Roshan Peiris, BDS, PhD

Roshan Peiris, BDS, PhD

Assistant Professor of Human Anatomy & Embryology

College of Health Sciences


Dr. Roshan Peiris received his doctoral degree in Physical anthropology from Nihon University, Japan. He started his academic carrier at the Department of Basic Sciences, Faculty of Dental Sciences, University of Peradeniya, Sri Lanka in 2001. He has been a Professor in Anatomy at the Faculty of Dental Sciences since 2016. In addition, he has served as an academic fellow at the School of Dentistry, Universiti Sains Malaysia from 2021-2023. Therefore, he has teaching human Anatomy and research experience of more than 20 years.  His current research focus is exploring the evolution and migratory pattern of ancient humans based on dental and physical anthropological findings and forensic anthropology.

Dr. Peiris was awarded the Japanese government scholarship to gain his PhD in Japan. He has received the Sri Lanka National Research Council Merit Award for Scientific publications, several best conference paper awards and several research grants and travel grants. He has delivered several prestigious orations and guest lectures. He has served as a reviewer for many top-tier international journals and co-editor in several editorial boards of scientific conferences. He has been a resource person for several academic workshops.

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 Research interests

  • Metric and non-metric skeletal variations of modern, historic and prehistoric human populations
  • Forensic anthropology
  • Human evolution, Pleistocene hunter-gatherer ecology and archaeological science
  • Metric and non-metric dental variations of modern, historic and prehistoric human populations

Selected Publications

Peiris R., Arambawatta K., Pitakotuwage N. (2022) Root and canal morphology of maxillary premolars and their relationship with the crown morphology. Journal of Oral Biosciences. 64(1):148-154. doi:10.1016/j.job.2021.12.004.

Weerarathne K.P.M., Pitawala H.M.T.G.A., Peiris H.R.D., Curnoe D. (2022) Mid-to-late Holocene environmental changes along the southern coast of Sri Lanka and their impact on sediment dynamics and human behavior. Ceylon Journal of Science. 51(Special Issue): 557-576.DOI:

Peiris H.R.D., Arambawatta K.S., Banneheka S.K., T.L. Nandasena, Pitakotuwage T. N. (2021) Gender and ethnic group differences in dental caries in a Sri Lankan population. Journal of Oral Health and Community Dentistry. 15(3):103-107.

Kapila Arambawatta, Anushka Abeysundara, Dhammika Ihalagedera, Gayani Nawarathna, Tharanga Nandasena, Roshan Peiris, Shyama Banneheka, Deepthi Nanayakkara (2021) Morphological analysis of cementoenamel junction in premolars of Sri Lankans. Anatomical Science International. DOI:

Arambawatta K., Peiris R., Hettiarachchi K., Dissanayake M., Ihalagedera D., Abeysundara A., Nawarathna L. (2021) Age Estimation using Pulp/Tooth Area Ratio of Maxillary and Mandibular Canines on Digital Orthopantomographs in a sample of Sri Lankan Population. International Journal of Forensic Odontology. 6(2):106-112.

Disanayake J., Samoath H., Manawaratne R., Nawarathna G., Disanayake., Peiris R., NanayakkaraD. (2020) Morphology and the position of the pterion in a Sri Lankan population. Sri Lanka Anatomy Journal. 4(1):10-21. DOI:

M.M.M. Arachchi, L.S. Navarathna, R. Peiris, D. Nanayakkara. (2019) A classification Based Approach to Predict the Gender Using Craniofacial Measurements. J. Hemanth et al. (Eds.): SLAAI-ICAI 2018, CCIS 890, pp. 301-314, Springer Nature Singapore Pte Ltd.

Peiris R., Vadysinghe A., Nanayakkara D. (2019) Morphometric Evaluation of the Foramen Magnum in a Sri Lankan Population. Sri Lanka Journal of Anatomy.3(II):29-41.

Kulatilake S., Peiris R. D., Perera H.N., Perera H. J. (2018) Out of Context, in Association: Human Remains Salvaged from the Mini-Athiliya Shell Midden, Sri Lanka. Asian Perspectives.57(1): 1-31.

Deepthi Nanayakkara, Ruwanthi Manawaratne, Harshana Sampath, Amal Vadysinghe, Roshan Peiris. (2018) Supraorbital nerve exits: positional variations and localization relative to surgical landmarks. Anatomy and Cell Biology. 51:1-6.

Teaching interests

Human macroscopic and microscopic anatomy

Reproduction and Early Development

Forensic anthropology


BDS, Faculty of Dental Science, University of Peradeniya, Sri Lanka, 1999

PhD, Department of Anatomy and Physical Anthropology, Nihon University Graduate

School of Dentistry at Matsudo, Japan, 2008