Faculty of Dental Sciences

University of Peradeniya

Faculty of Dental Sciences

University of Peradeniya

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Dr RMSHB Medawela

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 :

sumuduhimesha@dental.pdn.ac.lk


Telephone :

+94-081-2397401


Research gate:

https://www.researchgate.net


Google Scholar :

https://scholar.google.com/



Linkedin:

www.linkedin.com/in/




Information on Research & Innovations


Published Abstracts

    1. Medawela R.M.S.H.B, Jayasinghe R.D , Sittheeque M.A.M , Ranasinghe A.W , Pallegama R.W , Ratnayake D.R.D.L. Effectiveness of occlusal splint therapy on disc interference disorders of the Temporo Mandibular Joint -A Retrospective Study At 25th Annual Scientific Sessions-of College of Dentistry and Stomatlogy of Sri Lanka-2013
    2. R.M.S.H.B. Medawela, R.D. Jayasinghe, M.A.M. Sitheeque. Imminent malignant transformation of oral lichen planus - A case report. Annual Scientific Sessions of Sri Lanka association of Oral and Maxillofacial Surgeons-2013
    3. R.M.S.H.B. Medawela , A.A.A.K.Wimalarathna, M.A.M. Sitheeque, R.D. Jayasinghe. Preliminary study on demographic and clinical aspects of oral lichen planus and lichenoid reaction in group of sri lankan patients - A Retrospective study. FDI / CDA / SLDA Joint INTERNATIONAL CONFERENCE & 80th Anniversary Annual Scientific Sessions of Sri Lanka Dental Association (Recognized as a commendable paper presentation)
    4. R.M.S.H.B. Medawela, M.A.M. Sitheeque, R.D. Jayasinghe. Demographic, clinical and radiological aspects of degenerative joint disorders (Osteoarthritis and Osteoarthrosis) of Temporomandibular Joint in a group of Sri Lankan patients. Annual Scientific sessions of Sri Lanka Dental Association-2014
    5. RatnayakeD.R.D.L, Medawela R.M.S.H.B , Sitheeque M.A.M , Jayasinghe R.D. Oral squamous cell carcinoma without clinically evident risk factors: A report of three cases. Annual Scientific sessions of Sri Lanka Dental Association-2014
    6. L.A.H. Jayasinghe, P.M. Peiris,M.A.M. Sitheeque, R.D. Jayasinghe, R.M.S.H.B. Medawela. Demographic and clinical characteristics of 514 patients with Oral Lichen Planus (OLP) and Oral Lichenoid Lesions (OLL). Annual Scientific sessions of Sri Lanka Dental Association-2014
    7. Ratnayake D.R.D.L , Medawela R.M.S.H.B, Sittheeque M.A.M , Jayasinghe R.D, Jayathilake J.A.M.S, De Silva M.D.K. Awareness on risk of cross infection and infection control measures among patients attending dental hospital(teaching), Peradeniya, Sri Lanka. Annual Scientific sessions of Sri Lanka Dental Association(Kandy branch-2016)
    8. Medawela R.M.S.H.B, Ratnayake D.R.D.L , Marambe K.N, Jayasinghe R.D. Effectiveness of “Fill in the blanks” over multiple choice questions in assessing final year dental undergraduates. Annual Scientific sessions of Sri Lanka Dental Association(Kandy branch-2016) (Recognized as a best oral presentation)
    9. Medawela R.M.S.H.B, Ratnayake D.R.D.L , Senevirathne D.P.V.K.W, Jayasinghe R.D. Utilization of cone beam computed tomography in the dental hospital (teaching) peradeniya: A clinical audit. Annual Scientific sessions of Sri Lanka Dental Association(Kandy branch) -2016
    10. R.M.S.H.B. Medawela , D.R.D.L.Ratnayake, V.A. Gayathri, J.C.M. Jayasinghe, R.D. Jayasinghe, M.A.M.Sitheeque. Single needle arthrocentesis -approach for the management of anterior disk displacement without reduction: Report of ten cases. Annual Scientific sessions of Sri Lanka Dental Association 2016 (Recognized as a best oral presentation)
