6.1  The oral cavity and oral health

We begin this study session by introducing you to the anatomy and functions of the mouth and its associated structures. This will enable you to understand the oral diseases and disorders described later. According to the WHO, oral health means being free from the following conditions: chronic mouth and facial pain, oral or throat cancer, oral sores, birth defects such as cleft lip and palate, gum disease, tooth decay, and tooth loss.