Dental flossing is an essential part of oral healthcare, necessary for removing plaque, bacteria, and food particles that brushing alone cannot address. Regular flossing helps prevent gum disease, cavities, and bad breath, contributing to overall dental hygiene and a brighter smile. Proper flossing technique involves measuring 18 inches of floss and using a sawing motion gently between teeth, making a C shape to effectively clean without harming gums.