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Contact Details

Phone
64 3 479 7110
Email
warwick.duncan@otago.ac.nz
Position
Professor and Director of the SJWRI
Department
Department of Oral Sciences
Qualifications
ED MDS PhD FRACDS (Perio) FICD MRSNZ
Research summary
Periodontics and Dental Implantology
Teaching

Postgraduate supervision in Periodontics, Dental Implantology, and Forensic Dentistry

Clinical
Periodontics and Dental Implantology

Research

Professor Duncan's primary research activities involve the fields of Periodontology and Dental Implantology. His expertise is in the use of animal models for testing therapeutic strategies in these fields, including clinical, microbiological, histomorphometric, and radiomorphometric analysis of peri-implant, periodontal, and maxillofacial tissues.

Current research strategies are focused on:

  1. The regeneration of bone to support implantable titanium, titanium alloy, and zirconia devices with different modified surfaces
  2. In vivo testing of novel bone grafting materials
  3. New diagnostic and therapeutic strategies for periodontal and peri-implant diseases

He has international collaborations with universities and implant companies in Korea, South Africa, North America, and Switzerland. He is also involved in basic science and epidemiological research in the areas of clinical periodontics, dental implantology, forensics, and comparative anatomy.

Publications

Al Naasan, Z., Broadbent, J. M., Duncan, W. J., & Smith, M. B. (2024). "I lost my first tooth here": Syrian former refugees' experiences of oral healthcare in Dunedin, New Zealand. New Zealand Medical Journal/Te ara tika o te hauora hapori, 137(1591), 41-48. Retrieved from https://www.nzmj.org.nz/

Abdelmoneim, D., Clark, D. E., Schmidlin, P., Botter, S., Li, K. C., Porter, G. C., Seo, B., & Duncan, W. J. (2024). In vivo healing of low temperature deproteinized bovine bone xenograft in a rabbit cranial model. Journal of Biomedical Materials Research Part A. Advance online publication. doi: 10.1002/jbm.a.37693

Safii, S. H., Medlicott, N. J., Milne, T. J., & Duncan, W. J. (2023). Manuka honey as an adjunct to nonsurgical periodontal treatment: A pilot study. Annals of Dentistry, 30, 29-41. doi: 10.22452/adum.vol30no5

Jansen van Vuuren, L., Jansen van Vuuren, W. A., Broadbent, J. M., Duncan, W. J., & Waddell, J. N. (2023). Measurement of tooth displacement. Journal of the Mechanical Behavior of Biomedical Materials, 146, 106059. doi: 10.1016/j.jmbbm.2023.106059

Ram, A., Duncan, W. J., Coates, D. E., Nobakht, S., Tkatchenko, T., & Milne, T. J. (2023). Bone remodelling marker expression in grafted and ungrafted sheep tooth extraction sockets: A comparative randomised study. Archives of Oral Biology, 153, 105738. doi: 10.1016/j.archoralbio.2023.105738

Payne, A. G. T., Tawse-Smith, A., De Silva, R. K., & Duncan, W. J. (2010). Early and conventional loading: Early loading of two implants in the mandible and final restoration with a retentive-anchor-supported RDP. In D. Wismeijer, D. Buser & U. Belser (Eds.), ITI treatment guide: Loading protocols in implant dentistry: Edentulous patients (Vol. 4). (pp. 76-84). Berlin, Germany: Quintessence.

Chapter in Book - Research

Kieser, J. A., Tkatchenko, T., Dean, M. C., Jones, M. E. H., Duncan, W., & Nelson, N. J. (2009). Microstructure of dental hard tissues and bone in the tuatara dentary, Sphenodon punctatus (Diapsida: Lepidosauria: Rhynchocephalia). In T. Koppe, G. Meyer & K. W. Alt (Eds.), Comparative dental morphology: Frontiers of Oral Biology (Vol. 13). (pp. 80-85). Basel, Switzerland: Karger. doi: 10.1159/000242396

Chapter in Book - Research

Payne, A. G. T., Tawse-Smith, A. A., Thomson, W. M., & Duncan, W. J. (2003). Loading strategies for mandibular implant overdentures. In J. S. Feine & G. E. Carlsson (Eds.), Implant overdentures: The standard of care for edentulous patients. (pp. 111-128). Chicago: Quintessence Publishing Co, Inc.

