2025
Journal - Research Article
Andrade Villalobos, M., Bennani, V., Aarts, J. M., & Ratnayake, J. (2025). Accuracy of intra-oral scanners for full crown tooth preparations with subgingival margins: A systematic review. European Journal of Prosthodontics & Restorative Dentistry, 33(1), 104-112. doi: 10.1922/EJPRD_2812Matias09
Veerasamy, A., Lyons, K., Crabtree, I., Ratnayake, J., & Brunton, P. (2025). Nursing students’ perspectives toward providing oral health care for older people. International Journal of Dentistry, 2025, 5545284. doi: 10.1155/ijod/5545284
Ratnayake, J., Ramesh, N., Gould, M. L., Mucalo, M. R., & Dias, G. J. (2025). Silicate-substituted bovine-derived hydroxyapatite as a bone substitute in regenerative dentistry. Journal of Applied Biomaterials & Functional Materials. Advance online publication. doi: 10.1177/22808000251314302
Lin, J., Bennani, V., Aarts, J. M., Brunton, P., & Ratnayake, J. (2025). Factors influencing success rate of ceramic veneers on endodontically treated anterior teeth: A systematic review. Journal of Prosthetic Dentistry, 133(1), 62-70. doi: 10.1016/j.prosdent.2023.10.031
2024
Journal - Research Article
Qiu, P., Bennani, V., Cooper, P., Dias, G., & Ratnayake, J. (2024). Surface chemistry on PEEK surfaces: From enhanced biofunctionality to improved surface modifiability. Applied Materials Today, 41, 102523. doi: 10.1016/j.apmt.2024.102523
Ngah, N. A., Ratnayake, J., Dias, G. J., Tong, D. C., Mohd Noor, S. N. F., Cooper, P. R., & Hussaini, H. M. (2024). Physicochemical and biocompatibility characterisation of a 3D lyophilised platelet-rich fibrin scaffold for cleft lip and palate repair. Journal of Applied Biomaterials & Functional Materials. Advance online publication. doi: 10.1177/22808000241289208
Gould, M. L., Downes, N. J., Woolley, A. G., Hussaini, H. M., Ratnayake, J. T., Ali, M. A., Friedlander, L. T., & Cooper, P. R. (2024). Harnessing the regenerative potential of purified bovine dental pulp and dentin extracellular matrices in a chitosan/alginate hydrogel. Macromolecular Bioscience. Advance online publication. doi: 10.1002/mabi.202400254
Ratnayake, J., Gould, M., Ramesh, N., Mucalo, M., & Dias, G. (2024). A porous fluoride-substituted bovine-derived hydroxyapatite scaffold constructed for applications in Bone Tissue Regeneration. Materials, 17, 1107. doi: 10.3390/ma17051107
Jum'ah, A., Kothari, S., Gray, A. R., Ratnayake, J., Leov, F., Lyons, K., & Brunton, P. A. (2024). A randomized clinical trial investigating the effect of three vital tooth bleaching protocols on oral health-related quality of life. Saudi Dental Journal, 36(1), 77-83. doi: 10.1016/j.sdentj.2023.09.010
Journal - Research Other
Choudhury, M., Brunton, P., Dias, G., Schwass, D., Meledandri, C., Ratnayake, J., Pletzer, D., & Tompkins, G. (2024). Gold nanoparticles as innovative therapeutics for oral mucositis: A review of current evidence. Drug Delivery & Translational Research. Advance online publication. doi: 10.1007/s13346-024-01748-x
Imran, E., Mei, M. L., Li, K. C., Ratnayake, J., Ekambaram, M., & Cooper, P. R. (2024). Dental applications of ion-substituted hydroxyapatite: A review of the literature. Dentistry Journal, 12, 304. doi: 10.3390/dj12100304
Prasad Kumara, P. A. A. S., Deng, X., Cooper, P. R., Cathro, P., Dias, G., Gould, M., & Ratnayake, J. (2024). Montmorillonite in dentistry: A review of advances in research and potential clinical applications. Materials Research Express, 11, 072001. doi: 10.1088/2053-1591/ad62c2
