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Emeritus Professor Laurence Walsh
Emeritus Professor

Laurence Walsh

Email: 

Overview

Background

Emeritius Professor Laurence J. Walsh AO is a registered specialist in special needs dentistry.

Laurence received his undergraduate education in dentistry at The University of Queensland and then undertook a PhD in immunopathology. He started his postdoctoral education at the University of Pennsylvania Medical School, and undertook his executive education at the Stanford University Graduate School of Management and at Harvard University.

His research interests are in advanced technologies such as lasers and biomaterials, and in dental microbiology. Laurence was Professor of Dental Science and the research grouip leader for advanced materials and technologies in the UQ School of Dentistry from January 2000 until his retirement in December 2020. During his retirement he remains active in hands-on research work and in supervision of research students.

Availability

Emeritus Professor Laurence Walsh is:
Not available for supervision
Media expert

Fields of research

Qualifications

  • Bachelor, The University of Queensland
  • Doctor of Philosophy, The University of Queensland
  • Doctoral Diploma, The University of Queensland
  • Postgraduate Diploma in Education, The University of Queensland
  • Academy of Dentistry International, Academy of Dentistry International
  • Faculty of Oral and Maxillofacial Pathology of the Royal College of Pathologists of Australiasia, Faculty of Oral and Maxillofacial Pathology of the Royal College of Pathologists of Australiasia
  • International College of Dentists, International College of Dentists

Research interests

  • Lasers

    lasers for diagnosis and treatment, laser safety, optical fiber systems, laser fluorescence

  • Clinical microbiology

    Dental biofilms, biofilm ecology, biocides, confocal imaging, waterline biofilms, clinical infection control

  • Materials science

    Nanomaterials, alkaline dental cements, CPP-ACP, MTA, GIC, calcium hydroxide

Research impacts

Laurence developed a range of clinical systems and technologies which are in global use, including saliva profiling for oral diseases, and assessment of dental plaque maturity and metabolism to assess dental caries risk. He developed clinical protocols for the use of CPP-ACP nanomaterials to treat and reverse white spot lesions on teeth, and specific protocols for laser procedures including laser-induced analgesia, and laser activation of fluids in endodontics. As a leading expert in both laser safety and in infection control in dentistry, he has contributed to the development of standards, guidelines and procotols for clinical practice. He serves as an advisor to a range of bodies including ACSQHC, CDNA and Standards Australia. In January 2018 he was appointed as an Officer of the Order of Australia for distinguished service to dentistry, and to dental science education, as an academic and author, to improved health and safety standards, and through roles with professional associations. In November 2020 he was made a life member of the Australian Dental Association Qld Branch.

Works

Search Professor Laurence Walsh’s works on UQ eSpace

681 works between 1983 and 2025

521 - 540 of 681 works

2000

Journal Article

Lethal laser photosensitization of Streptococcus mutans with a visible red diode laser

Stringer, G., Bird, P. S. and Walsh, L. J. (2000). Lethal laser photosensitization of Streptococcus mutans with a visible red diode laser. Australian Dental Journal, 45 (4), S22-S22.

Lethal laser photosensitization of Streptococcus mutans with a visible red diode laser

2000

Journal Article

Cytokine expression in oral lichen planus

Daley, T. J., Harbrow, D., Khan, A., Savage, N. W., Sugerman, P. B. and Walsh, L. J. (2000). Cytokine expression in oral lichen planus. Australian Dental Journal, 45 (4 Supp.), S28-S28.

Cytokine expression in oral lichen planus

2000

Journal Article

Safety issues relating to the use of hydrogen peroxide in dentistry

Walsh, Laurence J. (2000). Safety issues relating to the use of hydrogen peroxide in dentistry. Australian Dental Journal, 45 (4), 257-269. doi: 10.1111/j.1834-7819.2000.tb00261.x

Safety issues relating to the use of hydrogen peroxide in dentistry

2000

Journal Article

Molecular and cell biology of the gingiva

Walsh, LJ and Narayanan, S (2000). Molecular and cell biology of the gingiva. Periodontology 2000, 24 (1), 28-55. doi: 10.1034/j.1600-0757.2000.2240103.x

Molecular and cell biology of the gingiva

2000

Journal Article

Preventive dentistry - reply

Walsh, L. J. (2000). Preventive dentistry - reply. Australian Dental Journal, 45 (3), 216-216.