Chapter in Book - Research

Abdelmoneim, D., Clark, D. E., Schmidlin, P., Botter, S., Li, K. C., Porter, G. C., Seo, B., & Duncan, W. J. (2024). In vivo healing of low temperature deproteinized bovine bone xenograft in a rabbit cranial model. Journal of Biomedical Materials Research Part A. Advance online publication. doi: 10.1002/jbm.a.37693

Journal - Research Article

Al Naasan, Z., Broadbent, J. M., Duncan, W. J., & Smith, M. B. (2024). "I lost my first tooth here": Syrian former refugees' experiences of oral healthcare in Dunedin, New Zealand. New Zealand Medical Journal/Te ara tika o te hauora hapori, 137(1591), 41-48. Retrieved from https://www.nzmj.org.nz/

Journal - Research Article

Abdelmoneim, D., Porter, G., Duncan, W., Lim, K., Easingwood, R., Woodfield, T., & Coates, D. (2023). Three-dimensional evaluation of the cytotoxicity and antibacterial properties of alpha lipoic acid-capped silver nanoparticle constructs for oral applications. Nanomaterials, 13, 705. doi: 10.3390/nano13040705

Journal - Research Article

Choi, J. J. E., Chen, J., Choi, Y. J., Moffat, S. M., Duncan, W. J., Waddell, J. N., & Jermy, M. (2023). Dental high-speed handpiece and ultrasonic scaler aerosol generation levels and the effect of suction and air supply. Infection Control & Hospital Epidemiology, 44, 926-933. doi: 10.1017/ice.2022.196

Journal - Research Article

Elahi, A., Duncan, W., Li, K.-C., Waddell, J. N., & Coates, D. (2023). Comparison of low and high temperature sintering for processing of bovine bone as block grafts for oral use: A biological and mechanical in vitro study. Bioengineering, 10, 473. doi: 10.3390/bioengineering10040473

Journal - Research Article

Jansen van Vuuren, L., Jansen van Vuuren, W. A., Broadbent, J. M., Duncan, W. J., & Waddell, J. N. (2023). Measurement of tooth displacement. Journal of the Mechanical Behavior of Biomedical Materials, 146, 106059. doi: 10.1016/j.jmbbm.2023.106059

Journal - Research Article

Jin, K., Roessler, D. M., Duncan, W. J., Waddell, J. N., & Coates, D. E. (2023). Practices of personal protective equipment use among final-year dental students: A cross sectional study. New Zealand Dental Journal, 119(1), 19-25.

Journal - Research Article

Nobakht, S., Milne, T. J., Duncan, W. J., Ram, A., Tkatchenko, T., Dong, Z., & Coates, D. E. (2023). Expression of the pleiotrophin–midkine axis in a sheep tooth socket model of bone healing. Journal of Periodontal Research, 58, 109-121. doi: 10.1111/jre.13073

Journal - Research Article

Ram, A., Duncan, W. J., Coates, D. E., Nobakht, S., Tkatchenko, T., & Milne, T. J. (2023). Bone remodelling marker expression in grafted and ungrafted sheep tooth extraction sockets: A comparative randomised study. Archives of Oral Biology, 153, 105738. doi: 10.1016/j.archoralbio.2023.105738

Journal - Research Article

Safii, S. H., Medlicott, N. J., Milne, T. J., & Duncan, W. J. (2023). Manuka honey as an adjunct to nonsurgical periodontal treatment: A pilot study. Annals of Dentistry, 30, 29-41. doi: 10.22452/adum.vol30no5

Journal - Research Article

Abdelmoneim, D., Porter, G. C., Coates, D. E., Duncan, W. J., Waddell, J. N., Hammer, N., & Li, K. C. (2022). The effect of low-processing temperature on the physicochemical and mechanical properties of bovine hydroxyapatite bone substitutes. Materials, 15, 2798. doi: 10.3390/ma15082798

Journal - Research Article

Al Naasan, Z., Broadbent, J. M., Duncan, W. J., & Smith, M. B. (2022). Perceptions of tailored oral health education resources among former refugees. New Zealand Dental Journal, 118(3), 104-109.

