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Health Sciences staff profiles

Dr Joanne Choi

PositionSenior Lecturer
DepartmentDepartment of Oral Rehabilitation
QualificationsBDentTech (Hon) PGDipCDTech PhD
Research summaryDental materials, dental technology, biomaterials, biomechanics, and craniofacial biology
Teaching

My main teaching responsibility is to teach into Bachelor of Dental Technology and Postgraduate Diploma in Clinical Dental technology. I also give biomaterials, oral physiology, clinical lectures into Dental Surgery and Oral Health programme at both undergraduate and postgraduate level.

I supervise research students at undergraduate and postgraduate level.

Research

I carry out a qualitative and quantitative analysis of the mechanical properties and failure mechanisms of various restorative dental materials (various dental resins, metals and ceramics; CAD-CAM and 3D printed dental materials).

I also conduct research into developing new dental restorative materials to improve oral care and real-time measuring systems to evaluate physiologic changes (e.g. intraoral pH and temperature, temperature changes in restorative materials) or biomechanics of the materials in the oral cavity (e.g. pressure from dentures and other oral appliances). For my PhD, I developed and validated a wired sensor system to monitor intraoral pH and temperature for long-term periods, the results of which can be used in identifying and evaluating causal factors involved with dental wear.

I am part of the Biomechanics and Oral Implantology and Craniofacial Biology Programmes of the Sir John Walsh Research Institute.

Publications

Li, G. H., Chen, S., Grymak, A., Waddell, J. N., Kim, J. J., & Choi, J. J. E. (2021). Fibre-reinforced and repaired PMMA denture base resin: Effect of placement on the flexural strength and load-bearing capacity. Journal of the Mechanical Behavior of Biomedical Materials, 124, 104828. doi: 10.1016/j.jmbbm.2021.104828

Li, E. G., Waddell, J. N., & Choi, J. J. E. (2021). Wear resistance of bulk-fill dental resins cured by different light-curing settings. Biotribology, 28, 100197. doi: 10.1016/j.biotri.2021.100197

Choi, J. J. E., Plaksina, P., Foster Page, L., Waddell, J. N., & Duncan, W. J. (2021). A novel tooth-colored crown system to treat dental caries in children: Development and validation. New Zealand Dental Journal, 117(2), 55-65.

Paras, A., Ma, S., Waddell, J. N., & Choi, J. J. E. (2021). Real-time in vitro measurement of denture-mucosa pressure distribution in a typical edentulous patient with and without implants: Development of a methodology. Journal of the Mechanical Behavior of Biomedical Materials. Advance online publication. doi: 10.1016/j.jmbbm.2021.104531

Choi, J. J. E., Chen, S., & Waddell, J. N. (2021). Investigation of dental elastomers as oral mucosa simulant materials. Clinical & Experimental Dental Research. Advance online publication. doi: 10.1002/cre2.399

Choi, J. J. E., Chen, S., & Waddell, J. N. (2021). Investigation of dental elastomers as oral mucosa simulant materials. Clinical & Experimental Dental Research. Advance online publication. doi: 10.1002/cre2.399

Journal - Research Article

Choi, J. J. E., Plaksina, P., Foster Page, L., Waddell, J. N., & Duncan, W. J. (2021). A novel tooth-colored crown system to treat dental caries in children: Development and validation. New Zealand Dental Journal, 117(2), 55-65.

Journal - Research Article

Grymak, A., Aarts, J. M., Ma, S., Waddell, J. N., & Choi, J. J. E. (2021). Comparison of hardness and polishability of various occlusal splint materials. Journal of the Mechanical Behavior of Biomedical Materials, 115, 104270. doi: 10.1016/j.jmbbm.2020.104270

Journal - Research Article

Li, E. G., Waddell, J. N., & Choi, J. J. E. (2021). Wear resistance of bulk-fill dental resins cured by different light-curing settings. Biotribology, 28, 100197. doi: 10.1016/j.biotri.2021.100197

Journal - Research Article

Li, G. H., Chen, S., Grymak, A., Waddell, J. N., Kim, J. J., & Choi, J. J. E. (2021). Fibre-reinforced and repaired PMMA denture base resin: Effect of placement on the flexural strength and load-bearing capacity. Journal of the Mechanical Behavior of Biomedical Materials, 124, 104828. doi: 10.1016/j.jmbbm.2021.104828

Journal - Research Article

Paras, A., Ma, S., Waddell, J. N., & Choi, J. J. E. (2021). Real-time in vitro measurement of denture-mucosa pressure distribution in a typical edentulous patient with and without implants: Development of a methodology. Journal of the Mechanical Behavior of Biomedical Materials. Advance online publication. doi: 10.1016/j.jmbbm.2021.104531

Journal - Research Article

Aarts, J. M., Choi, J. J. E., Metcalfe, S., & Bennani, V. (2020). Influence of build angulation on the mechanical properties of a direct-metal laser-sintered cobalt-chromium used for removable partial denture frameworks. Journal of Prosthetic Dentistry. Advance online publication. doi: 10.1016/j.prosdent.2020.06.014

Journal - Research Article

Choi, J. J. E., Ramani, R. S., Ganjigatti, R., Uy, C. E., Plaksina, P., & Waddell, J. N. (2020). Adhesion of denture characterizing composites to heat-cured, CAD/CAM and 3D printed denture base resins. Journal of Prosthodontics. Advance online publication. doi: 10.1111/jopr.13291