Preventive dentistry - reply

2000

Journal Article

Preventive dentistry for the general dental practitioner

Walsh, L. J. (2000). Preventive dentistry for the general dental practitioner. Australian Dental Journal, 45 (2), 76-82. doi: 10.1111/j.1834-7819.2000.tb00245.x

Preventive dentistry for the general dental practitioner

2000

Journal Article

Orthodontic tooth movement in the prednisolone-treated rat

Ong, Colin K. L., Walsh, Laurence J., Harbrow, Douglas, Taverne, Aart A. R. and Symons, Anne L. (2000). Orthodontic tooth movement in the prednisolone-treated rat. Angle Orthodontist, 70 (2), 118-125. doi: 10.1043/0003-3219(2000)0702.0.CO;2

Orthodontic tooth movement in the prednisolone-treated rat

2000

Journal Article

Cell-mediated cytotoxicity and matrix metalloproteinases in lichen planus: A tale of chickens and eggs.

Sugerman, PB, Zhou, XJ, Bigby, M, Savage, NW and Walsh, LJ (2000). Cell-mediated cytotoxicity and matrix metalloproteinases in lichen planus: A tale of chickens and eggs.. Journal of Dental Research, 79 (5), 1047-1047.

Cell-mediated cytotoxicity and matrix metalloproteinases in lichen planus: A tale of chickens and eggs.

2000

Journal Article

An assessment of a new method for toothbrush storage and cleaning

Le, P. T. V. and Walsh, L. J. (2000). An assessment of a new method for toothbrush storage and cleaning. Australian Dental Journal, 45 (4), S32-S32.

An assessment of a new method for toothbrush storage and cleaning

2000

Conference Publication

Comparisons of five selective media for enumeration of Streptococcus mutans

Wan, A. K. L., Seow, W. K., Walsh, L. J. and Bird, P. S. (2000). Comparisons of five selective media for enumeration of Streptococcus mutans. 78th General Session of IADR, Washington DA, 5-8 April 2000. Alexandria VA: American Association for Dental Research.

Comparisons of five selective media for enumeration of Streptococcus mutans

2000

Journal Article

An assessment of techniques for dehydrating root canals using infrared laser radiation

Amyra, T. and Walsh, L. J. (2000). An assessment of techniques for dehydrating root canals using infrared laser radiation. Australian Endodontic Journal, 26 (2), 78-80. doi: 10.1111/j.1747-4477.2000.tb00277.x

An assessment of techniques for dehydrating root canals using infrared laser radiation

2000

Journal Article

Fifteen strategies for dental caries prevention: towards target zero

Walsh, L. J. (2000). Fifteen strategies for dental caries prevention: towards target zero. ADA News Bulletin (279), 5-8.

Fifteen strategies for dental caries prevention: towards target zero

2000

Journal Article

Risk reduction for dental unit biofilms

Walsh, L. J. (2000). Risk reduction for dental unit biofilms. ADA News Bulletin (283), 30-32.

Risk reduction for dental unit biofilms

2000

Journal Article

Factors influencing bacterial levels in dental unit water lines.

Le, Ptv, Jones, M, Savage, NW and Walsh, LJ (2000). Factors influencing bacterial levels in dental unit water lines.. Journal of Dental Research, 79 (5), 1053-1053.

Factors influencing bacterial levels in dental unit water lines.

2000

Conference Publication

Disinfection of Root Canals by Laser Dye Photosensitization

Silbert, T, Bird, PS, Milburn, GJ and Walsh, LJ (2000). Disinfection of Root Canals by Laser Dye Photosensitization. 78th General Session of IADR, Washington DC, 5-8 April 2000. Alexandria, VA: American Assoc of Dental Research.

