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Sir John Walsh Research Institute researcher profile

Associate Professor Jonathan Leichter

PositionAssociate Professor
DepartmentDepartment of Oral Sciences
QualificationsBA DMD CertPeriodontology
Research summaryPeriodontology and laser applications in dentistry

Research

Dr Leichter's prime areas of research are periodontology, dental implants, dental trauma and laser applications in dentistry. His multi-disciplinary research has resulted in publications in high ranking international peer reviewed journals in periodontology, endodontics, cariology and dental materials. His clinical research into lasers in periodontology has established that Er:YAG lasers are the only monotherapy for the treatment of periodontitis that is equivalent to the 'gold standard' of scaling and root planing. Work with dental lasers is opening up novel treatment strategies for the treatment of peri-implantitis as well. The scope and quality of Dr Leichter's research has been recognized in the way of being invited to act as a reviewer and editor for peer reviewed dental journals and in invitations to present his research in New Zealand, Australia, Japan and in the US.

Publications

Morelli, E. L., Broadbent, J. M., Knight, E. T., Leichter, J. W., & Thomson, W. M. (2021). Does having children affect women's oral health? A longitudinal study. Journal of Public Health Dentistry. Advance online publication. doi: 10.1111/jphd.12466

Horne, P. E., Foster Page, L. A., Leichter, J. W., Knight, E. T., & Thomson, W. M. (2020). Psychosocial aspects of periodontal disease diagnosis and treatment: A qualitative study. Journal of Clinical Periodontology, 47, 941-951. doi: 10.1111/jcpe.13309

Morelli, E. L., Broadbent, J. M., Leichter, J. W., & Thomson, W. M. (2018). Pregnancy, parity and periodontal disease. Australian Dental Journal, 63(3), 270-278. doi: 10.1111/adj.12623

Horne, P. E., & Leichter, J. W. (2017). Multidisciplinary consideration for the management of palatogingival grooves on incisor teeth: A literature review. New Zealand Dental Journal, 113(3), 23-28. [Review].

Quaranta, A., Lim, Z. W., Tang, J., Perrotti, V., & Leichter, J. (2017). The impact of residual subgingival cement on biological complications around dental implants: A systematic review. Implant Dentistry, 26(3), 465-474. doi: 10.1097/id.0000000000000593

Morelli, E. L., Broadbent, J. M., Knight, E. T., Leichter, J. W., & Thomson, W. M. (2021). Does having children affect women's oral health? A longitudinal study. Journal of Public Health Dentistry. Advance online publication. doi: 10.1111/jphd.12466

Journal - Research Article

Horne, P. E., Foster Page, L. A., Leichter, J. W., Knight, E. T., & Thomson, W. M. (2020). Psychosocial aspects of periodontal disease diagnosis and treatment: A qualitative study. Journal of Clinical Periodontology, 47, 941-951. doi: 10.1111/jcpe.13309

Journal - Research Article

Drummond, B. K., Brosnan, M. G., & Leichter, J. W. (2017). Management of periodontal health in children: Pediatric dentistry and periodontology interface. Periodontology 2000, 74, 158-167. doi: 10.1111/prd.12195

Journal - Research Article

Quaranta, A., Lim, Z. W., Tang, J., Perrotti, V., & Leichter, J. (2017). The impact of residual subgingival cement on biological complications around dental implants: A systematic review. Implant Dentistry, 26(3), 465-474. doi: 10.1097/id.0000000000000593

Journal - Research Article

Smith, M. M., Knight, E. T., Al-Harthi, L., & Leichter, J. W. (2017). Chronic periodontitis and implant dentistry. Periodontology 2000, 74(1), 63-73. doi: 10.1111/prd.12190

Journal - Research Article

Atieh, M. A., & Leichter, J. (2016). The Octagon Model: A clinical tool for assessing marginal tissue recession. International Journal of Esthetic Dentistry, 11(1), 98-109.

Journal - Research Article

Kennedy, R., Murray, C., & Leichter, J. (2016). Dental implant treatment following trauma: An investigation into the failure to complete Accident Compensation Corporation funded care. New Zealand Dental Journal, 112(1), 5-9.