Choudhury, M., Brunton, P., Schwass, D., Pletzer, D., Ratnayake, J., Dias, G., & Tompkins, G. (2024). Effectiveness of gold nanoparticles in prevention and treatment of oral mucositis in animal models: A systematic review. Systematic Reviews, 13(1), 39. doi: 10.1186/s13643-023-02425-9
Conference Contribution - Published proceedings: Abstract
Khurshid, Z., Alibrahim, B., Faheemuddin, M., Ashi, H., Alfaraj, A., Moustafa Ali, R. M., … Ratnayake, J. (2024). Dental implant bone grafting with camel dentine derived hydroxyapatite. International Dental Journal, 74, (pp. S229-S230). doi: 10.1016/j.identj.2024.07.084
2023
Chapter in Book - Research
Ratnayake, J., Camilleri, J., Haththotuwa, T. N., & Huang, J. (2023). In vitro biological testing of dental materials. In G. J. Seymour, M. P. Cullinan, N. C. K. Heng & P. R. Cooper (Eds.), Oral biology: Molecular techniques and applications: Methods in molecular biology (Vol. 2588). (3rd ed.) (pp. 505-524). New York, NY: Springer. doi: 10.1007/978-1-0716-2780-8_31
Journal - Research Article
Ajay Sharma, L., Ramesh, N., Sharma, A., Ratnayake, J. T. B., Love, R. M., Alavi, S. E., Wilson, M. J., & Dias, G. J. (2023). In vitro effects of wool-derived keratin on human dental pulp-derived stem cells for endodontic applications. British Journal of Oral & Maxillofacial Surgery. Advance online publication. doi: 10.1016/j.bjoms.2023.08.240
Talesara, V., Bennani, V., Aarts, J., Ratnayake, J., Khurshid, Z., & Brunton, P. (2023). Accuracy of digitally coded healing abutments: A systematic review. Saudi Dental Journal, 35, 891-904. doi: 10.1016/j.sdentj.2023.08.006
Khurshid, Z., Alfarhan, M. F. A., Bayan, Y., Mazher, J., Adanir, N., Dias, G. J., Cooper, P. R., & Ratnayake, J. (2023). Development, physicochemical characterization and in-vitro biocompatibility study of dromedary camel dentine derived hydroxyapatite for bone repair. PeerJ, 11, e15711. doi: 10.7717/peerj.15711
Khashashneh, M., Ratnayake, J., Choi, J. J. E., Mei, L., Lyons, K., & Brunton, P. (2023). The effect of 10% carbamide peroxide dental bleaching on the physical properties of Invisalign aligners: An in vitro study. Materials, 16, 4125. doi: 10.3390/ma16114125
Gould, M. L., Ratnayake, J. T. B., Ramesh, N., Powlay, T. J., Curnow, O. J., Staiger, M. P., & Dias, G. J. (2023). In vivo biocompatibility of non-derivatized cellulose regenerated using ionic liquids. Journal of Polymers & the Environment, 31, 1335-1350. doi: 10.1007/s10924-022-02640-w
Ahmed, H., Ratnayake, J., Cathro, P., & Chandler, N. (2023). The effect of an additional application of sealer prior to backfilling in the Continuous Wave of Condensation technique. Australian Endodontic Journal, 49, 344-350. doi: 10.1111/aej.12658
Journal - Research Other
Khurshid, Z., Adanir, N., Ratnayake, J., Dias, G., & Cooper, P. R. (2023). Demineralized dentin matrix for bone regeneration in dentistry: A critical update. Saudi Dental Journal. Advance online publication. doi: 10.1016/j.sdentj.2023.11.028
Dohan, Z., Friedlander, L. T., Cooper, P. R., Li, K.-C., Ratnayake, J. T., & Mei, M. L. (2023). In vitro models used in the formation of root caries lesions: A review of the literature. Dentistry Journal, 11, 269. doi: 10.3390/dj11120269
Yang, R., Zhao, R., Chaudry, F., Wang, T., Brunton, P., Khurshid, Z., & Ratnayake, J. (2023). Modern sedative agents and techniques used in dentistry for patients with special needs: A review. Journal of Taibah University Medical Sciences. Advance online publication. doi: 10.1016/j.jtumed.2023.10.004
Cathro, P., Smith, M., Ratnayake, J., & Heithersay, G. (2023). Micro-CT evaluation of spontaneous apexification of an immature tooth following trauma. Case Reports in Dentistry, 2023, 3779225. doi: 10.1155/2023/3779225