Journal - Research Article

Al Naasan, Z., Broadbent, J., Smith, M., & Duncan, W. (2022). Evaluation of a tailored oral health promotion intervention for Syrian former refugees in New Zealand. Health Promotion International, 37(4). doi: 10.1093/heapro/daac132

Journal - Research Article

Duncan, W. J., & Coates, D. E. (2022). Meeting the challenges and clinical requirements for dental regeneration: The New Zealand experience. Bone, 154, 116181. doi: 10.1016/j.bone.2021.116181

Journal - Research Article

Duncan, W. J., Ma, S., Siddiqi, A., & Osman, R. B. (2022). Zirconia versus titanium implants: 8-year follow-up in a patient cohort contrasted with histological evidence from a preclinical animal model. Materials, 15(15), 5322. doi: 10.3390/ma15155322

Journal - Research Article

Goh, R., Tawse-Smith, A., Atieh, M., Duncan, W., Ma, S., & Li, K. C. (2022). The effect of implantoplasty on dental implant fracture resistance: A systematic review. IIUM Journal of Orofacial & Health Sciences, 3(1), 124-135. doi: 10.31436/ijohs.v3i1.113

Journal - Research Article

Loh, J. Y., Lim, R. Y. M., Broadbent, J. M., & Duncan, W. J. (2022). Employer and graduate perceptions of the competency of University of Otago dental graduates. New Zealand Dental Journal, 118(2), 51-57.

Journal - Research Article

Porter, G. C., Abdelmoneim, D., Li, K. C., Duncan, W. J., & Coates, D. E. (2022). The effect of low-temperature thermal processing on bovine hydroxyapatite bone substitutes, toward bone cell interaction and differentiation. Materials, 15, 2504. doi: 10.3390/ma15072504

Journal - Research Article

Zwirner, J., & Duncan, W. (2022). A disaster victim identification workshop focused on forensic odontology using embalmed human remains. International Journal of Legal Medicine, 136, 1801-1809. doi: 10.1007/s00414-022-02790-5

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

Loch, C., Jansen van Vuuren, L., Duncan, W. J., Boyd, D. H., & Foster Page, L. A. (2021). Ultrastructure and properties of primary carious molars treated using the Hall Technique. International Journal of Paediatric Dentistry, 31(3), 290-298. doi: 10.1111/ipd.12681

Journal - Research Article

Naung, N. Y., Duncan, W. J., De Silva, R. K., & Coates, D. E. (2021). HGF/MET in osteogenic differentiation of primary human palatal periosteum-derived mesenchymal stem cells. Journal of Oral Science, 63(4), 341-346. doi: 10.2334/josnusd.21-0164

Journal - Research Article

Porter, G. C., Duncan, W. J., Abdelmoneim, D., Easingwood, R. A., & Coates, D. E. (2021). Endocytosed silver nanoparticles degrade in lysosomes to form secondary nanoparticle structures during expression of autophagy genes in osteogenic cells. Nanomedicine, 33, 102355. doi: 10.1016/j.nano.2020.102355

Journal - Research Article

Porter, G. C., Safii, S. H., Medlicott, N. J., Duncan, W. J., Tompkins, G. R., & Coates, D. E. (2021). Formulation of a semisolid emulsion containing Leptospermum scoparium essential oil and evaluation of in vitro antimicrobial and antibiofilm efficacy. Planta Medica, 87, 253-266. doi: 10.1055/a-1330-8765

Journal - Research Article

Sharma, A., Waddell, J. N., Li, K. C., Sharma, L. A., Prior, D. J., & Duncan, W. J. (2021). Is titanium–zirconium alloy a better alternative to pure titanium for oral implant? Composition, mechanical properties, and microstructure analysis. Saudi Dental Journal, 33, 546-553. doi: 10.1016/j.sdentj.2020.08.009

Journal - Research Article

Jansen van Vuuren, L., Broadbent, J. M., Duncan, W. J., & Waddell, J. N. (2020). Maximum voluntary bite force, occlusal contact points and associated stresses on posterior teeth. Journal of the Royal Society of New Zealand, 50(1), 132-143. doi: 10.1080/03036758.2019.1691612

Journal - Research Article

Jansen van Vuuren, L., Jansen van Vuuren, W. A., Broadbent, J. M., Duncan, W. J., & Waddell, J. N. (2020). Development of a bite force transducer for measuring maximum voluntary bite forces between individual opposing tooth surfaces. Journal of the Mechanical Behavior of Biomedical Materials, 109, 103846. doi: 10.1016/j.jmbbm.2020.103846

Journal - Research Article

Sheftel, Y., Ruddiman, F., Schmidlin, P., & Duncan, W. (2020). Biphasic calcium phosphate and polymer-coated bovine bone matrix for sinus grafting in an animal model. Journal of Biomedical Materials Research Part B, 108B, 750-759. doi: 10.1002/jbm.b.34429

Journal - Research Article

Atieh, M. A., Pang, J. K., Lian, K., Wong, S., Tawse-Smith, A., Ma, S., & Duncan, W. J. (2019). Predicting peri-implant disease: Chi-squared automatic interaction detection (CHAID) decision tree analysis of risk indicators. Journal of Periodontology, 90, 834-846. doi: 10.1002/jper.17-0501