    11. R.M.S.H.B. Medawela , R.D. Jayasinghe, B.S.M.S.Siriwardena D.R.D.L.Ratnayake. A case report on Actinic Keratosis: A rarer entity among Sri Lankans. Annual Scientific sessions of Sri Lanka Dental Association 2016 (Recognized as a best poster presentation)
    12. Jayasinghe C, Medawela RMSHB, Gayathri A, Jayasooriya N and Jayasinghe RD. Evaluation of demographic, clinical and radiological features of odontogenic tumors and cysts identified on cone beam computed tomography in dental hospital Peradeniya. iPURSE 2016
    13. R M S H B Medawela, WMPSK Wijekoon , R D Jayasinghe. Pattern of mandibular third molar impaction and relationship to the Inferior Alveolar Canal: Retrospective Cone Beam Computed Tomography analysis in a group of Sri Lankan Patients. iPURSE 2016
    14. W.A.M.U.L Abeyasinghe, J.C.M Jayasinghe, H.G.R.N Weerasinghe, R.M.S.H.B Medawela, R.D Jayasinghe and B.S.M.S Siriwardena. Oral Lichen Planus: A clinico-pathological analysis of patients attended Dental Teaching Hospital, Peradeniya. iPURSE 2016
    15. R M S H B Medawela, N Ravisankar , M G C K Amarasingha , A M Attygalla , R K Dissanayake , W B M C R D Weerasekara, N S S Jayasuriya. Surgical repositioning of the premaxilla during Alveolar bone graft surgery in bi-lateral cleft palate patients: Different techniques adopted in fixation of premaxilla. 30th Annual Scientific Sessions of College of Dentistry and Stomatology Sri Lanka – 2017
    16. Medawela R M S H B , Ratnayake D R D L , Wijayatilake H D K , Siriwardane B S M S, Jayasinghe R D. Association between histopathologic and cone beam CT features of oral squamous cell carcinoma involving mandible. . The 21st international congress of Dental and Maxillofacial Radiology Kaohsiung, Taiwan- 2017
    17. Medawela RMSHB, Ravisankar N, Attygalla AM, Kapugama KDKG, Jayasuriya NSS. Oral Squamous cell carcinoma: Are we over treating? Proceedings of 14th Annual Scientific session of Sri Lanka association of Oral and Maxillofacial Surgeons
    18. MAKS Gunaratne, WMAS Sandaruwan, H Piyadigama, NSS Jayasuriya, RMSHB Medawela, AM Attygalla. Oral and Maxillofacial Infections presented to Dental Hospital Peradeniy: A Clinical Audit. Proceedings of 14th Annual Scientific session of Sri Lanka association of Oral and Maxillofacial Surgeons
    19. Medawela R M S H B, Jayasuriya NSS, Ratnayake D R D L, Attygalla AM, Siriwardene B S M S. A rare case of Squamous cell carcinoma Arising from a Odontogenic Keratocyst: A Case Report. Proceedings of 14th Annual Scientific session of Sri Lanka association of Oral and Maxillofacial Surgeons
    20. Bee Honey Wound Dressing – Success story in management of wound breakage in neck dissection: Case Series with Literature review. R M S H B Medawela, N S S Jayasuriya, K G K D Kapugama, A M Attygalla. Proceedings of 3rd Asian Maxillofacial Trainees Conference, Colombo, Sri Lanka-2017; 152
    21. Preliminary Study: quantitative analysis of lymph node yield in neck dissections for oral squamous cell carcinoma;”en block” vs. Separate level harvesting . L A H Jayasinghe, J Howshigan, S H Medawela, N Uthpali, N Ravisankar, N S S JAyasuriya, K Kapugama, A M Attygalla. Proceedings of 3rd Asian Maxillofacial Trainees Conference, Colombo, Sri Lanka-2017; 141