Imran, E., Cooper, P. R., Ratnayake, J., Ekambaram, M., & Mei, M. L. (2023). Potential beneficial effects of hydroxyapatite nanoparticles on caries lesions in vitro: A review of the literature. Dentistry Journal, 11, 40. doi: 10.3390/dj11020040
2022
Journal - Research Article
Khurshid, Z., Alfarhan, M. F., Mazher, J., Bayan, Y., Cooper, P. R., Dias, G. J., … Ratnayake, J. (2022). Extraction of hydroxyapatite from camel bone for bone tissue engineering application. Molecules, 27(22), 7946. doi: 10.3390/molecules27227946
Cai, M., Ratnayake, J., Cathro, P., Gould, M., & Ali, A. (2022). Investigation of a novel injectable chitosan oligosaccharide-bovine hydroxyapatite hybrid dental biocomposite for the purposes of conservative pulp therapy. Nanomaterials, 12, 3925. doi: 10.3390/nano12213925
Mansoor, A., Khurshid, Z., Mansoor, E., Khan, M. T., Ratnayake, J., & Jamal, A. (2022). Effect of currently available nanoparticle synthesis routes on their biocompatibility with fibroblast cell lines. Molecules, 27, 6972. doi: 10.3390/molecules27206972
Ratnayake, J., Veerasamy, A., Ahmed, H., Coburn, D., Loch, C., Gray, A. R., Lyons, K. M., Heng, N. C. K., Cannon, R. D., … Brunton, P. A. (2022). Clinical and microbiological evaluation of a chlorhexidine-modified glass ionomer cement (GIC-CHX) restoration placed using the atraumatic restorative treatment (ART) technique. Materials, 15, 5044. doi: 10.3390/ma15145044
Khurshid, Z., Asiri, F. Y. I., Najeeb, S., & Ratnayake, J. (2022). The impact of autologous platelet concentrates on the periapical tissues and root development of replanted teeth: A systematic review. Materials, 15, 2776. doi: 10.3390/ma15082776
Yong, D., Choi, J. J. E., Cathro, P., Cooper, P. R., Dias, G., Huang, J., & Ratnayake, J. (2022). Development and analysis of a hydroxyapatite supplemented calcium silicate cement for endodontic treatment. Materials, 15(3), 1176. doi: 10.3390/ma15031176
Kumar Yadalam, P., Madapusi Balaji, T., Varadarajan, S., Alzahrani, K. J., Al-Ghamdi, M. S., Ali Baeshen, H., … Ratnayake, J., & Patil, S. (2022). Assessing the therapeutic potential of angomelatine, ramelteon, and melatonin against SARS-Cov-2. Saudi Journal of Biological Sciences, 29, 3140-3150. doi: 10.1016/j.sjbs.2022.01.049
Ratnayake, J., Guan, G., Polonowita, A., Gray, A. R., Loch, C., Li, K. C., Waddell, J. N., Lyons, K., & Brunton, P. A. (2022). Measuring changes in jaw opening forces to assess the degree of improvement in patients with temporomandibular disorders. Applied Sciences, 12(3), 1224. doi: 10.3390/app12031224
Olson, H., Ratnayake, J., Senthilkumar, A., Quaranta, A., & Meldrum, A. (2022). Working characteristics for practicing dental hygienists in two countries in different hemispheres. International Journal of Dental Hygiene, 20, 209-218. doi: 10.1111/idh.12538
Journal - Research Other
Khashashneh, M., Ratnayake, J., Choi, J. J. E., Mei, L., Lyons, K., & Brunton, P. A. (2022). The effectiveness of dental bleaching during orthodontic treatment with clear aligners: A systematic review. Applied Sciences, 12(21), 11274. doi: 10.3390/app122111274
Arora, S., Cooper, P. R., Ratnayake, J. T., Friedlander, L. T., Rizwan, S. B., Seo, B., & Hussaini, H. M. (2022). A critical review of in vitro research methodologies used to study mineralization in human dental pulp cell cultures. International Endodontic Journal, 55(Suppl. 1), 3-13. doi: 10.1111/iej.13684
Journal - Professional & Other Non-Research Articles
Ratnayake, J. (2022). [Review of the book Understanding Platelet-Rich Fibrin]. New Zealand Dental Journal, 118(3), 115. [Book Review].
