nor wati nur atikah mustafa, rohana ahmad, muhammad asif ahmad khushaini, nur hafizah kamar affendi, siti mariam ab ghani, su keng tan, muhammad hussain ismail, chui ling goo, mohd zulkifli kassim, tong wah lim, lay kek teh.  (2024).  porous niti dental implant fabricated by a metal injection molding: an in vivo biocompatibility evaluation in an animal model.  - acs biomaterials science & engineering.  405-419. 

mohd zulkifli kassim, nor wati nur atikah mustafa, rohana ahmad, nadim z baba.  (2024).  the effect of brand, thickness, and abutment substrate on the masking ability of monolithic zirconia ceramics.  - archives of orofacial sciences.  19 - 30. 

mohd zulkifli kassim, fadzlina abd karim, tengku fazrina tengku mohd ariff.  (2023).  repositioning an implant-retained auricular prosthesis using custom acrylic base: a clinical report.  - malaysian journal of medicine and health sciences.  378-381. 

mohd zulkifli kassim, lim xin yi, tay shu kim, lavanyah ponnuthurai.  (2023).  thickness as a factor in masking ability of translucent monolithic zirconia, a pilot study.  - 9th regional dental meeting & exhibition in conjunction with the international dental conference of sumatera utara 2023.  1. 

norziha yahaya, masfuah razali, yew hsu zenn, mohd zulkifli kassim.  (2022).  abstract and proceeding book for faculty of dentistry ukm research, innovation & entrepreneurship symposium 4.0 2022.  - abstract and proceeding book for faculty of dentistry ukm research, innovation & entrepreneurship symposium 4.0 2022.  1-98. 

nurul jannah zulkefle, mohd zulkifli kassim, nurul hanim othman, noor aaina zainon, aiemeeza rajali, tengku fazrina tengku mohd ariff.  (2022).  selection of precision attachment for attachment-retained partial denture prostheses: a case series.  - 45th european prosthodontic association (epa) congress 2022 (europrostho 2022).  4. 

mohd zulkifli kassim, nor wati nur atikah mustafa, rohana ahmad, siti mariam ab ghani, hazlina abdul ghani.  (2021).  masking ability of translucent monolithic zirconia ceramic: the effect of thickness.  - international transaction journal of engineering management & applied sciences & technologies.  1-9.