jiang yuhao, hu long, suet yeo soo, hetal a/l ashvin kumar, in meei tew.  (2023).  accuracy of smartphone 3d scanner in dental models digitisation: a pilot sstudy.  - 30th mda scientific convention and trade exhibition (scate 2023).  1-20. 

seevalingam, rajeletchmi, yahaya, norziha, mohamed, alizae marny, kumar, hetal.  (2022).  artificial white spot lesion formation on human extracted teeth: an in-vitro study.  - racds-usm conference in conjunction with 1st racds international committee annual scientific meeting.  25. 

chong, jun ai, adam, fara azwin, ang, yee, hassan, laila azwa, mavani, hetal ashvin kumar, rajandram, rama krsna.  (2022).  evaluation of dental students medical history records in national university of malaysia.  - racds-usm conference in conjunction with 1st racds international committee annual scientific meeting.  20. 

hetal ak , wong l. , alida m. , yew hz , ahmad rohi g. , tew im.  (2020).  the potential use of effective eco-produce as endodontic irrigant: antimicrobial efficacy against enterococcus faecalis.  - 19th annual scientific meeting and 21st annual general meeting of malaysian section iadr.  83.