Ratnayake, J. (2022). [Review of the book Dermal fillers for dental professionals]. New Zealand Dental Journal, 118(2), 76. [Book Review].
Conference Contribution - Published proceedings: Abstract
Choudhury, M., Tompkins, G., Brunton, P., Dias, G., Pletzer, D., & Ratnayake, J. (2022). Gold nanoparticles against oropharyngeal pathogens in cancer therapy. New Zealand Dental Journal, 118(4), (pp. 168). [Abstract]
2021
Chapter in Book - Research
Ramesh, N., Ratnayake, J. T. B., & Dias, G. J. (2021). Calcium-based ceramic biomaterials. In C. Wen (Ed.), Structural biomaterials: Properties, characteristics, and selection. (pp. 333-394). Duxford, UK: Woodhead Publishing. doi: 10.1016/B978-0-12-818831-6.00011-2
Journal - Research Article
Ngah, N. A., Dias, G. J., Tong, D. C., Mohd Noor, S. N. F., Ratnayake, J., Cooper, P. R., & Hussaini, H. M. (2021). Lyophilised platelet-rich fibrin: Physical and biological characterisation. Molecules, 26(23), 7131. doi: 10.3390/molecules26237131
Brunton, P. A., Ratnayake, J., Bodansky, H. J., Mei, L., Veerasamy, A., & Hall, R. (2021). An intraoral device for weight loss: Initial clinical findings. British Dental Journal. Advance online publication. doi: 10.1038/s41415-021-3081-1
Aghoghovwia, B. E., Okpe, O., McIntyre, E. A., Taniyohwo, E. M., & Ratnayake, J. T. (2021). A brief review on erythropoietin and mesenchymal stem cell therapies for paediatric neurological disorders. Current Stem Cell Reports, 7, 95-107. doi: 10.1007/s40778-021-00189-3
Journal - Research Other
Chen, L., Al-Bayatee, S., Khurshid, Z., Shavandi, A., Brunton, P., & Ratnayake, J. (2021). Hydroxyapatite in oral care products: A review. Materials, 14, 4865. doi: 10.3390/ma14174865
Zhao, R., Yang, R., Cooper, P. R., Khurshid, Z., Shavandi, A., & Ratnayake, J. (2021). Bone grafts and substitutes in dentistry: A review of current trends and developments. Molecules, 26(10), 3007. doi: 10.3390/molecules26103007
Oliveira, É. R., Nie, L., Podstawczyk, D., Allahbakhsh, A., Ratnayake, J., Brasil, D. L., & Shavandi, A. (2021). Advances in growth factor delivery for bone tissue engineering. International Journal of Molecular Sciences, 22, 903. doi: 10.3390/ijms22020903
Ngah, N. A., Ratnayake, J., Cooper, P. R., Dias, G. J., Tong, D. C., Mohd Noor, S. N. F., & Hussaini, H. M. (2021). Potential of lyophilized platelet concentrates for craniofacial tissue regenerative therapies. Molecules, 26, 517. doi: 10.3390/molecules26030517
Journal - Professional & Other Non-Research Articles
Ratnayake, J. (2021). [Review of the book The tongue]. New Zealand Dental Journal, 117(3), 158. [Book Review].