    22. R M S H B Medawela, N Ravisankar, N S S Jayasuriya, A M Attygalla. Neuro-sensory Evaluation of non-innervated free flaps in Head and Neck reconstruction: A Report of seven cases Proceedings of 31st annual scientific sessions of College of Dentistry and stomatology-2018:58-59
    23. R M S H B Medawela, Navini Mannapperuma, N S S Jayasuriya. Contribution of Specialists in Oral and Maxillofacial Surgery of Sri Lanka to scientific literature. Proceedings of 15th Annual Scientific session of Sri Lanka association of Oral and Maxillofacial Surgeons-2018: 34
    24. R M S H B Medawela, D R D L Ratnayake, H K Amarasinghe, N S S Jayasuriya, R D Jayasinghe, B S M S Siriwardene. Effectiveness of a community based early detection programme for ORAL CANCER using BRUSH BIOPSY CYTOLOGY to improve diagnostic accuracy and coverage of the estate population in Kandy district. Proceedings of MORCC Oral Health research symposium. 2018
    25. D R D L Ratnayake, R M S H B Medawela, R D Jayasinghe. (2019). Attitudes, confidence in practices and perceived barriers towards promotion of tobacco cessation in the dental setting among clinical dental students in Sri Lanka. Proceedings of 3rd international congress on OPMD, Oral cancer, Smokeless tobacco and Arecanut. 2019: 47
    26. R M S H B Medawela , D R D L Ratnayake , Bhishman Thevarajah (2019) Impairment of motor functions in limbs immediately following cervical spinal injury among male attendees at the accident and emergency service, National Hospital Sri Lanka: A clinical observation of a OMFS registrar. Proceedings of 16th Annual Scientific session of Sri Lanka association of Oral and Maxillofacial Surgeons-2019: 41
    27. Shanika Weerasinghe, Steena Wijedasa , Prabath Mahavidanage R M S H B Medawela, S A K J Kumara (2019). Etiology ‘kept out of sight’ in maxillofacial Injuries –Maxillofacial injuries due to RTA associated with stray animals: Report of 4 cases. Proceedings of 16th Annual Scientific session of Sri Lanka association of Oral and Maxillofacial Surgeons-2019: 47
    28. Steena Wijedasa, Shanika Weerasinghe, R M S H B Medawela, S A K J Kumara (2019). Shift in Epidemiological trends in Oral Submucous Fibrosis-Report of 4 cases in Adolescence at Gampaha District. Proceedings of 16th Annual Scientific session of Sri Lanka association of Oral and Maxillofacial Surgeons-2019: 45
    29. Dr. N.S.S. Jayasuriya, R M S H B Medawela, Dr. Y S Mohamed (2020). COVID-mask-line: Radiological phenomenon observed in Occipito mental view of COVID 19 suspects with maxillofacial injuries. Presented at 5TH ACOMS TRAINEE CONFERENCE( Virtual)
    30. Athukorala Isuru , Medawela Sumudu , Gunawardana Malika ,Jayasinghe Ruwan (2021). A retrospective study on the distribution of patients with oral potentially malignant disorders who attended Dental Hospital Peradeniya using geo-spatial analysis. Proceedings of 42nd APDC -2021: 141
    31. Gunasena C, Medawela R M S H B, Hettiarachchi P V K S, Jayasinghe RD (2021). Evaluation of the interpretational skill of dental panoramic radiographs among dental specialists, postgraduate trainees, undergraduates and general dental practitioners in Sri Lanka. Proceedings of i PURSE 2021
    32. Gunasena C, Medawela R.M.S.H.B, Jayasuriya N.S.S, Perera I.R, Ratnapreya S. The impact of SARS-CoV-2 virus in the practice of dentistry in Sri Lanka: Dental surgeons’ perspective. Proceedings of i PURSE 2021