Disinfection of Root Canals by Laser Dye Photosensitization

2000

Journal Article

Comparison of five selective media for the growth and enumeration of Streptococcus mutans (Abstract)

Wan, A. K. L., Seow, W. K., Walsh, L. J. and Bird, P. S. (2000). Comparison of five selective media for the growth and enumeration of Streptococcus mutans (Abstract). Australian Dental Journal, 45 (4), S24-S24.

Comparison of five selective media for the growth and enumeration of Streptococcus mutans (Abstract)

2000

Journal Article

Matrix metalloproteinases in oral lichen planus.

Zhou, XJ, Savage, NW and Walsh, LJ (2000). Matrix metalloproteinases in oral lichen planus.. Journal of Dental Research, 79, 409-409.

Matrix metalloproteinases in oral lichen planus.

2000

Journal Article

Periodontal implications of immunodeficient states: manifestations and management

Bartold, P. M., Marshall, R. I., Pattni, R., Seymour, G. J. and Walsh, L. J. (2000). Periodontal implications of immunodeficient states: manifestations and management. Journal of the International Academy of Periodontology, 2 (3), 79-93.

Periodontal implications of immunodeficient states: manifestations and management

2000

Journal Article

Anti-cariogenic actions of milk and cheese produces, and their clinical application

Walsh, L. J. (2000). Anti-cariogenic actions of milk and cheese produces, and their clinical application. ADA News Bulletin (278), 17-20.

Anti-cariogenic actions of milk and cheese produces, and their clinical application

2000

Conference Publication

Educational impact of a CD-ROM tutor in dental radiology

Mubarak, SM, Walsh, LJ and Symons, AL (2000). Educational impact of a CD-ROM tutor in dental radiology. 39th Annual Meeting of IADR ANZ Division, Adelaide, 27-29 September 1999. Alexandria VA: American Association for Dental Research.

Educational impact of a CD-ROM tutor in dental radiology

Funding

Current funding

  • 2024 - 2025
    Topically applied antimicrobial nanocomposites in Dentistry
    SDI
    Open grant
  • 2023 - 2026
    Oral Health in Aged Care: Addressing Oral Health Inequity and Unmet Dental Care Needs of Vulnerable Population
    NHMRC MRFF Dementia, Ageing and Aged Care Mission
    Open grant