Journal - Research Article

Milne, T. J., Coates, D. E., Leichter, J. W., Soo, L., Williams, S. M., Seymour, G. J., & Cullinan, M. P. (2016). Periodontopathogen levels following the use of an Er:YAG laser in the treatment of chronic periodontitis. Australian Dental Journal, 61, 35-44. doi: 10.1111/adj.12306

Journal - Research Article

Murray, C. M., Thomson, W. M., & Leichter, J. W. (2016). Dental implant use in New Zealand: A 10-year update. New Zealand Dental Journal, 112(2), 49-54.

Journal - Research Article

Knight, E. T., Leichter, J. W., Tawse-Smith, A., & Thomson, W. M. (2015). Quantifying the association between self-reported diabetes and periodontitis in the New Zealand population. Journal of Periodontology, 86(8), 945-954. doi: 10.1902/jop.2015.150048

Journal - Research Article

Al-Harthi, L. S., Cullinan, M. P., Leichter, J. W., & Thomson, W. M. (2014). Periodontal diseases in an Omani adult population: A preliminary study. Journal of Periodontology, 85(5), e104-e110. doi: 10.1902/jop.2013.130266

Journal - Research Article

Kamel, M. S., Khosa, A., Tawse-Smith, A., & Leichter, J. (2014). The use of laser therapy for dental implant surface decontamination: A narrative review of in vitro studies. Lasers in Medical Science, 29(6), 1977-1985. doi: 10.1007/s10103-013-1396-0

Journal - Research Article

Russell, A. A., Tawse-Smith, A., Broadbent, J. M., & Leichter, J. W. (2014). Peri-implantitis diagnosis and treatment by New Zealand periodontists and oral maxillofacial surgeons. New Zealand Dental Journal, 110(1), 6-10.

Journal - Research Article

Al-Harthi, L. S., Cullinan, M. P., Leichter, J. W., & Thomson, W. M. (2013). Periodontitis among adult populations in the Arab World. International Dental Journal, 63(1), 7-11. doi: 10.1111/idj.12002

Journal - Research Article

Al-Harthi, L. S., Cullinan, M. P., Leichter, J. W., & Thomson, W. M. (2013). The impact of periodontitis on oral health-related quality of life: A review of the evidence from observational studies. Australian Dental Journal, 58(3), 274-277. doi: 10.1111/adj.12076

Journal - Research Article

Murray, C. M., Knight, E. T., Russell, A. A., Tawse-Smith, A., & Leichter, J. W. (2013). Peri-implant disease: Current understanding and future direction. New Zealand Dental Journal, 109(2), 55-62.

Journal - Research Article

Schwass, D. R., Leichter, J. W., Purton, D. G., & Swain, M. V. (2013). Evaluating the efficiency of caries removal using an Er:YAG laser driven by fluorescence feedback control. Archives of Oral Biology, 58(6), 603-610. doi: 10.1016/j.archoralbio.2012.09.017

Journal - Research Article

Aziz, A., Chandler, N. P., Hauman, C. H. J., Leichter, J. W., McNaughton, A., & Tompkins, G. R. (2012). Infection of apical dentin and root-end cavity disinfection. Journal of Endodontics, 38(10), 1387-1390. doi: 10.1016/j.joen.2012.06.034

Journal - Research Article

Peters, N., Tawse Smith, A., Leichter, J., & Tompkins, G. (2012). Laser therapy: The future of peri-implantitis management. Brazilian Journal of Periodontology, 222(1), 26-33.

Journal - Research Article

Soo, L., Leichter, J. W., Windle, J., Monteith, B., Williams, S. M., Seymour, G. J., & Cullinan, M. P. (2012). A comparison of Er:YAG laser and mechanical debridement for the non-surgical treatment of chronic periodontitis: A randomized, prospective clinical study. Journal of Clinical Periodontology, 39(6), 537-545. doi: 10.1111/j.1600-051X.2012.01873.x

Journal - Research Article

Allsobrook, O. F. L., Leichter, J., Holborow, D., & Swain, M. (2011). Descriptive study of the longevity of dental implant surgery drills. Clinical Implant Dentistry & Related Research, 13(3), 244-254. doi: 10.1111/j.1708-8208.2009.00205.x

Journal - Research Article

Parmar, D., Hauman, C. H. J., Leichter, J. W., McNaughton, A., & Tompkins, G. R. (2011). Bacterial localization and viability assessment in human ex vivo dentinal tubules by fluorescence confocal laser scanning microscopy. International Endodontic Journal, 44(7), 644-651. doi: 10.1111/j.1365-2591.2011.01867.x