Peer Reviewed Original Research Article

    1. Ratnayake D, Medawela S, Jayasinghe R, Jayathilake S, de Silva D, Sitheeque M. Awareness of risk of cross-infection and infection-control measures among patients attending University Dental Hospital, Peradeniya, Sri Lanka. J Investig Clin Dent. 2017 Mar 31. doi: 10.1111/jicd.12268. [Epub ahead of print] PubMed PMID: 28371484
    2. Medawela RMSHB and Ratnayake DRDL. Human Papilloma Virus: Emerging Risk Factor in Oral Squamous Cell Carcinoma among Asians. J Dental Sci 2017, 2(3): 000132
    3. Medawela, R. M. S. H. B., Ratnayake, D. R. D. L., Abeyasinghe, W. A. M. U. L., Jayasinghe, R. D., & Marambe, K. N. (2018). Effectiveness of “fill in the blanks” over multiple choice questions in assessing final year dental undergraduates. Educación Médica, 19(2), 72–76. https://doi.org/https://doi.org/10.1016/j.edumed.2017.03.010
    4. R.M. Sumudu Himesha B Medawela, Dugganna Ralalage Dilini Lalanthi Ratnayake, Wijeyapala Abesinghe Mudiyanselage Udari Lakshika Abeyasinghe, Ruwan Duminda Jayasinghe, Kosala Nirmalani Marambe. Effectiveness of “fill in the blanks” over multiple choice questions in assessing final year dental undergraduates La eficacia de «rellenar los espacios en blanco» sobre las preguntas de opción múltiple en la evaluación de estudiantes de último año. Educación Médica
    5. Medawela R M S H B, Ratnayake D R D L, Jayasooriya P R, Siriwardene B S M S, Tilakaratne W M , Jayasinghe R D . Malignant transformation of Oral Lichen Planus: The first two cases reported in Sri Lanka and literature review. Sri Lanka Dental Journal 2017; 47(01) 29-37
    6. Medawela RMSHB, Jayasuriya NSS, Ratnayake DRDL, Attygalla AM, Siriwardena BSMS. Squamous cell carcinoma arising from a keratocystic odontogenic tumor: a case report. J Med Case Rep. 2017 Dec 1;11(1):335. doi: 10.1186/s13256-017-1486-x. PubMed PMID: 29191248; PubMed Central PMCID: PMC5710129
    7. R.M.S.H.B. Medawela, N.S.S. Jayasuriya, Ravisankar Nutalapati, A.M. Attygalla, R.K. Dissanayake. Fixation techniques in surgical repositioning of the prognathic pre-maxilla during alveolar bone graft surgery in bi-lateral cleft lip and palate patients. The Sri Lanka Journal of Surgery 2018; 36(1): 42-44. doi: http://doi.org/10.4038/sljs.v36i1.8483
    8. Medawela RMSHB, et al. Pattern of Mandibular Third Molar Impaction and Relationship to the Inferior Alveolar Canal: Retrospective Cone Beam Computed Tomography Analysis in a Group of Sri Lankan Patients. J Dental Sci 2018, 3(5): 000184.
    9. D R D L Ratnayake, R M S H B Medawela, R D Jayasinghe, B S M S Siriwardena. A case report on Actinic cheilitis: a rarer entity among Sri Lankans. Ceylon Journal of Science 47(2) 2018: 207-209 DOI: http://doi.org/10.4038/cjs.v47i2.7519
    10. M Z M Zafraz, H J Suraweera, A M Attygalla, R M S H B Medawela. Free Vascularized Fibula graft for reconstruction of the defect following resection of Ewing’s sarcoma of the radius; a case report. The Sri Lankan Journal of Orthopedic Surgery. 2018:4(01): 50-54
    11. R M S H B Medawela, N. Ravisankar, N S S Jayasuriya, K G K D Kapugama and A M Attygalla. Close suction drain system made with 20 cc syringe and nasogastric tube (Ryle’s tube) for head and neck surgery: a Technical Note. Ceylon Journal of Science 47(3) 2018: 293-295 DOI: http://doi.org/10.4038/cjs.v47i3.7537
    12. Medawela RMSHB, Jayasuriya NSS, Kapugama KD, Attygalla AM. Bee Honey Wound Dressing-Success Story in Management of Wounds in Oral Cancer Patients. J Oral Maxillofac Surg. 2018 Jul 31. pii: S0278-2391(18)30738-9. doi: 10.1016/j.joms.2018.06.168. [Epub ahead of print] PubMed PMID: 30075135.
