Oral hygiene refers to the practices and maintenance required to keep the teeth, gums, and tissues of the mouth clean and healthy. Proper care minimizes the accumulation of plaque, a sticky film of bacteria that constantly forms on tooth surfaces. If left unchecked, plaque can lead to gingivitis, an inflammation of the gums, and eventually periodontitis, which can damage the supporting bone structures. Maintenance generally involves routine mechanical removal of plaque through brushing and flossing to prevent the buildup of tartar, which requires professional intervention to remove. Maintaining good oral health is essential not only for preventing localized dental disease but also because the oral cavity is interconnected with other bodily systems, making good hygiene a fundamental aspect of overall systemic health.