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n.f. azizan, n. mohd, b. baharin, n.m. nik azis.  (2022).  comparative effectiveness of salvadora persica oral hygiene tools with standard toothbrush in plaque and gingivitis control.  - journal of clinical periodontology.  75-76. 

zuhrah mohd sood, nik madihah nik-azis, badiah baharin, zulkfili md zainuddin, masfueh razali, haizal mohd hussaini.  (2022).  an insight into the role of periodontitis as a potential risk factor for development of erectile dysfunction.  - archives of orofacial sciences.  107-118. 

nik-madihah nik-azis, badiah baharin, dalia abdullah.  (2022).  impact of the covid-19 pandemic on the self-reported competencies of dental graduates in a malaysian setting.  - european journal of dental education.  750-755. 

shahida mohd said, nur adila mohd-norwir, ahmad najmi ariffin, huey shiuan teo, nik madihah nik-azis, haslina rani, haslinda ramli, juzaily hussain, tuti ningseh mohd dom, afendi hamat.  (2022).  validation of a simplified digital periodontal health screening module for general dental practitioners.  - healthcare.  1-9. 

nik-madihah nik-azis, nurulhuda mohd, badiah baharin, mohd shahrir mohamed said, fazalina mohd fadzilah, nor hazla mohamed haflah.  (2021).  periodontal disease in seropositive rheumatoid arthritis: scoping review of the epidemiological evidence.  - germs.  266-286. 

nik-madihah nik azis, nurulhuda mohd, fazalina mohd fadzilah, nor hazla mohamed haflah, mohd shahrir mohamed said, badiah baharin.  (2021).  rheumatoid arthritis serotype and synthetic disease-modifying anti-rheumatic drugs in patients with periodontitis: a case-control study.  - plos one.  1-13. 

nik-madihah nik-azis, fazalina mohd fadzilah, mohd shahrir mohamed said, badiah baharin & nurulhuda mohd.  (2019).  impact of rheumatoid arthritis functional status on oral and periodontal health in a multi-ethnic population.  - sains malaysiana.  645-652. 

nik fatin sarah nik mhd abdul nasser, nik madihah nik azis, badiah baharin, nurulhuda mohd..  (2018).  oral health status among dental and allied health staff in a university setting.  - malaysian journal of public health medicine.  . 

n.m. nik azis, f. mohd fadzilah, m.s. mohamed said, b. baharin, n. mohd.  (2018).  impact of rheumatoid arthritis functional status and disease activity on periodontal health: a malaysian study.  - journal of clinical periodontology.  108-109. 

nik madihah nik azis, khamiza zainol abidin.  (2016).  knowledge, attitudes and practice behaviours of healthcare professionals on association between periodontal disease and preterm and/or low birth weight infants: a malaysian study.  - malaysian journal of public health medicine.  45-52.