2020
Journal - Research Article
Ratnayake, J., Guan, G., Polonowita, A., Li, K. C., Gray, A., Waddell, J. N., Loch, C., & Brunton, P. A. (2020). Can the measurement of jaw-opening forces assist in the diagnosis of temporomandibular disorders? Journal of Oral & Facial Pain & Headache, 34(3), 199-205. doi: 10.11607/ofph.2587
Sarfaraz, S., Shabbir, J., Mudasser, M. A., Khurshid, Z., Al-Quraini, A. A. A., Abbasi, M. S., Ratnayake, J., & Zafar, M. S. (2020). Knowledge and attitude of dental practitioners related to disinfection during the COVID-19 pandemic. Healthcare, 8(3), 232. doi: 10.3390/healthcare8030232
Huang, J., Ratnayake, J., Ramesh, N., & Dias, G. J. (2020). Development and characterization of a biocomposite material from chitosan and New Zealand-sourced bovine-derived hydroxyapatite for bone regeneration. ACS Omega, 5, 16537-16546. doi: 10.1021/acsomega.0c01168
Ramesh, N., Ratnayake, J. T. B., Moratti, S. C., & Dias, G. J. (2020). Effect of chitosan infiltration on hydroxyapatite scaffolds derived from New Zealand bovine cancellous bones for bone regeneration. International Journal of Biological Macromolecules, 160, 1009-1020. doi: 10.1016/j.ijbiomac.2020.05.269
Ratnayake, J. T., Ross, E. D., Dias, G. J., Shanafelt, K. M., Taylor, S. S., Gould, M. L., Guan, G., & Cathro, P. R. (2020). Preparation, characterisation and in-vitro biocompatibility study of a bone graft developed from waste bovine teeth for bone regeneration. Materials Today Communications, 22, 100732. doi: 10.1016/j.mtcomm.2019.100732
Journal - Research Other
Feroz, S., Muhammad, N., Ratnayake, J., & Dias, G. (2020). Keratin-based materials for biomedical applications. Bioactive Materials, 5(3), 496-509. doi: 10.1016/j.bioactmat.2020.04.007
2019
Journal - Research Article
Lu, E. M.-C., Ratnayake, J., & Rich, A. M. (2019). Assessment of proliferating cell nuclear antigen (PCNA) expression at the invading front of oral squamous cell carcinoma. BMC Oral Health, 19, 233. doi: 10.1186/s12903-019-0928-9
Smith, A., Scott, I., Ratnayake, J., Newsham-West, K., & Cathro, P. (2019). An intervention study: Does a cognitive reappraisal technique reduce the perceived stress in fourth-year dental students in New Zealand? International Journal of Dentistry, 2019, 5864591. doi: 10.1155/2019/5864591
Loch, C., Ratnayake, J., Veerasamy, A., Cathro, P., Lee, R., & Brunton, P. A. (2019). Direct restorations, endodontics, and bleaching: Materials and techniques used by general dentists of New Zealand. International Journal of Dentistry, 2019, 6327171. doi: 10.1155/2019/6327171
Brunton, P. A., Ratnayake, J., Loch, C., Veerasamy, A., Cathro, P., & Lee, R. (2019). Indirect restorations and fixed prosthodontics: Materials and techniques used by general dentists of New Zealand. International Journal of Dentistry, 2019, 5210162. doi: 10.1155/2019/5210162
Race, J., Zilm, P., Ratnayake, J., Fitzsimmons, T., Marchant, C., & Cathro, P. (2019). Efficacy of laser and ultrasonic-activated irrigation on eradicating a mixed-species biofilm in human mesial roots. Australian Endodontic Journal, 45, 317-324. doi: 10.1111/aej.12334
Conference Contribution - Published proceedings: Abstract
Ratnayake, J., Guan, S., Polonowita, A., Li, K. C., Waddell, N., Loch, C., Gray, A., & Brunton, P. (2019). Can the measurement of jaw-opening forces assist in diagnosing temporomandibular-disorders? Journal of Dental Research, 98(A), 0179. Retrieved from https://iadr.abstractarchives.com
Ratnayake, J., Ross, E., Dias, G., Guan, S., & Cathro, P. (2019). Development and characterisation of a novel bone-graft from bovine teeth. Journal of Dental Research, 98(A), 0490. Retrieved from https://iadr.abstractarchives.com
Cathro, P., Ratnayake, J., Dias, G., Ross, E., Shanafelt, K., Taylor, S., & Guan, S. (2019). Biocompatibility and bioactivity of a novel bone graft material developed from the dentine of waste bovine teeth. International Endodontic Journal, 52(Suppl. 1), (pp. 12). doi: 10.1111/iej.13172
