Dr. Chng was an Assistant Professor with the Department of Restorative Dentistry, National University of Singapore (2001-2005) where she taught the undergraduate and post-graduate Endodontic Residency Programme. Her research interest in Endodontics and dental hard tissues resulted in 2 patents being filed, in addition to numerous scientific papers and abstracts in peer-reviewed journals.

Dr Chng has given lectures, presentations and conducted hands-on courses on Endodontics at many professional conferences at both the domestic and international level. Dr Chng's practice is restricted to Endodontics since 2007.