Faculty of Dental Sciences

University of Peradeniya

Faculty of Dental Sciences

University of Peradeniya

Prof HNS Soyza

Professor in Pharmacology



Official Address :

Department of Oral Medicine and Periodontology
Faculty of Dental Sciences,
University of Peradeniya,
Peradeniya,
Sri Lanka


Email :

niroshanis@pdn.ac.lk


Telephone :

+94-081-2397470


Personal Website :






Information on Research & Innovations


    2014

  • Ariyawardana. A., Panagoda, G. J., Fernando, H. N., Ellepola, A. N. B., Tilakaratne, W. M. & Samaranayake, L. P. Oral submucous fibrosis and oral yeast carriage- a case control study in a Sri Lankan patients. Mycoses.50:116-120:2007.


  • 2015

  • Soysa N.S, Alles N, Aoki K, Ohya K. Histomorphometric Analysis Reveals Late Onset Increased Bone Mineral Density and Reduced Bone Resorption Indices in Tibiae in a Single-LPS Injection Murine Model. Sri Lanka Dental Journal 2015; 45(03) 94-100.


  • 2016

  • Soysa NS, Alles N. Osteoclast function and bone-resorbing activity: An overviewBiochem Biophys Res Commun.2016; 476:115-120.
  • Alles NA and Soysa NS. Clinical Relevance of Understanding Liver Biochemical Markers in Managing Dental Patients. Sri Lanka Dental Journal 2016; 46(03) 88-95.
  • Alles NA and Soysa NS. The importance of Knowing patients’s clotting profile before dental treatment. Sri Lanka Dental Journal 2016; 46(03) 05-13.

  • 2018

  • Soysa NS, Alles N.The role of IL-3 in bone. J Cell Biochem. 2018 Oct 15. doi: 10.1002/jcb.27956.
  • Soysa NS, Cury JA, Alles N. Fluoride concentration and stability in commonly used dentifrices in Sri Lanka. Brazillian Journal of oral Sciences. 2018;17: e181244.
  • Soysa NS. Supplementary injection techniques in dentistry. Sri Lanka Dental Journal. 2018;48 (02): 55-71.
  • Soysa NS and Fonseka N. Oral adverse reactions to systemic medications mini review. Sri Lanka Dental Journal 2018; 48(01) 07-19.

  • 2019

  • Soysa NS, Soysa IB, Alles N. Efficacy of articaine vs lignocaine in maxillary and mandibular infiltration and block anesthesia in the dental treatments of adults: A systematic review and meta-analysis. J Investig Clin Dent. 2019 Mar 18:e12404. doi: 10.1111/jicd.12404.


  • 2014

    Jayawardena C, Takahashi N, Uchida T, Takano Y. Effects of systemic administration of a potential mineralization inhibitor on cementum pearl formation in guinea pig molars. in Proceedings of the Asian Science seminar, August 27- September 5, Okayama, Japan 2000. P 7-1 to 7-5.


  • 2015

  • N.R. A. Alles, T. Dissanayake, K. Rathnayake, N.S. Soysa. Pilot study on attitudes, knowledge and behaviour towards dental diseases among grade medical officers in Kandy district, Sri Lanka. (2015) .World Dental Federation, Annual World Dental Congress (FDI), Bangkok,
  • N.S. Soysa,N. Alles. Assessment of soluble fluoride concentrations in fluoridated tooth pastes marketed in Sri Lanka. (2015) .World Dental Federation, Annual World Dental Congress (FDI), Bangkok, Thailand.
  • N.S. Soysa,N. Alles,L. Tenuta, J. Cury. Availability of total, soluble and ionic fluoride concentration in commonly used dentifrices in Sri Lanka. (2015).Asia Pacific Dental Congress (APDC), Singapore.
  • G.K. M. Godakumara, E.G.C.N. Premathilake, N. Alles, P. H. P. Fernando, N.S. Soysa Elucidation of the relationship between a bone turnover marker, CTX, and some trace minerals.
  • (2015). Proceedings Peradeniya University International Research Session, Sri Lanka (iPURSE).
  • E.G.C.N. Premathilake,G.K.M. Godakumara, P. H. P. Fernando,N. Alles, N.S. Soysa. Pilot study on changes in some trace elements in long bones in ovariectomized mice. (2015).Proceedings Peradeniya University International Research Session, Sri Lanka (iPURSE).


  • 2016

  • Pieris HRR, Soysa HNS, Alles CNRA. Knowledge and self-foot care practices among diabetic patients, attending general hospital, mannar, Sri Lanka. (2016). Proceedings Peradeniya University International Research Session, Sri Lanka (iPURSE).
  • Gunaratne BRRN, Alles CNRA, Soysa NS. Attitudes towards complementary and alternative medicine among second year medical, dental, nursing and physiotherapy students at the university of peradeniya. (2016). Proceedings Peradeniya University International Research Session, Sri Lanka (iPURSE)
  • .
  • Godakumara GKM, Fernando PHP, Soysa HNS, Alles CNRA. Salaciareticulata (kothalahimbutu) and Psychotriasarmentosa (gonika) extracts ameliorates ovariectomy induced bone destruction. (2016). Proceedings Peradeniya University International Research Session, Sri Lanka (iPURSE).
    Text Book of Oral Medicine and Pathology “A Guide to Diagnosis and Treatment” 2013, JAYPEE Medical Publishers, India
    Basics in Pharmacology by S. Godage and Brothers (Pvt) Ltd. ISBN:9789553085429
  • College of Dentistry and Stomataology of Sri Lanka Oration “Oral Potentially Malignant Disorders and Oral Cancer Are We Doing Enough?” 31st year Annual Academic Sessions, College of Dentistry and Stomataology of Sri Lanka, 2018-03-19 Colombo
  • Analysis of anticandidal effects of P. pinnata – in collaboration with university of Hongkong -NRC research grant in 2010
  • University of Peradeniya – RG/ 2018/18/D
  • University of Peradeniya – RG/ 2016/28/D
  • Award for the best research paper at the annual scientific sessions of Sri Lanka Association of Oral and Maxillofacial Surgeons of Sri Lanka, 2013.
  • NRC Merit Award for Scientific Publication – 2016
  • “The awareness and knowledge of antibiotic use and resistance in an undergraduate population of University of Peradeniya.” Department of nursing, Faculty of allied health sciences, University of Peradeniya, Athukorala PANM (AHS/NUR/06/053) (completed).
  • N.M.A.W. Nishshanka (AHS/13/MLS/046). The establishment and characterization of a lps-induced periodontitis murine model
  • E.P.S. Madushan AHS/11/MLS/023 - Role of rel-b inhibition on alveolar bone loss in an experimental mouse model of periodontitis after ovariectomy
  • A.K.P.Nadeesha AHS/11/MLS/026 - In vitro evaluation of rel-b inhibition on osteoblasts differentiation And mineralization by a novel rel-b inhibitor, SN52
  • Pieris HRR - Assessment of knowledge and self-foot care practices among Type 2 diabetes patients attending the diabetic clinic- District General Hospital , Mannar
  • Research project of the MD restorative dentistry course of Dr. Gishan Edirisinghe “Mesiobuccal root canal morphology of the permanent maxillary first molar in a Sri Lankan population” (completed)