Academic Staff

Chang, Jeffrey Wen Wei

Dr Chang, Jeffrey Wen Wei

BDS (India), MDS (HK)

Title: Clinical Assistant Professor in Endodontics
Discipline area: Endodontology
Tel: 2859 0285
Research profiles: HKU Scholars Hub Scopus ORCID

Areas of Research Expertise

  1. Restoration of endodontically treated teeth
  2. Endodontic disinfection
  3. Endodontic materials and applications

Faculty Research Group

Selected Latest Publications


  1. PradeepKumar AR, Shemesh H, Chang JWW, Bhowmik A, Sibi S, Gopikrishna V, Lakshmi-Narayanan L & Kishen A. Preexisting Dentinal Microcracks in Nonendodontically Treated Teeth: An Ex Vivo Micro–computed Tomographic Analysis. Journal of Endodontics 2017;43:896-900. doi:10.1016/j.joen.2017.01.026
  2. Chang JWW, Praisarnti C & Neelakantan P. Increasing use of Bioceramics in endodontics: A narrative review. Oral Health 2017;.
  3. Ho ESS, Chang JWW & Cheung GSP. Quality of root canal fillings using three gutta-percha obturation techniques. Restorative Dentistry & Endodontics 2016;41:22. doi:10.5395/rde.2016.41.1.22
  4. Li D, Jiang SM, Yin X, Chang JWW, Ke J & Zhang C. Efficacy of Needle, Ultrasonic, and Endoactivator Irrigation and Photon-Induced Photoacoustic Streaming in Removing Calcium Hydroxide from the Main Canal and Isthmus: An In Vitro Micro-Computed Tomography and Scanning Electron Microscopy Study. Photomedicine and Laser Surgery 2015;33:330-337. doi:10.1089/pho.2015.3903
  5. Taschieri S, Fabbro MD, Samaranayake LP & Chang JWW. Microbial Invasion Of Dentinal Tubules: A Literature Review And A New Perspective. Journal of Investigative and Clinical Dentistry 2014;5:163 - 170. doi:10.1111/jicd.12109
  6. Bridges SM, Chang JWW, Chu CH & Gardner K. Blended learning in situated contexts: 3-year evaluation of an online peer review project. European Journal of Dental Education 2014;18:170-179. doi:10.1111/eje.12082
  7. Ekambaram M, Yiu CKY, Matinlinna JP, Chang JWW, Tay FR & King NM. Effect of chlorhexidine and ethanol-wet bonding with a hydrophobic adhesive to intraradicular dentine. Journal of Dentistry 2014;42:872-882. doi:10.1016/j.jdent.2014.02.006
  8. Chang JWW, Cheung AW & Cheung GSP. Effect of root canal dimensions, injection rate, and needle design on the apical extrusion of an irrigant: an in vitro study. Journal of Investigative and Clinical Dentistry 2014;6(3):221-7. doi:10.1111/jicd.12092
  9. Seneviratne CJ, Yip WY, Chang JWW, Zhang C & Samaranayake LP. Effect of culture media and nutrients on biofilm growth kinetics of laboratory and clinical strains of Enterococcus faecalis. Archives of Oral Biology 2013;58(10):1327-1334. doi:10.1016/j.archoralbio.2013.06.017
  10. Zhu XF, Yin XZ, Chang JWW, Wang YU, Cheung GSP & Zhang C. Comparison of the antibacterial effect and smear layer removal using photon-initiated photoacoustic streaming aided irrigation versus a conventional irrigation in single-rooted canals: an in vitro study. Photomedicine and Laser Surgery 2013;31(8):371-377. doi:10.1089/pho.2013.3515

Research Grants

Principal Investigator :

  1. 2011-: Diagnostic and prognostic markers related to pathogenic bacteria in endodontic lesions of failed cases [Small Project Funding] (HKD57,320)
  2. 2009-2011: Efficacy of root canal irrigation for debris and tissue removal [Seed Funding Programme for Basic Research] (HKD120,000)

Co-Investigator :

  1. 2013-: Bcl-2 and cMyc gene-transfected dental pulp stem cells outcompete bone marrow-derived cells in dental pulp regeneration [National Natural Science Foundation of China (NSFC) - General Program] (HKD879,200) (with ZHANG Chengfei et al)
  2. 2011-: Stem cells in human dental pulp with irreversible pulpitis and their potential for tissue regeneration [Small Project Funding] (HKD47,576) (with CHEUNG Shun Pan et al)

Honours and Awards

  1. Evaluation of a Clinical Session Diary - Student and Staff Feedback - Best Oral Presentation The 24th South East Asian Association of Dental Education, Bangkok, Thailand. 2013. Botelho MG, Bridges SM, Yiu CKY, Zwahlen RA, Ho KL & Chang JWW.
  2. Best Oral Presentation 2012 Commonwealth Dental Association / Malaysian Dental Association Joint International Scientific Convention. 2012. Soo I, Chang JWW & Cheung GSP.
  3. Best Oral Presentation 22nd Annual Scientific Meeting of the South East Asian Association of Dental Education (SEAADE). 2011. Bridges SM, Chang JWW & Chu CH.

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