Journal - Research Article

Cotton, G. C., Gee, C., Jude, A., Duncan, W. J., Abdelmoneim, D., & Coates, D. (2019). Efficacy and safety of alpha lipoic acid-capped silver nanoparticles for oral applications. RSC Advances, 9(12), 6973-6985. doi: 10.1039/c9ra00613c

Journal - Research Article

Ma, S., Tawse-Smith, A., Brown, S. D. K., & Duncan, W. (2019). Immediately restored single implants in the aesthetic zone of the maxilla using a novel design: 5-year results from a prospective single-arm clinical trial. Clinical Implant Dentistry & Related Research, 21, 344-351. doi: 10.1111/cid.12733

Journal - Research Article

Naung, N. Y., Duncan, W., De Silva, R., & Coates, D. (2019). Localization and characterization of human palatal periosteum stem cells in serum-free, xeno-free medium for clinical use. European Journal of Oral Sciences, 127, 99-111. doi: 10.1111/eos.12603

Journal - Research Article

Snoddy, A. M. E., Buckley, H. R., King, C. L., Kinaston, R. L., Nowell, G., Gröcke, D. R., Duncan, W. J., & Petchey, P. (2019). "Captain of All These Men of Death": An integrated case study of tuberculosis in nineteenth-century Otago, New Zealand. Bioarchaeology International, 3(4). doi: 10.5744/bi.2019.1014

Journal - Research Article

Atieh, M. A., Alsabeeha, N. H. M., Tawse-Smith, A., & Duncan, W. J. (2018). Piezoelectric versus conventional implant site preparation: A systematic review and meta-analysis. Clinical Implant Dentistry & Related Research, 20(2), 261-270. doi: 10.1111/cid.12555

Journal - Research Article

Duncan, W. J., Greer, P. F. C., Lee, M.-H., Loch, C., & Gay, J. H. A. (2018). Wool-derived keratin hydrogel enhances implant osseointegration in cancellous bone. Journal of Biomedical Materials Research Part B, 106(6), 2447-2454. doi: 10.1002/jbm.b.34047

Journal - Research Article

Smith, M. M., Duncan, W. J., & Coates, D. E. (2018). Attributes of Bio-Oss® and Moa-Bone® graft materials in a pilot study using the sheep maxillary sinus model. Journal of Periodontal Research, 53(1), 80-90. doi: 10.1111/jre.12490

Journal - Research Article

Zanicotti, D. G., Duncan, W. J., Seymour, G. J., & Coates, D. E. (2018). Effect of titanium surfaces on the osteogenic differentiation of human adipose-derived stem cells. International Journal of Oral & Maxillofacial Implants, 33(3), e77-e87. doi: 10.11607/jomi.5810

Journal - Research Article

Atieh, M. A., Tawse-Smith, A., Alsabeeha, N. H. M., Ma, S., & Duncan, W. J. (2017). The one abutment-one time protocol: A systematic review and meta-analysis. Journal of Periodontology, 88(11), 1173-1185. doi: 10.1902/jop.2017.170238

Journal - Research Article

Godoy Zanicotti, D., Coates, D. E., & Duncan, W. J. (2017). In vivo bone regeneration on titanium devices using serum-free grown adipose-derived stem cells, in a sheep femur model. Clinical Oral Implants Research, 28(1), 64-75. doi: 10.1111/clr.12761

Journal - Research Article

Safii, S. H., Tompkins, G. R., & Duncan, W. J. (2017). Periodontal application of Manuka honey: Antimicrobial and demineralising effects In Vitro. International Journal of Dentistry, 2017, 9874535. doi: 10.1155/2017/9874535

Journal - Research Article

Tawse-Smith, A., Ma, S., Duncan, W. J., Gray, A., Reid, M. R., & Rich, A. M. (2017). Implications of wear at the titanium-zirconia implant-abutment interface on the health of peri-implant tissues. International Journal of Oral & Maxillofacial Implants, 32(3), 599-609. doi: 10.11607/jomi.5014

Journal - Research Article

Atieh, M. A., Duncan, W. J., & Faggion, C. M. (2016). Quality assessment of systematic reviews on oral implants placed immediately into fresh extraction sockets. International Journal of Oral & Maxillofacial Implants, 31(2), 338-351. doi: 10.11607/jomi.4109

Journal - Research Article

Atieh, M. A., Morgaine, K. C., & Duncan, W. J. (2016). A qualitative analysis on participants' perspectives on oral implants. Clinical Oral Implants Research, 27(3), 383-391. doi: 10.1111/clr.12558

Journal - Research Article

Broadbent, J. M., Singh, J. K., Masri, N. S., Tong, D. C., & Duncan, W. J. (2016). Oral health of New Zealand service personnel in WW1. New Zealand Dental Journal, 112(1), 10-14.