Journal - Research Article

Ohlrich, E. J., Cullinan, M. P., & Leichter, J. W. (2010). Diabetes, periodontitis, and the subgingival microbiota. Journal of Oral Microbiology, 2, 5818. doi: 10.3402/jom.v2i0.5818

Journal - Research Article

Schwass, D. R., Swain, M. V., Purton, D. G., & Leichter, J. W. (2009). A system of calibrating microtomography for use in Caries Research. Caries Research, 43(4), 314-321. doi: 10.1159/000226230

Journal - Research Article

Chandler, N., Leichter, J., Oginni, A., & Jennings, M. (2007). Dens invaginatus: A rare case in a maxillary third molar. ENDO, 1(4), 279-282.

Journal - Research Article

Wong, B. K. J., Leichter, J. W., Chandler, N. P., Cullinan, M. P., & Holborow, D. W. (2007). Radiographic study of ethnic variation in alveolar bone height among New Zealand dental students. Journal of Periodontology, 78(6), 1070-1074. doi: 10.1902/jop.2007.060366

Journal - Research Article

Eggerath, J. W., Gaßmann, G., English, H., Grimm, W.-D., & Leichter, J. W. (2006). Medikamenteninduzierte gingivale vergrößerungen: Fallbericht und literaturübersicht über ätiologie, therapie und evidenzbasierte therapieergebnisse [Drug-related gingival enlargement: Case presentation and review of the literature on etiology, therapy, and evidence-based therapy outcomes]. Parodontologie, 17(1), 25-42.

Journal - Research Article

Leichter, J. W., & Monteith, B. D. (2006). Prevalence and risk of traumatic gingival recession following elective lip piercing. Dental Traumatology, 22, 7-13.

Journal - Research Article

Eggerath, J., English, H., & Leichter, J. W. (2005). Drug-associated gingival enlargement: Case report and review of aetiology, management and evidence-based outcomes of treatment. Journal of the New Zealand Society of Periodontology, 88, 7-14.

Journal - Research Article

Reid, D., Leichter, J. W., & Thomson, W. M. (2005). Dental implant use in New Zealand in 2004. New Zealand Dental Journal, 101(1), 12-16.

Journal - Research Article

Lovegrove, J., & Leichter, J. (2004). Exposed root surface: A review of aetiology, management and evidence-based outcomes of treatment. New Zealand Dental Journal, 100(3), 72-81.

Journal - Research Article

Leichter, J. W., & Pack, A. R. C. (1999). The attitudes of New Zealand dentists and dental hygienists towards toothbrushes and toothbrushing. Journal of the New Zealand Society of Periodontology, (84), 14-17.

Journal - Research Article

Leichter, J. W., Pack, A. R. C., & Kardos, T. B. (1998). A comparison of steriological and computer-assisted histomorphometric analysis as tools for histological quantification in regenerative studies. Journal of Periodontal Research, 33, 99-104.

Journal - Research Article

Morelli, E. L., Broadbent, J. M., Leichter, J. W., & Thomson, W. M. (2018). Pregnancy, parity and periodontal disease. Australian Dental Journal, 63(3), 270-278. doi: 10.1111/adj.12623

Journal - Research Other

Horne, P. E., & Leichter, J. W. (2017). Multidisciplinary consideration for the management of palatogingival grooves on incisor teeth: A literature review. New Zealand Dental Journal, 113(3), 23-28. [Review].

Journal - Research Other

Tawse-Smith, A., Atieh, M. A., Leichter, J., Girvan, L., & Rich, A. M. (2015). Peri-implant bone loss and its uncommon causes: A case report. Clinical Advances in Periodontics, 5(4), 242-247. doi: 10.1902/cap.2014.140024

Journal - Research Other

Leichter, J. W., Lovegrove, J., & Murray, C. (2003). Elective lip piercing and gingival recession: Case report. New Zealand Dental Journal, 99(2), 42-45.

Journal - Research Other

Leichter, J. W., Lovegrove, J., & Murray, C. (2003). Elective lip piercing and gingival recession: Case report. Oral Health, 93(10), 51-56.

Journal - Research Other

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