Department of Oral and Maxillofacial Surgery

Faculty of Dental Sciences

Faculty of Dental Sciences

University of Peradeniya

Dr. P.S.K. Nanayakkara

Senior Lecturer in Oral and Maxillofacial Surgery



Official Address :

Department of Oral and Maxillofacial Surgery
Faculty of Dental Sciences,
University of Peradeniya,
Peradeniya,
Sri Lanka


Email :

manjuatty@yahoo.com


Telephone :

+94-81-2397402


Personal Website :






Senior Lecturer in Anaesthesiology

  • MBBS- University of Peradeniya
  • MD in Anaesthesiology –University of Colombo
  • M AcF
    Research assistant-Nuclear Medicine Unit, Faculty of Medicine, University of Peradeniya 01.11.1995-10.04.1996
    Intern Medical Officer -26.04.1996 - 26.04.1997
    Medical Officer in Anaesthesia and Intensive care in Ministry of Health -26.04.1997-30.09.2001
    Lecturer probationary in Anaesthesiology, Faculty of Dental Sciences - 01.10.2001-01.04.2007
    Senior Lecturer in Anaesthesiology, Faculty of Dental Sciences, 2007-upto date
  • Specialist in Anaesthesia
  • Member-International Association for the Study of Pain (IASP)
  • Member-Physiological Society of Sri Lanka
  • Currently the Head of Division of Anaesthesiology and Head of the Department of Oral & Maxillofacial Surgery, Faculty of Dental Sciences
  • President –Sri Lanka Association for the Study of Pain (SLASP)
  • Chairperson- Cancer Care Service
  • Senior Treasurer-Buddhist Brotherhood, Faculty of Dental Sciences
  • Senior Treasurer- General Buddhist Brotherhood, University of Peradeniya


  • Visiting Appointments
  • Visiting lecturer in the Faculty of Allied Health Sciences, University of Peradeniya
  • Visiting Lecturer- Nurses Training School Kandy
  • Investigations on pain catostrophization in oral cancer patients.
  • Investigations on the effect of local anaesthetics on relieving Difficult mouth opening in patients with oral cancers and maxillofacial fractures.
  • Investigations on effects of conventional analgesics in orofacial pain
  • Investigations on changes of physiological parameters during cleft lip and palate surgeries
  • .
  • Studies on effects of facial abnormalities on gaining airway access
  • Haematological and Hepatic effects of Antiepileptic Treatment in Trigeminal Neuralgia-A retrospective study. R.Jayasinghe,V Senarathne, M.Sitheeque, S.Nanayakkara, R.Palegama, S.Athauda- presented in 37th Asia Pacific Dental Congress April 2015.

  • Occurence of “predictors of Difficult airway” and “Difficult intubation” in cleft lip and palate corrective surgeries in Teaching Dental Hospital Peradeniya-R.M.C.Sewwandi, S.Nanayakkara, Indu Nanayakkaras. presented in Faculty Research Sessions in the Faculty of Allied Health Sciences 2015

  • Factors affecting Post-operative infections in Oral cancer Patients in Teaching Dental Hospital Peradeniya. Madusanka P.P.L.U., S. Nanayakkara- presented in Faculty Research Sessions in the Faculty of Allied Health Sciences 2013

  • Factors affecting Post-operative infections in Trauma Patients in Teaching Dental Hospital Peradeniya. Nawaratne S, Nanayakkara S.- presented in Faculty Research Sessions in the Faculty of Allied Health Sciences 2013

  • Changes in cardiovascular parameters: A comparative study between Epidural analgesia and Intyramuscular Pethidine in LabourPain relief. Nanayakkara S, Fernando C, Wimalasiri L, Nanayakkara K. –presented in Annual scientific sessions of Sri Lanka College of Anaesthesiolosits 2005

  • Labour Pain relief: A comparative study between Walking epidural analgesia and intramuscular Pethidine, Nanayakkara S,Pallemulla R.-Presented in Annual Research sessions in PGIM 2006

  • A Randomized control trial on Post operative analgesia following Caesarean sections: Paracetamol with Codeine vs Paracetamol with Diclofenac Sodium-Nanayakkara S,Wimalasiri L-presented in Annual scientific sessions in Postgraduate Medical Centre Kandy-2005