Journal - Research Article

Duncan, W. J., Gay, J. H. A., Lee, M.-H., Bae, T.-S., Lee, S.-J., & Loch, C. (2016). The effect of hydrothermal spark discharge anodization in the early integration of implants in sheep sinuses. Clinical Oral Implants Research, 27(8), 975-980. doi: 10.1111/clr.12741

Journal - Research Article

Liu, J., Schmidlin, P. R., Philipp, A., Hild, N., Tawse-Smith, A., & Duncan, W. (2016). Novel bone substitute material in alveolar bone healing following tooth extraction: An experimental study in sheep. Clinical Oral Implants Research, 27(7), 762-772. doi: 10.1111/clr.12673

Journal - Research Article

Ohlrich, E. J., Coates, D. E., Cullinan, M. P., Milne, T. J., Zafar, S., Zhao, Y., Duncan, W. J., & Seymour, G. J. (2016). The bisphosphonate zoledronic acid regulates key angiogenesis-related genes in primary human gingival fibroblasts. Archives of Oral Biology, 63, 7-14. doi: 10.1016/j.archoralbio.2015.11.013

Journal - Research Article

Parton, A. L., Duncan, W. J., Oliveira, M. E., Key, O., & Farella, M. (2016). Implant-based three-dimensional superimposition of the growing mandible in a rabbit model. European Journal of Orthodontics, 38(5), 546-552. doi: 10.1093/ejo/cjv085

Journal - Research Article

Sharma, A., McQuillan, A. J., Shibata, Y., Sharma, L. A., Waddell, J. N., & Duncan, W. J. (2016). Histomorphometric and histologic evaluation of titanium-zirconium (aTiZr) implants with anodized surfaces. Journal of Materials Science: Materials in Medicine, 27(5), 86. doi: 10.1007/s10856-016-5695-4

Journal - Research Article

Siddiqi, A., Duncan, W. J., De Silva, R. K., & Zafar, S. (2016). One-piece zirconia ceramic versus titanium implants in the jaw and femur of a sheep model: A pilot study. BioMed Research International, 2016, 6792972. doi: 10.1155/2016/6792972

Journal - Research Article

Tawse-Smith, A., Atieh, M. A., Tompkins, G., Duncan, W. J., Reid, M. R., & Stirling, C. H. (2016). The effect of piezoelectric ultrasonic instrumentation on titanium discs: A microscopy and trace elemental analysis in vitro study. International Journal of Dental Hygiene, 14(3), 191-201. doi: 10.1111/idh.12142

Journal - Research Article

Atieh, M. A., Alsabeeha, N. H. M., Payne, A. G. T., Duncan, W., Faggion, C. M., & Esposito, M. (2015). Interventions for replacing missing teeth: Alveolar ridge preservation techniques for dental implant site development (Review). Cochrane Database of Systematic Reviews, 5, CD010176. doi: 10.1002/14651858.CD010176.pub2

Journal - Research Article

Atieh, M. A., Alsabeeha, N. H. M., Tawse-Smith, A., Faggion, C. M., & Duncan, W. J. (2015). Piezoelectric surgery vs rotary instruments for lateral maxillary sinus floor elevation: A systematic review and meta-Analysis of intra- and postoperative complications. International Journal of Oral & Maxillofacial Implants, 30(6), 1262-1271. doi: 10.11607/jomi.3895

Journal - Research Article

Baharuddin, N. A., Coates, D. E., Cullinan, M., Seymour, G., & Duncan, W. (2015). Localization of RANK, RANKL and osteoprotegerin during healing of surgically created periodontal defects in sheep. Journal of Periodontal Research, 50(2), 211-219. doi: 10.1111/jre.12196

Journal - Research Article

de Castro, T. C., Taylor, M. C., Kieser, J. A., Carr, D. J., & Duncan, W. (2015). Systematic investigation of drip stains on apparel fabrics: The effects of prior-laundering, fibre content and fabric structure on final stain appearance. Forensic Science International, 250, 98-109. doi: 10.1016/j.forsciint.2015.03.004

