Oral hygiene involves cleaning the teeth and mouth to prevent disease spread and increase patient comfort. It defines oral hygiene and outlines the purposes, indications, necessary articles, aftercare, and potential complications. Articles include toothbrushes, toothpaste, gloves, and gauze for conscious patients and additional tongue depressors and forceps for unconscious patients. Aftercare includes properly disposing of waste, cleaning equipment, making the patient comfortable, and documenting the procedure and mouth assessment. Complications are not described.