Nadia Rahouma, Khyria Dhaw Omar. A Retrospective Study on the Prevalence of Periodontal Disease Among Libyan Adults . Khalij-Libya J Dent Med Res [Internet]. 2023 Oct. 21 [cited 2024 Oct. 24];:110-4. Available from: http://journals.khalijedental.com.ly/index.php/ojs/article/view/63