Journal - Research Article

Duncan, W. J., Lee, M.-H., Bae, T.-S., Lee, S.-J., Gay, J., & Loch, C. (2015). Anodisation increases integration of unloaded titanium implants in sheep mandible. BioMed Research International, 2015, 85969. doi: 10.1155/2015/857969

Journal - Research Article

Lindström, A.-C., Hoogewerff, J., Athens, J., Obertova, Z., Duncan, W., Waddell, N., & Kieser, J. (2015). Gunshot residue preservation in seawater. Forensic Science International, 253, 103-111. doi: 10.1016/j.forsciint.2015.05.021

Journal - Research Article

Sharma, A., McQuillan, A. J., Sharma, L. A., Waddell, J. N., Shibata, Y., & Duncan, W. J. (2015). Spark anodization of titanium-zirconium alloy: Surface characterization and bioactivity assessment. Journal of Materials Science: Materials in Medicine, 26(8), 221. doi: 10.1007/s10856-015-5555-7

Journal - Research Article

Siddiqi, A., Kieser, J. A., De Silva, R. K., Thomson, W. M., & Duncan, W. J. (2015). Soft and hard tissue response to zirconia versus titanium one-piece implants placed in alveolar and palatal sites: A randomized control trial. Clinical Implant Dentistry & Related Research, 17(3), 483-496. doi: 10.1111/cid.12159

Journal - Research Article

Tiu, J., Al-Amleh, B., Waddell, J. N., & Duncan, W. J. (2015). Clinical tooth preparations and associated measuring methods: A systematic review. Journal of Prosthetic Dentistry, 113(3), 175-184. doi: 10.1016/j.prosdent.2014.09.007

Journal - Research Article

Tiu, J., Al-Amleh, B., Waddell, J. N., & Duncan, W. J. (2015). Reporting numeric values of complete crowns: Part 2: Retention and resistance theories. Journal of Prosthetic Dentistry, 114, 75-80. doi: 10.1016/j.prosdent.2015.01.007

Journal - Research Article

Tiu, J., Al-Amleh, B., Waddell, J. N., & Duncan, W. J. (2015). Reporting numeric values of complete crowns: Part 1: Clinical preparation parameters. Journal of Prosthetic Dentistry, 114(1), 67-74. doi: 10.1016/j.prosdent.2015.01.006

Journal - Research Article

Atieh, M. A., Alsabeeha, N. H. M., Payne, A. G. T., de Silva, R. K., Schwass, D. R., & Duncan, W. J. (2014). The prognostic accuracy of resonance frequency analysis in predicting failure risk of immediately restored implants. Clinical Oral Implants Research, 25(1), 29-35. doi: 10.1111/clr.12057

Journal - Research Article

Campbell, D. I., & Duncan, W. J. (2014). The effect of a keratin hydrogel coating on osseointegration: An histological comparison of coated and non-coated dental titanium implants in an ovine model. Journal of Maxillofacial & Oral Surgery, 13(2), 159-164. doi: 10.1007/s12663-013-0482-y

Journal - Research Article

Osman, R. B., Morgaine, K. C., Duncan, W., Swain, M. V., & Ma, S. (2014). Patients’ perspectives on zirconia and titanium implants with a novel distribution supporting maxillary and mandibular overdentures: A qualitative study. Clinical Oral Implants Research, 25(5), 587-597. doi: 10.1111/clr.12106

Journal - Research Article

Osman, R. B., Swain, M. V., Atieh, M., Ma, S., & Duncan, W. (2014). Ceramic implants (Y-TZP): Are they a viable alternative to titanium implants for the support of overdentures? A randomized clinical trial. Clinical Oral Implants Research, 25(12), 1366-1377. doi: 10.1111/clr.12272

Journal - Research Article

Philipp, A., Duncan, W., Roos, M., Hämmerle, C. H., Attin, T., & Schmidlin, P. R. (2014). Comparison of SLA® or SLActive® implants placed in the maxillary sinus with or without synthetic bone graft materials: An animal study in sheep. Clinical Oral Implants Research, 25(10), 1142-1148. doi: 10.1111/clr.12255

Journal - Research Article

Siddiqi, A., Kieser, J. A., De Silva, R. K., McNaughton, A., & Duncan, W. J. (2014). Could the median-palate accommodate wide-bodied implants in order to support maxillary over-dentures? A radiomorphometric study of human cadavers. Clinical Oral Implants Research, 25(1), 101-109. doi: 10.1111/clr.12050

Journal - Research Article

Tawse-Smith, A., Khosa, A., Kamel, M. S., Duncan, W. J., Swain, M., & Tompkins, G. (2014). Bacterial colonization of titanium discs: A pilot study for evaluating implant surface deterioration. Brazilian Journal of Periodontology, 24(1), 14-23.

