Crowding is a common dental condition that occurs when there is not enough space in your mouth for all your teeth to fit properly. This can result in teeth overlapping, rotating, or becoming crooked. Crowding can be caused by a variety of factors, including genetics, tooth loss, and poor dental habits. Crowding can lead to a number of dental problems, such as difficulty cleaning your teeth, which can increase the risk of tooth decay and gum disease. It can also cause discomfort, difficulty biting and speaking, and can negatively impact your self-esteem.