452, 2000

3. N. Abu-bakr, L. Han, A. Okamoto and M. Iwaku. “Color stability of compomer after immersion in various media”  Journal of Esthetic Dentistry, 12 (5), 258-263, 2000.
4. L. Han, N. Abu-bakr, A. Okamoto and M. Iwaku. “WDX study of the resin-dentin  interface on wet vs. Dry dentinDental Materials Journal, 19, (3), 317-325, Sept. 2000.
5. L. Han, N. Abu-bakr, A. Okamoto and M. Iwaku “Study of the Fluoridated Adhesive Resin Cement-Fluoride Release, Fluoride Uptake and Acid Resistance of  Tooth Structures.”

Dent Materials Journal, vol. 20(1): 114-122, Jan 2001.

6. N. Abu-bakr, L. Han, A. Okamoto and M. Iwaku. “Evaluation of the surface       roughness of Compomer by Laser Scanning Microscope.” Dental Materials Journal,

    vol. 20 (1): 172-180, June 2001.  

7. Shigetani Y, Okamoto A, Abu-Bakr N, Iwaku M. “A study of cavity preparation by Er:YAG laser-observation of hard tooth structures by laser scanning microscope 

    and examination of the time necessary to remove caries.”Dental Materials Journal,

   vol. 21 (1): 20-31, March 2002.

8.  Shigetani Y, Tate Y, Okamoto A, Iwaku M, Abu-Bakr N. “A study of cavity      preparation by Er:YAG laser. Effects on the marginal leakage of composite resin

  1. Dental Materials Journal, vol. 21 (3): 238-49, Sept. 2002.
9. Linlin HAN, Edward CV1, Mu LI, Kazuaki NIWANO, Neamat AB2, AkiraOKAMOTO, Naoko HONDA and Masaaki IWAKU “Effect of Fluoride Mouth Rinse

on Fluoride Releasing and Recharging from Aesthetic Dental Materials” , Dent Mater    

    J. 21(4) pp.285 – 295. 2002.

10. Noriko Takei, Masayoshi Fukushima, Takashi Fukuda, Koji Shibuya, Masaaki Iwakuand N.ABU-BAKR. “Order-made Oral Care for the Elderly based on an Assessment

     of their Independence and Oral Condition -(II) Comparison of Oral Microbes between

    Independent and Dependent Elderly, and Effectiveness of the Oral Care”. Journal of 

   Japan Gerodontology, 17(3), 312-320, 2002.

11. Y. Shigetani, A.Okamoto, N. Abu-bakr& K. Tanabe, S. Kondo & M. Iwaku. “Caries      diagnosis using a Laser Fluorescence system-Observation of Auto fluorescence of

    Dental CariesDental Materials Journal, vol.22 (1): 56-65 March 2003

12. Shigetani, Y., Tate, Y., Okamoto, A., Iwaku, M. and Abu-Bakr, N. “Study on       Microstructure of Adhesive Interface after Removal Caries by Er:YAG laser.”

Niigata Dental Journal 33(1), 49-55, 2003.

13. Ahmed H., Abu-bakr N., Yahia N., Ibrahim Y. “Root and canal morphology of          Sudanese Permanent Mandibular MolarsInternational Endodontic Journal, 40,

      766–771, 2007.

14. Shigetani Y, Takenaka S,  Okamoto A. Abu-Bakr N,  Iwaku  M, Okiji N. “Impact of       Streptococcus mutans on the generation of fluorescence from artificially induced

      enamel and dentin carious lesions in vitro”Odontology   96:21–25, 2008.

15.  ElMubarak A H, Abu-bakr N H, Ibrahim Y E. “Postoperative Pain in Multiple-visit         and Single-visit Root Canal Treatment,Journal of Endodontic, 36:1:pages 36-39,
16. Abu-bakr N H. “Clinical update (1): Fixed Prosthetic Provisional restorations.”Sudan Dental Journal, No. 6. Pages 15-17, Jun 2010.
17.  Mohamed A, Abu-bakr N.Assessment of Crown, Bridge Work Quality among       Sudanese Dental PractitionersThe Journal of India Prosthodontic Society, 10:1

      pages 53-56, 2010.

18. Dafalla A A., Abu-bakr N H., Ibrahim Y E. An in vitro comparison of hand and rotary instruments in preparing root canal systemIranian Endodontic Journal, 5:4 167-173, Fall 2010.
19. Kashan S A, Abu-bakr N H, Ibrahim Y E. “Pilot study on relation of the periapical      status and quality of endodontic treatment in an adult Sudanese population”Archives

     of Orofacial Sciences (2011), 6(1): 3-8.

20. Elsayed R, Abu-bakr N, Ibrahim Y. “Quality of root canal treatment performed         by undergraduate dental student at University of Khartoum, SudanAustralian

      Endodontic Journal, 2011; 37: 56-60.

21. Aledrissy HI, Abubakr NH, Yahia NA, IbrahimYE. “Coronal microleakage for        readymade and hand mixed temporary filling materials”Iranian Endodontic

      Journal 2011;6(4):155-159.

  1. Elamin I M., Abu-bakr N H., Ibrahim Y E. “Prevalance of Dental Abrasion among

      Sudanese Patients” Journal of Sudanese Dental association (JSDA) 2011, 1:15-19.

23. Khalifa N, Allen PF, Abu-Bakr NH, Abdel-Rahman ME, Abdelghafar KO.“A survey

 

of Oral Health in a Sudanese Population.” BMC Oral Health 2012 Feb 24;12(1):5.

24. K G Ibrahim, N H Abu-bakr, Y E Ibrahim “Prevalance of dental abfraction among a

sample of Sudanese patients.” Arch OrofacSci(2012), 7(2): 50-55.

25.Elmakki F, Abu-bakr N, Ibrahim Y. “ Comparative microleakage study of twoobturation systems: Resilon/Ephiphany and gutta-percha/AH Plus”

Accepted for publication at IEJ Iranian Endodontic Journal 2012;7(3):139-143

26. O.O. Kheiry, N H Abu-bakr, Y E Ibrahim “Investigation of the Relationship between         Dental Anxiety and Trait Anxiety among a sample of Sudanese patients” Professional         Accepted for publication at the Indian journal of Stomatology for publishing in        Volume 4, Issue 3, 2013
27. Abeir Ali Ibrahim BDS, MSc, NehalBasheerFadlalla BDS, NorelhudaFathalrahmanNory BDS, Neamat Hassan Abu-bakr*BDS, DSS,MDSc, PhD. “Difficulties in

Performing Root Canal Treatment among Dental Students in Sudan” Indian Journal

of Dentistry, 2012; October-December volume 3,Number 4; pp 196-200.

28.Nadia Khalifa, Patrick F. Allen, Neamat H. Abu-bakr and Manar E. Abdel-Rahman.“Factors associated with tooth loss and prosthodontic status among Sudanese adults”

Journal of Oral Science, Vol. 54, No. 4, 303-312, 2012.

29.Nadia Khalifa, Patrick F. Allen, Neamat H. Abu-bakr and Manar E. Abdel-Rahman.“Psychometric Properties and Performance of the Oral Health Impact Profile (OHIP14s-

ar) in Sudanese adults” Accepted for publication at the Journal of Oral Science.