Department of
Basic Sciences

Faculty of Dental Sciences

Faculty of Dental Sciences

University of Peradeniya

Dr KSND Gunawardhana

Senior Lecturer in Biochemistry



Official Address :

Department of Basic Sciences
Faculty of Dental Sciences,
University of Peradeniya,
Peradeniya,
Sri Lanka


Email :

nlk_gunawardhana@yahoo.com


Telephone :

+94-081-2397551


Personal Website :






Senior Lecture in Biochemistry

    BDS - University of Peradeniya
    PhD - Yonsei University College of Dentistry, South Korea
  • Temporary Assistant Lecturer, Department of Oral Pathology, Faculty of Dental Sciences (2008 Aug- 2009 Feb)
  • Temporary Assistant Lecturer, Department of Oral and Maxillofacial Surgery, Faculty of Dental Sciences (2009 Feb- 2009 Dec)
  • Graduate student and Teaching Assistant , Department of Oral Biology, Yonsei University - College of Dentistry, Seoul, Korea (2010 -2014 August)
  • Grade II Dental Surgeon (HO/OMF) at District General Hospital- Nuwara Eliya (2014 Nov- 2017 Sep)
  • Senior Lecturer (Grade II), Division of Biochemistry, Department of Basic Sciences, Faculty of Dental Sciences (2017 Oct-Up to date)
    Life member of Sri Lanka Dental Association (SLDA)
  • Natural herbs in oral disease prevention
  • Bacterial gene expression and gene cloning


  • --Research Profile--
  • Gunawardhana KSND, Jayasooriya PR, Rambukewela IK, Tilakaratne WM. A clinico-pathological comparison between mandibular and maxillary ameloblastomas in Sri Lanka. Journal of Oral Pathology and Medicine 2010; 39(3):236-41.

  • Gunawardhana KSDN, Jayasooriya PR, Tilakaratne WM. Diagnostic dilemma of unicystic ameloblastoma: novel parameters to differentiate unicystic ameloblastoma from common odontogenic cysts. Journal of Clinical and Investigative Dentistry 2013; 5: 1-6.

  • • Kim JH, Lee DE, Gunawardhana KSND, Choi SH, Woo GH, Cha JH, Bak EJ, Yoo YJ. Effect of the interaction between periodontitis and type 1 diabetes mellitus on alveolar bone, mandibular condyle and tibia. Acta Odontologica Scandinavica 2014; 72(4): 265-273.

  • Kim J, Jang S, Kim A, Su H, Gunawardhana N, Jeon YE, Bak EJ, Kim JH, Cha JH. Role of bacterial γ-glutamyltranspeptidase as a novel virulence factor in bone-resorbing pathogenesis. Journal of Microbiology (Seoul, Korea) 2016, 54(5):396-402.

  • J Lee, ND Gunawardhana, S Jang, YH Choi, RP Illeperuma, A Kim, H Su, YA Hong, JH Kim, J Kim, DW Jung, IH Cha, EJ Bak, JH Cha. Effect of Areca nut on Helicobacter pylori-induced gastric diseases in mice. J Microbiol Biotechnol 2016, 26(10):1817-1823.

  • Sungil Jang, Hanfu Su, Faith C Blum, Sarang Bae, Yun Hui Choi, Aeryun Kim, Youngmin A Hong, Jinmoon Kim, Ji-Hye Kim, Niluka Gunawardhana, Yeong-Eui Jeon, Yun-Jung Yoo, D Scott Merrell, Linhu Ge, Jeong-Heon Cha. Dynamic expansion and contraction of cagA copy number in Helicobacter pylori impact development of gastric disease. mBio 2017, 8 (1).

  • Niluka Gunawardhana, Sungil Jang, Yun Hui Choi, Youngmin A Hong, Yeong-Eui Jeon, Aeryun Kim, Hanfu Su, Ji-Hye Kim, Yun-Jung Yoo, D Scott Merrell, Jinmoon Kim, Jeong-Heon Cha. Helicobacter pylori-Induced HB-EGF Upregulates Gastrin Expression via the EGF Receptor, C-Raf, Mek1, and Erk2 in the MAPK Pathway. Frontiers in cellular and infection microbiology 2017, 7: 541.