Past funding

  • 2023
    Assessing the level of adherence to the new developed work-based oral care bundles for critical care patients to ensure service quality
    Australian Dental Research Fund Inc
    Open grant
  • 2023
    Motion sensor and haptic technologies in evaluating and training postural habits for optimum ergonomic clinical practice
    Australian Dental Research Fund Inc
    Open grant
  • 2023
    The impact of oral piercings: An investigation into the rate of metal dissolution and metal ion release under acidic challenge
    Australian Dental Research Fund Inc
    Open grant
  • 2022 - 2023
    Assessing the level of adherence to current work-based guidelines in oral care for critical care patients to improve service quality
    Metro North Hospital and Health Service
    Open grant
  • 2022 - 2023
    3D bioprinting based tunable microRNAs delivery for bone tissue engineering
    Australian Dental Research Fund Inc
    Open grant
  • 2022 - 2023
    Cyclic fatigue resistance of conventional and thermo-mechanically treated nickel-titanium rotary endodontic instruments: an experimental and finite element analysis study
    Australian Dental Research Fund Inc
    Open grant
  • 2022 - 2023
    Oral health manifestations and risk in Rett syndrome: a clinical crosssectional study
    Australian Dental Research Fund Inc
    Open grant
  • 2021
    Comparative analysis of immunomodulatory impact of plasmid DNA-BMP-2 delivered by core-cone mesoporous silica nanoparticle versus recombinant BMP-2 to macrophages
    Australian Dental Research Fund Inc
    Open grant
  • 2015 - 2016
    An evaluation of whole biofilm models on titanium implants: a proof of concept study
    Australian Periodontology Research Foundation, The
    Open grant
  • 2015 - 2018
    A controlled trial of CPP-ACP toothpaste in 6 year old children
    Oral Health CRC Limited
    Open grant
  • 2015 - 2017
    Femtosecond Quantum Wave Packet Pulses for Safe Laser Cutting of Dental Enamel
    Australian Dental Research Fund Inc
    Open grant
  • 2015
    The Oral Microbiome and its Lifestyle in Health and Disease - Novel Strategies for Manipulation and Therapy
    UQ Major Equipment and Infrastructure
    Open grant
  • 2014 - 2016
    Effects of stevia (Stevioside and Rebaudioside A) on metabolism of selected cariogenic microorganisms
    Australian Dental Research Fund Inc
    Open grant
  • 2014 - 2017
    Femtosecond Quantum Wave Packet Pulses for Safe Laser Cutting of Dental Enamel
    Australian Dental Research Fund Inc
    Open grant
  • 2013 - 2016
    A longitudinal controlled study to prevent early childhood caries from ages 0-6 years in a disadvantaged community in Queensland
    NHMRC Project Grant
    Open grant
  • 2013 - 2016
    Novel debridement methods of dental implant surfaces contaminated by a dental biofilm: a proof of concept study
    Australian Dental Research Fund Inc
    Open grant
  • 2012 - 2014
    New multi-arm hybrid nanoparticles for the improvement of mechanical and antibacterial properties of glass ionomer cement
    UQ Collaboration and Industry Engagement Fund
    Open grant
  • 2012 - 2016
    Effects of Tooth Mousse and Tooth Mousse Plus on remineralisation and fluoride uptake in artificially demineralised enamel: an in situ study using Electron Probe Micro Analysis
    Australian Dental Research Fund Inc
    Open grant
  • 2012 - 2013
    Enamel surface injury during dental procedures
    Australian Dental Research Fund Inc
    Open grant
  • 2012 - 2014
    Widening the Practical and Clinical Scope of Mineral Trioxide Aggregate
    Australian Dental Research Fund Inc
    Open grant
  • 2011 - 2012
    Association between plaque micro-environments and dental caries risk
    Dental Hygiene Research Fund
    Open grant
  • 2011 - 2016
    Caries prevention using GC Tooth Mousse with antimicrobial properties
    Oral Health CRC Limited
    Open grant
  • 2011
    Expanding the role of the Oral Health Therapist in Health Care
    Queensland Health
    Open grant
  • 2011
    The role of the Oral Health Educator ('Dental Educator'): Development of a model
    Queensland Health
    Open grant
  • 2010 - 2015
    An in situ model for remineralization
    Oral Health CRC Limited
    Open grant
  • 2010 - 2015
    Tooth surface protection using adhesive materials
    Oral Health CRC Limited
    Open grant
  • 2010 - 2011
    Laser-generated cavitations as a cleaning technology in dentistry
    UQ FirstLink Scheme
    Open grant
  • 2010
    Redox factors and smear layer in tetracycline-induced discolouration of endodontically treated teeth.
    Australian Dental Research Fund Inc
    Open grant