Journal - Research Article

Atieh, M. A., Alsabeeha, N. H. M., Duncan, W. J., de Silva, R. K., Cullinan, M. P., Schwass, D., & Payne, A. G. T. (2013). Immediate single implant restorations in mandibular molar extraction sockets: A controlled clinical trial. Clinical Oral Implants Research, 24(5), 484-496. doi: 10.1111/j.1600-0501.2011.02415.x

Journal - Research Article

Atieh, M. A., Alsabeeha, N. H. M., Faggion, Jr, C. M., & Duncan, W. J. (2013). The frequency of peri-implant diseases: A systematic review and meta-analysis. Journal of Periodontology, 84(11), 1586-1598. doi: 10.1902/jop.2012.120592

Journal - Research Article

Loch, C., Duncan, W., Simões-Lopes, P. C., Kieser, J. A., & Fordyce, R. E. (2013). Ultrastructure of enamel and dentine in extant dolphins (Cetacea: Delphinoidea and Inioidea). Zoomorphology, 132(2), 215-225. doi: 10.1007/s00435-012-0180-1

Journal - Research Article

Osman, R. B., Payne, A. G. T., Duncan, W., & Ma, S. (2013). Zirconia implants supporting overdentures: A pilot study with novel prosthodontic designs. International Journal of Prosthodontics, 26(3), 277-281. doi: 10.11607/ijp.2903

Journal - Research Article

Siddiqi, A., Kieser, J. A., De Silva, R. K., McNaughton, A., Zafar, S., & Duncan, W. J. (2013). Trabecular bone microarchitecture in the median palate and maxillary premolar alveolar sites of edentulous elderly cadavers. Journal of Oral & Maxillofacial Surgery, 71(11), 1852.e1-1852.e11. doi: 10.1016/j.joms.2013.07.019

Journal - Research Article

Ting, N. A., Broadbent, J. M., & Duncan, W. J. (2013). Dental radiography in New Zealand: Digital versus film. New Zealand Dental Journal, 109(3), 107-114.

Journal - Research Article

Atieh, M. A., Alsabeeha, N. H. M., Payne, A. G. T., Schwass, D. R., & Duncan, W. J. (2012). Insertion torque of immediate wide-diameter implants: A finite element analysis. Quintessence International, 43(9), e115-e126.

Journal - Research Article

Kim, I., Duncan, W. J., & Farella, M. (2012). Evaluation of mandibular growth using cone-beam computed tomography in a rabbit model: A pilot study. New Zealand Dental Journal, 108(1), 9-12.

Journal - Research Article

Bai, Y., Park, I. S., Lee, S. J., Bae, T. S., Duncan, W., Swain, M., & Lee, M. H. (2011). One-step approach for hydroxyapatite-incorporated TiO2 coating on titanium via a combined technique of micro-arc oxidation and electrophoretic deposition. Applied Surface Science, 257(15), 7010-7018. doi: 10.1016/j.apsusc.2011.03.058

Journal - Research Article

Bai, Y., Park, I. S., Park, H. H., Lee, M. H., Bae, T. S., Duncan, W., & Swain, M. (2011). The effect of annealing temperatures on surface properties, hydroxyapatite growth and cell behaviors of TiO2 nanotubes. Surface & Interface Analysis, 43(6), 998-1005. doi: 10.1002/sia.3683

Journal - Research Article

Kieser, J. A., He, L. H., Dean, M. C., Jones, M. E., Duncan, W. J., Swain, M. V., & Nelson, N. J. (2011). Structure and compositional characteristics of caniniform dental enamel in the tuatara Sphenodon punctatus (Lepidosauria: Rhynchocephalia). New Zealand Dental Journal, 107(2), 44-50.

Journal - Research Article

Kieser, J. A., Tahere, J., Agnew, C., Kieser, D. C., Duncan, W., Swain, M. V., & Reeves, M. T. (2011). Morphoscopic analysis of experimentally produced bony wounds from low-velocity ballistic impact. Forensic Science, Medicine & Pathology, 7(4), 322-332. doi: 10.1007/s12024-011-9240-y

Journal - Research Article

Siddiqi, A., Payne, A. G. T., De Silva, R. K., & Duncan, W. J. (2011). Titanium allergy: Could it affect dental implant integration? Clinical Oral Implants Research, 22(7), 673-680. doi: 10.1111/j.1600-0501.2010.02081.x

Journal - Research Article

Atieh, M. A., Payne, A. G. T., Duncan, W. J., de Silva, R. K., & Cullinan, M. P. (2010). Immediate placement or immediate restoration/loading of single implants for molar tooth replacement: A systematic review and meta-analysis. International Journal of Oral & Maxillofacial Implants, 25, 401-415.