    13. Ravisankar N, Medawela R M S H B, Attygalla A M, Jayasooriya P R. (2019). Bronchogenic cyst of the neck occurring as a submandibular swelling in an adult: A case report based on a rare presentation Ceylon Journal of Science 48(2) 2019: 191-194 DOI: http://doi.org/10.4038/cjs.v48i2.7624
    14. Sumudu Medawela, Kanchana Kapugama, Nadeena Jayasuriya, Ravisankar Nutalapati, Manjula Attygalla(2019). Use of sterile 5-cc spoon as an ophthalmological retractor in orbital roof and floor reconstruction surgery. European Journal of Oral and Maxillofacial Surgery 2019 December;3(3):63-4. DOI: 10.23736/S2532-3466.19.00168-1
    15. Medawela SH, Kapugama KD, Nutalapati R, Jayasooriya PR. A rare case of hibernoma in the maxillofacial region mimicking a malignant salivary tumor. Eur J Oral Maxillofac Surg 2020;4:21-4. DOI: 10.23736/S2532-3466.19.00170-X
    16. Mohamed YS, Medawela RMSHB, Jayasuriya NSS. Letters to Editor : COVID-mask-line: radiological phenomenon observed in occipito mental view of COVID 19 suspects with maxillofacial injuries. Dent Update 2020; 47: 887-888. DOI: 10.12968/denu.2020.47.10.887
    17. Jayasuriya Nadeena Sri Swarnagupta, Ratnapreya Sakuntha, Kapugama Kanchana, Medawela R. M. Sumudu Himesha B. Comment on “Why Is Mandibular Third Molar Coronectomy Successful Without Concurrent Root Canal Treatment?” Journal of Oral and Maxillofacial Surgery. January 12, 2021 DOI:https://doi.org/10.1016/j.joms.2020.11.035
    18. Thalakiriyawa DS, Medawela RMSHB, Weerasinghe WMSN, Kumara SAKJ, Jayasuriya NSS (2020) Maxillofacial Injuries due to Motorcycle Accidents Caused by Stray Animals: An Etiology ‘Kept Out Of Sight’: A Report of 5 Cases. Trauma Cases Rev 6:086. doi.org/10.23937/2469-5777/1510086 Accepted: December 29, 2020: Published: December 31, 2020
    19. Jayasuriya, N. S. S., Perera, I. R., Gunasena, C., Ratnapreya, S., Dayabandara, M., Medawela, R. M. S. H. B., Attygalla, M., Wijekoon, P., & Kapugama, K. (2021). Perceived Satisfaction of Patients and Related Factors for Oral Surgery Student Dental Clinic: Evidence From Sri Lanka. Journal of Patient Experience. https://doi.org/10.1177/2374373521998817
    20. Medawela R M S H B , Ratnayake D R D L , Premathilake L K N , Jayasinghe R D (2021). Attitudes, Confidence in Practices and Perceived Barriers Towards the Promotion of Tobacco Cessation among Clinical Dental Undergraduates in Sri Lanka. Asian Pac J Cancer Care, 6 (2), 175-179. DOI:10.31557/APJCC.2021.6.2.175
    21. Jayasuriya NSS, Ratnapreya S, Kapugama K, Medawela RMSHB. Comment on "Why Is Mandibular Third Molar Coronectomy Successful Without Concurrent Root Canal Treatment?". J Oral Maxillofac Surg. 2021 Apr;79(4):737-738. doi: 10.1016/j.joms.2020.11.035. Epub 2021 Jan 13. PMID: 33450193.
    22. Medawela, R.M.S.H.B., Ratnayake, D.R.D.L., Gunathilake, R. (2021). The annual parade of The temple of the tooth as a potential setting for oral cancer awareness in Sri Lanka: an avenue to blend health and culture. Academia Letters, Article 4150. https://doi.org/10.20935/AL4150
    23. Athukorala, I., Medawela, R. M. S. H. B., Gunawardana, M., & Jayasinghe, R. D. (2022). GIS to Explore the Geographical Mysteries of Oral Cancer: Geospatial Distribution of Patients Diagnosed with Oral Potentially Malignant Disorders at the University Dental Hospital Peradeniya. Asian Pacific Journal of Cancer Care, 7(1), 29-35.
    24. Jayasuriya N S S ,Ratnapreya S, Medawela R M S H B, Cooray M P P K (2022). Simultaneous auto-tooth transplantation of an impacted lateral incisor to the alveolar bone graft site. Ceylon Journal of Science 51(2) 2022: 107-109. http://doi.org/10.4038/cjs.v51i2.8004

