It is estimated that oral diseases affect 3.5 billion people worldwide and untreated dental caries or tooth decay of permanent teeth is one of the most prevalent diseases globally. Poor oral health.
Head and neck cancer includes epithelial malignancies of the upper aerodigestive tract, including the paranasal sinuses, nasal cavity, oral cavity, pharynx, and larynx; and, as the sixth most common.
Head and neck cancers cause 650,000 deaths annually worldwide thenews.com.pk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from thenews.com.pk Daily Mail and Mail on Sunday newspapers.