Journal - Research Article

Park, C., Swain, M., & Duncan, W. (2010). Micro-computerised tomography optimisation for the measurement of bone mineral density around titanium dental implants. Journal of Biomechanical Science & Engineering, 5(1), 2-10. doi: 10.1299/jbse.5.2

Journal - Research Article

Atieh, M. A. H., Payne, A. G. T., & Duncan, W. J. (2009). Immediate loading with single implant crowns: A systematic review and meta-analysis. International Journal of Prosthodontics, 22(4), 378-387.

Journal - Research Article

Atieh, M. A., Payne, A. G. T., Duncan, W. J., & Cullinan, M. P. (2009). Immediate restoration/loading of immediately placed single implants: Is it an effective bimodal approach? Clinical Oral Implants Research, 20(7), 645-659. doi: 10.1111/j.1600-0501.2009.01725.x

Journal - Research Article

Hall, J. A. G., Payne, A. G. T., Purton, D. G., Torr, B., Duncan, W. J., & De Silva, R. K. (2007). Immediately restored, single-tapered implants in the anterior maxilla: Prosthodontic and aesthetic outcomes after 1 year. Clinical Implant Dentistry & Related Research, 9(1), 34-45. doi: 10.1111/j.1708-8208.2007.00029.x

Journal - Research Article

Payne, A. G. T., Tawse-Smith, A., Thomson, W. M., Duncan, W., & Kumara, R. (2004). One-stage surgery and early loading of three implants for maxillary overdentures: A 1-year report. Clinical Implant Dentistry & Related Research, 6(2), 61-74.

Journal - Research Article

Duncan, W. J., Persson, G. R., Sims, T., Braham, P., Pack, A. R. C., & Page, R. C. (2003). Ovine periodontitis as a potential model for periodontal studies. Journal of Clinical Periodontology, 30, 63-72.

Journal - Research Article

Feine, J. S., Carlsson, G. E., Awad, M. A., Chehade, A., Duncan, W. J., Gizani, S., & ... (2002). Editorial. Journal of Prosthetic Dentistry, 88(2), 123-124.

Journal - Research Article

Feine, J. S., Carlsson, G. E., Awad, M. A., Chehade, A., Duncan, W. J., Gizani, S., … Payne, A. G. T., … Tawse-Smith, A. A., … Thomson, W. M., & Wismeijer, D. (2002). The McGill consensus statement on overdentures. Mandibular two-implant overdentures as first-choice standard of care for edentulous patients. International Journal of Oral & Maxillofacial Implants, 17(4), 601-602.

Journal - Research Article

Payne, A. G. T., Tawse-Smith, A. A., Duncan, W. J., & Kumara, R. (2002). Conventional and early loading of unsplinted ITI implants supporting mandibular overdentures. Clinical Oral Implants Research, 13, 603-609.

Journal - Research Article

Tawse-Smith, A. A., Duncan, W. J., Payne, A. G. T., Thomson, W. M., Wennstroem, J. L., & Wennstroem, J. L. (2002). Relative effectiveness of powered and manual toothbrushes in elderly patients with implant-supported mandibular overdentures. Journal of Clinical Periodontology, 29, 275-280.

Journal - Research Article

Duncan, W. J. (1997). Realignment of periodontically-affected maxillary teeth: A periodontist's perspective. Part 2. New Zealand Dental Journal, 94, 80-85.

Journal - Research Article

Duncan, W. J. (1997). Realignment of periodontically-affected maxillary teeth: A periodontist's perspective. Part 1. New Zealand Dental Journal, 93, 79-83.

Journal - Research Article

Marshall, J. M., & Duncan, W. J. (1997). Critical size in the sheep mandible. Part II: Healing of 12 mm circular defects after 16 weeks. Journal of the New Zealand Society of Periodontology, 82, 5-8.

Journal - Research Article

Salmon, R., & Duncan, W. J. (1997). Determination of the critical size for non-healing defects in the mandibular bone of sheep. Journal of the New Zealand Society of Periodontology, 81, 6-15.

Journal - Research Article

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