  • 2008 - 2009
    Effectiveness of the EndoVac negative pressure irrigation system in comparison to needle delivery irrigation
    Australian Dental Research Fund Inc
    Open grant
  • 2008 - 2009
    Disinfection of root canals using ozone
    Australian Dental Research Fund Inc
    Open grant
  • 2008 - 2010
    Implant surface debridement using lasers
    Australian Dental Research Fund Inc
    Open grant
  • 2008 - 2009
    Rebalance the oral envrionment using casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) as a mouthspray.
    Australian Dental Research Fund Inc
    Open grant
  • 2008 - 2015
    Student Research Grants 2008
    Australian Society of Orthodontists' Foundation
    Open grant
  • 2007 - 2010
    Antibacterial effects of CPP-ACP vs. ozone therapy on root surface caries.
    Australian Dental Research Fund Inc
    Open grant
  • 2007 - 2010
    Clinical trial of CPP-ACP versus KNO3 approaches for the home-based treatment of cervical dentinal hypersensitivity
    Australian Dental Research Fund Inc
    Open grant
  • 2007 - 2010
    Dental risk assessment in defense personnel using chairside diagnostic tools
    Australian Dental Research Fund Inc
    Open grant
  • 2007 - 2009
    Improving critical thinking, metacognition, professional development and evidence based practices through reflective learning
    Australian Dental Research Fund Inc
    Open grant
  • 2007
    Operating parameters for middle infrared lasers in dental hard tissues
    Australian Dental Research Fund Inc
    Open grant
  • 2006
    The effect of establishment of a coronal seal following contamination of the root canal system
    Australian Society of Endodontology Inc Federal Branch
    Open grant
  • 2006
    Detection of bacteria in the pulp chamber and root canal space using laser fluorescence
    Australian Society of Endodontology Inc Federal Branch
    Open grant
  • 2006
    Photoactivated disinfection of Enterococcus faecalis in biofilms
    Australian Society of Endodontology Inc Federal Branch
    Open grant
  • 2006
    Assessment of Laser-Activated Fluoride Therapy By Surface Analysis
    Australian Dental Research Fund Inc
    Open grant
  • 2006 - 2010
    Casein Phosphopeptide-Amorphous Calcium Phophate (CPP-ACP) As a Dental Bioflim Repellent and its Effects Against Cariogenic and non-Cariogenic Oral Bacteria - A Pilot Study
    Australian Dental Research Fund Inc
    Open grant
  • 2006 - 2010
    Detection of Bacteria in the Pulp Chamber and Root Canal Space Using Laser Flurorescence
    Australian Dental Research Fund Inc
    Open grant
  • 2006 - 2010
    Detection of Subgingival Calculus Using Fluorescence and Differential Reflectometry
    Australian Dental Research Fund Inc
    Open grant
  • 2006
    Effect of Bur Surface Design on Surface Roughness of Preparations
    Open grant
  • 2006 - 2010
    Fluroescence as an Aid to Recognition of Tooth Coloured Restorations in Forensic Odontology
    Australian Dental Research Fund Inc
    Open grant
  • 2006
    Operating Parameters for 2 micron (Ho:YAG) Lasers in Dental Hard Tissues
    Australian Dental Research Fund Inc
    Open grant
  • 2006 - 2010
    Photoactivated Disinfection of Enterococcus faecalis in Biofilms
    Australian Dental Research Fund Inc
    Open grant
  • 2006 - 2013
    Rapid Assessment of Plaque Acid Production and its Relationship to Plaque Microbiota
    Australian Dental Research Fund Inc
    Open grant
  • 2006
    The Effect of Bur Configurations On Accuracy When Milling Ceramic Blocks in CAD-CAM
    Australian Dental Research Fund Inc
    Open grant
  • 2005 - 2007
    Clinical and Pre-clinical trials of optical methods for detecting subgingival calculus
    Australian Periodontology Research Foundation, The
    Open grant
  • 2005 - 2010
    Operating Parameters For Er:YAG Laser Hard Tissue Applications In Deciduous Teeth
    Australian Dental Research Fund Inc
    Open grant
  • 2004
    Fluorescence Analysis Of Dental Hard Tissues For Their Controlled Ablation
    Australian Dental Research Fund Inc
    Open grant
  • 2004 - 2010
    GIC Materials For The Prevention of Demineralization At The Tooth Denture Interface
    Australian Dental Research Fund Inc
    Open grant
  • 2004
    In Vivo Fluorescence Spectroscopy Of Hard And Soft Pigmented Tissues
    University of Queensland Research Development Grants Scheme
    Open grant
  • 2004
    Root canal preparation with middle infrared lasers
    Australian Dental Research Fund Inc
    Open grant
  • 2004
    Therapeutic And Diagnostic Applications Of Low Power Lasers On Enamel And Dentine
    Australian Dental Research Fund Inc
    Open grant
  • 2002 - 2003
