The purpose of the study is to review and present the aims and the applications of Forensic dentistry. Bite marks are usually seen in cases involving sexual assault, murder, child abuse and can be a major factor in leading to a conviction. Bite marks can be found anywhere on a body particularly on soft and fleshy tissue such as the stomach or buttocks. In addition, bite marks can be found on objects present at the scene of the crime. However, there are two types of family violence, the child abuse and the adult violence in the house or marital abuse or elder abuse. These types of family violence can happen to any of environment. Child abuse, intimate partner abuse and elder abuse victims often have signs of injury or bite marks that are readily visible to dentists. Dentists have a moral and legal obligation to recognize and report suspected abuse. It is important to realize that all dentists have a unique opportunity and ethical obligation to assist in the struggle against child abuse. The dentists are likely to be in contact with these individuals who have been exposed to this kind of violence. The dental team that is alert to the fact that many elderly or vulnerable person or child are abused and that many of these abused individuals have injuries to the head and around the mouth may be able to identify an abused person and institute steps that might save someone s life. Finally, the important role of forensic odontology in archaeological research is reported.