Ramesh, N., Ratnayake, J., Moratti, S. C., & Dias, G. J. (2019). Effect of chitosan infiltration on the mechanical properties of a porous xenograft material derived from New Zealand sourced bovine cancellous bone. Proceedings of the European Society for Biomaterials (ESB) 30th Annual Conference and the German Society for Biomaterials (DGBM) 26th Annual Conference. PS2-12-441. Retrieved from https://www.esb2019.org/
2018
Journal - Research Article
Stenhouse, M., Zilm, P., Ratnayake, J., & Cathro, P. (2018). Investigation of the effect of rapid and slow external pH increases on Enterococcus faecalis biofilm grown on dentine. Australian Dental Journal, 63(2), 224-230. doi: 10.1111/adj.12582
Lee, R. J., Ratnayake, J., Veerasamy, A., Loch, C., Cathro, P., & Brunton, P. A. (2018). Demographics, practising arrangements, and standards: Survey among New Zealand dentists. International Journal of Dentistry, 2018, 7675917. doi: 10.1155/2018/7675917
Wang, S., Cathro, P., Heithersay, G., Briggs, N., Ratnayake, J., & Zilm, P. (2018). A colorimetric evaluation of the effect of bacterial contamination on teeth stained with blood in vitro: Evaluation of the efficacy of two different bleaching regimes. Australian Dental Journal, 63(2), 253-260. doi: 10.1111/adj.12604
Plutzer, B., Zilm, P., Ratnayake, J., & Cathro, P. (2018). Comparative efficacy of endodontic medicaments & sodium hypochlorite against Enterococcus faecalis biofilms. Australian Dental Journal, 63(2), 208-216. doi: 10.1111/adj.12580
Conference Contribution - Published proceedings: Abstract
Race, J., Zilm, P., Ratnayake, J., & Cathro, P. (2018). Laser and ultrasonic activated irrigation on eradicating a mixed-species biofilm. Journal of Dental Research, 97(Spec. Iss. B), 1322. Retrieved from http://www.iadr.org
Ahmed, H., Ratnayake, J., Loch, C., Lyons, K., & Brunton, P. (2018). Clinical evaluation of modified-GIC restorations: Six month results. Journal of Dental Research, 97(Spec. Iss. B), 1334. Retrieved from http://www.iadr.org
Ratnayake, J., Gould, M., & Dias, G. (2018). Ionic substituted bovine-derived hydroxyapatite bone grafts for dental surgery applications. New Zealand Dental Journal, 114(4), (pp. 183). [Abstract]
Conference Contribution - Verbal presentation and other Conference outputs
Ratnayake, J. (2018, April). Development of a novel bone graft material from New Zealand sourced bovine bone. Verbal presentation at the University of Otago Centre for Bioengineering & Nanomedicine Symposium: Biomaterials and Regenerative Medicine, Dunedin, New Zealand.
2017
Journal - Research Article
Ratnayake, J. T. B., Mucalo, M., & Dias, G. J. (2017). Substituted hydroxyapatites for bone regeneration: A review of current trends. Journal of Biomedical Materials Research Part B, 105(5), 1285-1299. doi: 10.1002/jbm.b.33651
Ratnayake, J. T. B., Gould, M. L., Shavandi, A., Mucalo, M., & Dias, G. J. (2017). Development and characterization of a xenograft material from New Zealand sourced bovine cancellous bone. Journal of Biomedical Materials Research Part B, 105(5), 1054-1062. doi: 10.1002/jbm.b.33644
Conference Contribution - Published proceedings: Abstract
Ratnayake, J., Mucalo, M., & Dias, G. (2017). Development of a xenograft from bovine cancellous bone. Proceedings of the University of Otago Student Research Symposium: Te Wānaka Rakahau: Ākoka. (pp. 74-75). Retrieved from http://www.otago.ac.nz/graduate-research/scholarships/otago643219.html
2015
Journal - Research Article
Shavandi, A., Bekhit, A. E.-D. A., Ali, A., Sun, Z., & Ratnayake, J. T. (2015). Microwave-assisted synthesis of high purity β-tricalcium phosphate crystalline powder from the waste of Green mussel shells (Perna canaliculus). Powder Technology, 273, 33-39. doi: 10.1016/j.powtec.2014.12.029
