Poor oral hygiene refers to the inadequate care of teeth and gums, which can lead to various dental problems. This condition often results from infrequent brushing and flossing, allowing plaque—a sticky film of bacteria—to build up on teeth. If not removed, plaque can harden into tartar, leading to cavities and gum disease. Common signs of poor oral hygiene include bad breath, swollen or bleeding gums, and tooth decay. Maintaining good oral hygiene involves regular brushing with fluoride toothpaste, daily flossing, and routine visits to the dentist for check-ups and cleanings.