Journal - Research Article

Choi, J. J. E., Uy, C. E., Plaksina, P., Ramani, R. S., Ganjigatti, R., & Waddell, J. N. (2020). Bond strength of denture teeth to heat-cured, CAD/CAM and 3D printed denture acrylics. Journal of Prosthodontics, 29, 415-421. doi: 10.1111/jopr.13125

Journal - Research Article

Choi, J. J. E., Uy, C. E., Ramani, R. S., & Waddell, J. N. (2020). Evaluation of surface roughness, hardness and elastic modulus of nanoparticle containing light-polymerized denture glaze materials. Journal of the Mechanical Behavior of Biomedical Materials, 103, 103601. doi: 10.1016/j.jmbbm.2019.103601

Journal - Research Article

Choi, J. J. E., Zwirner, J., Ramani, R. S., Ma, S., Hussaini, H. M., Waddell, J. N., & Hammer, N. (2020). Mechanical properties of human oral mucosa tissues are site dependent: A combined biomechanical, histological and ultrastructural approach. Clinical & Experimental Dental Research, 6, 602-611. doi: 10.1002/cre2.305

Journal - Research Article

Tykhonova, L. Y., Dias, M., Zhou, L. D., Richardson, C., Waddell, J. N., & Choi, J. J. E. (2020). The eficacy of a novel temporary crown system marginal seal and structural durability in terms of cyclic loading: A pilot study. Dental Oral Biology & Craniofacial Research. Advance online publication. doi: 10.31487/j.DOBCR.2020.01.01

Journal - Research Article

Chua, H., Choi, J. J. E., Ramani, R. S., Ganjigatti, R., & Waddell, J. N. (2019). The cooling efficiency of different dental high-speed handpiece coolant port designs. Heliyon, 5, e02185. doi: 10.1016/j.heliyon.2019.e02185

Journal - Research Article

Dias, M., Choi, J. J. E., Uy, C. E., Ramani, R. S., Ganjigatti, R., & Waddell, J. N. (2019). Real-time pulp temperature change at different tooth sites during fabrication of temporary resin crowns. Heliyon, 5(12), e02971. doi: 10.1016/j.heliyon.2019.e02971

Journal - Research Article

Choi, J. E., Ng, T. E., Leong, C. K. Y., Kim, H., Li, P., & Waddell, J. N. (2018). Adhesive evaluation of three types of resilient denture liners bonded to heat-polymerized, autopolymerized, or CAD-CAM acrylic resin denture bases. Journal of Prosthetic Dentistry, 120(5), 699-705. doi: 10.1016/j.prosdent.2018.01.032

Journal - Research Article

Aarts, J. M., Jansen van Vuuren, W.-A., Withy, K. E., Choi, J. E., & Waddell, N. J. (2017). A pilot study on the influence of two reinforcing materials (glass fibre mesh and electro-spun nylon nano fibres) on the flexural strength of a heat-cured poly (methyl methacrylate) denture base resin. New Zealand Dental Journal, 113(3), 11-15.

Journal - Research Article

Choi, J. E., Lyons, K. M., Kieser, J. A., & Waddell, N. J. (2017). Diurnal variation of intraoral pH and temperature. BDJ Open, 3, 17015. doi: 10.1038/bdjopen.2017.15

Journal - Research Article

Choi, J. E., Lyons, K. M., McLean, M. C. B., & Waddell, J. N. (2016). Interarch comparison of intraoral pH and temperature: A pilot study. BDJ Open, 2, 16008. doi: 10.1038/bdjopen.2016.8

Journal - Research Article

Choi, J. E., Waddell, J. N., Lyons, K. M., & Kieser, J. A. (2016). Intraoral pH and temperature during sleep with and without mouth breathing. Journal of Oral Rehabilitation, 43(5), 356-363. doi: 10.1111/joor.12372

Journal - Research Article

Choi, J. E., Loke, C., Waddell, J. N., Lyons, K. M., Kieser, J. A., & Farella, M. (2015). Continuous measurement of intra-oral pH and temperature: Development, validation of an appliance and a pilot study. Journal of Oral Rehabilitation, 42(8), 563-570. doi: 10.1111/joor.12294

Journal - Research Article

Choi, J. E., Waddell, J. N., & Swain, M. V. (2011). Pressed ceramics onto zirconia: Part 2: Indentation fracture and influence of cooling rate on residual stresses. Dental Materials, 27(11), 1111-1118. doi: 10.1016/j.dental.2011.08.003

Journal - Research Article

Choi, J. E., Waddell, J. N., Torr, B., & Swain, M. V. (2011). Pressed ceramics onto zirconia. Part 1: Comparison of crystalline phases present, adhesion to a zirconia system and flexural strength. Dental Materials, 27(12), 1204-1212. doi: 10.1016/j.dental.2011.08.006

Journal - Research Article

Ramani, R. S., Bennani, V., Aarts, J. M., Choi, J. J. E., & Brunton, P. A. (2020). Patient satisfaction with esthetics, phonetics, and function following implant-supported fixed restorative treatment in the esthetic zone: A systematic review. Journal of Esthetic & Restorative Dentistry. Advance online publication. doi: 10.1111/jerd.12625

Journal - Research Other

Brooks, T., Choi, J. E., Garnich, M., Hammer, N., Waddell, J. N., Duncan, W., & Jermy, M. (2018). Finite element models and material data for analysis of infant head impacts. Heliyon, 4(12), e01010. doi: 10.1016/j.heliyon.2018.e01010

Journal - Research Other

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