Books & Monographs

    Scholarly Books
    01. “Suwa nasana dumkola”- Dr. D.R.D.L. Ratnayake, Prof. R.D.Jayasinghe, Dr. R.M.S.H.B.Medawela ISBN: 978-955-42249-0-2
    02. “An introduction to Oral Biopsies (E Learning material) - Prof. R.D.Jayasinghe, Dr. R.M.S.H.B.Medawela, Dr.S.R.Gunawardane ISBN: 978-955-589-203-2
    03. “Intra oral Periapical Radiography” (E Learning material) - Prof. R.D.Jayasinghe, Ms. D.P.V.K.Senevirathne, Dr. R.M.S.H.B.Medawela ISBN:978-955-589-223-0
    04. “Picture Guide on Oral Lesions and Conditions”- Prof. R.D.Jayasinghe, Dr. R.M.S.H.B.Medawela ISBN:624-95353-0-5
    05. “Tips on Surgical removal of Impacted Mandibular Third Molar Teeth” - Dr R M S H B Medawela, Dr Nadeena Jayasuriya, Prof A M Attygalla. ISBN: ISBN 978-624-95353-1-2
    06. “Management Principles of Oral Squamous cell carcinoma” – Edited by Dr N S S Jayasuriya, Dr R M S H B Medawela, Prof A M Attygalla, Dr Saman Nanayakkara. ISBN 978-624-5828-00-5

    Book Chapters
  • Contributor to the National Guidelines for Management of Oral Cancer Sri Lanka, Cancer Control Programme, Lanka Sri Lanka Colombo 2020.

Orations, Keynote speeches, Invited lectures on your research

    Editorial Boards
    • Editorial board member of Open Access Journal of Dental Sciences

    Reviewer for Learned Journals
    • Asian Pacific Journal of Cancer Care - West Asia Organization for Cancer Prevention
    • ACADEMIA Letters
    • Journal of Patient Experience- SAGE Publications

Research Awards & Patents

  • Commendable paper presentation FDI / CDA / SLDA Joint international conference & 80th Anniversary Annual Scientific Sessions of Sri Lanka Dental Association - 2013
  • Best Oral Presentation -Annual Scientific sessions of Sri Lanka Dental Association(Kandy branch) 2016
  • Best Oral Presentaion- Annual Scientific sessions of Sri Lanka Dental Association -2016
  • Best Poster Presentaion- Annual Scientific sessions of Sri Lanka Dental Association -2016
  • International Association of Dental and Maxillofacial Radiologists association Research Travel Award- 2017
  • Best Oral Presentaion-14th Annual Scientific sessions of Sri Lanka Oral and Maxillofacial Surgeons-2017
  • 1st Runner up –Oral Presentaion-15th Annual Scientific sessions of Sri Lanka Association of Oral and Maxillofacial Surgeons-2018
  • Best Research Proposal – Postgraduate category – MORCC Oral Health Research Symposium 2018


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