The length should  a minimum of 11 pages including 1 or 2 pages of references but not included front page.
1 space line, font size 11     

Topic: Burden of Oral diseases

– Background about oral health and disease
-Burden of oral diseases
– Determinants/ risk factors of oral diseases
– prevalence of oral disease worldwide
– prevalence of oral disease Saudi Arabia
– oral health promotion and prevention initiatives and strategies globally and in Saudi arabia
– current challenges to control oral diseases
-Conclusion
( you can add any relevant subtitles as long as it serves the purpose of this essay)

the essay should be plagiarism free and should include statistical numbers of oral disease
preferbally refreneces should be updated
The essay should be written  from public health perspectives
finally the references should be from scientific articals 
and the reports/statistcs from reputable organization like world health organization