The top three reasons for missing teeth are gum disease, dental decay and trauma. Older generations tend to lose teeth due to gum disease or extensive decay, while younger people may be more prone to trauma such as sporting accidents or high-speed motor vehicle accidents. Some people have genetically missing teeth, which is a condition called hypodontia. Regardless of the reason, a missing front tooth can affect your ability to eat and speak, and negatively impacts on your social confidence. Missing back teeth can result in poor chewing ability and even affect your general digestive health in the long run.