Dental and oral health is an important part of human life and one of the things that needs serious attention from health workers. The group of elementary school- aged children is a group that often experiences dental and oral health problems due to the low habit of brushing teeth in children, so that they require vigilance good and correct of dental care. One of the most common dental and oral diseases found in elementary school-aged children is gingival inflammation (gingivitis). Brushing teeth is one of the behaviors to maintain dental and oral hygiene. Brushing teeth before bed has an important role in preventing the development of bacteria that can cause tooth decay. Good brushing habits can help prevent gingivitis because the teeth are clean of food debris and bacteria. The worse level of hygiene of a person's teeth and mouth, the more susceptible to gingivitis or inflammation of the gingival tissue. This literature review aims to determine the gingival health status of elementary school-aged children according to the habit of brushing their teeth before going to bed at night. The type of research is descriptive and experimental, data search uses the Google Scholar database. The results of the review showed that the gingival health state of elementary school-aged children on the habit of brushing teeth at night was mostly found in the criteria for mild gingivitis
