This discipline deals with diseases of the gums. It is one of the first clinical subjects the undergraduate encounters in the dental course. Through the lectures, tutorials and clinical sessions, undergraduates study about the normal and pathological tissues of the periodontium as well as the aetiology and classification of gingival and periodontal disease. Students in their third and final year treat patients with periodontal problems. They are also given the opportunity to perform simple periodontal surgical procedures during their final year.