    Optimisation of current resin photopolymerisation systems
    Australian Dental Research Fund Inc
    Open grant
  • 2002 - 2003
    A longtitutional assessment of changes in enamel mineral vivo using laser flourescence
    Australian Dental Research Fund Inc
    Open grant
  • 2002
    The role of TNF-a in the pathogenesis of oral lichen planus
    Australian Dental Research Fund Inc
    Open grant
  • 2001
    Paradigms for Microbiological assessment of dental caries risk
    GC Corporation C/- Halas Dental
    Open grant
  • 2001 - 2003
    A Controlled study of the oral colonisation of Streptococcus mutans in preterm infants
    Australian Dental Research Fund Inc
    Open grant
  • 2001 - 2003
    Effect of Prostaglandin E2 on Periodontal Regenation and Alveolar Bone Formation in the Rat
    NHMRC Project Grant
    Open grant
  • 2001
    The effects of low level laser therapy and near-monochromatic non-coherent red light on cell proliferation and wound healing in vitro
    Australian Dental Research Fund Inc
    Open grant
  • 2001
    Triggers of Keratinocyte Apoptosis in Oral Lichen Planus
    Australian Dental Research Fund Inc
    Open grant
  • 2000
    Co-localisation of CD8+ t Cells and apoptotic keratinocytes in oral lichen planus
    Australian Dental Research Fund Inc
    Open grant
  • 2000 - 2001
    Comparison of four media for the growth of streptococcus mutans
    Australian Dental Research Fund Inc
    Open grant
  • 2000
    Matrix metalloproteinase gene expression in T cells from oral lichen planus
    Australian Dental Research Fund Inc
    Open grant
  • 2000
    Novel strategies for enhancing topical dental anaesthesia
    Australian Dental Research Fund Inc
    Open grant
  • 1999
    Cell-Mediated Cytotoxicity and Keratinocyte Antigens in Oral Lichen Planus
    Australian Dental Research Fund Inc
    Open grant
  • 1999
    Killing of bacteria in adherent biofilms and planktonic forms by dye-coupled laser photosensitisation
    ARC Australian Research Council (Small grants)
    Open grant
  • 1999
    Lethal laser photosensitisation (LLP) techniques for sterilisation of root canals
    Australian Dental Research Fund Inc
    Open grant
  • 1998
    Cellular microenvironments in the oral lichen planus lesion
    Australian Dental Research Fund Inc
    Open grant
  • 1998
    Mechanisms in the induction phase of oral lichen planus
    Mayne Bequest Fund
    Open grant
  • 1998
    Removal of orthodontic brackets using carbon dioxide laser radiation
    Australian Dental Research Fund Inc
    Open grant
  • 1998
    The opsonic activity of P.gingivalis-specific antibodies: The role of autologous serum in phagocytosis and neutrophil activation in adult periodontitis
    Australian Dental Research Fund Inc
    Open grant
  • 1997
    The proto-oncogene, oncoprotein and the apoptosis network in oral squamous cell carcinoma
    Australian Dental Research Fund Inc
    Open grant
  • 1996
    Carbon dioxide laser sintering for fabrication of dental restorations
    ARC Australian Research Council (Small grants)
    Open grant
  • 1996
    Direct and indirect costs of implementing problem-based learning into "traditional" professional courses within universities
    DEET Evaluations & Investigations Program
    Open grant
  • 1996 - 1998
    Immunobiology of inflammation in human dental pulp
    NHMRC Project Grant
    Open grant
  • 1996
    Lethal laser photosensitisation (LLP) in the treatment of dental caries
    Australian Dental Research Fund Inc
    Open grant
  • 1995 - 1997
    Modulation of dental pulp adhesion molecule expression in an organ culture model.
    Australian Society of Endodontology (Qld)
    Open grant
  • 1995 - 1997
    Immunity to porphyromonas gingivalis antigens in periodontal disease
    NHMRC Project - Special Initiative Grant
    Open grant
  • 1995
    Infrared laser effects on dental restorative materials
    ARC Australian Research Council (Small grants)
    Open grant
  • 1995
    Laboratory studies of carbon dioxide laser etching
    Australian Dental Research Fund Inc
    Open grant

Supervision

Availability

Emeritus Professor Laurence Walsh is:
Not available for supervision

Supervision history

Current supervision

Completed supervision

Media

Enquiries

Contact Emeritus Professor Laurence Walsh directly for media enquiries about:

  • Cavities - teeth
  • Clinical dental microbiology
  • Dental caries
  • Dental equipment
  • Dental technologies - lasers
  • Dentistry
  • Lasers - dental technologies
  • Microbiology - dentistry
  • Preventive dentistry
  • Technology - in dentistry

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