ABSTRACT
Forensic expertise methodology normally used in different criminal investigation and forensic medicine field such as blood type, anthropologic analysis and forensic dentistry (dental records, X-rays, bite marks, among others) solved and will continue solving many crimes. Those methods will continue estimating age of several people. Nevertheless, since the development of genetics and molecular biology there were an increase in number and quality of solved cases. The present work points out the importance to associate certain forensic biology areas to traditional investigation methods in human identification, especially with forensic dentistry. It also shows that in some situations, teeth are an important source to genetic analysis and molecular studies. After a scientific literature review it was concluded that it is mandatory that those in forensic investigations acquire knowledge in forensic genetics in order to apply with traditional investigation techniques, this fact would produce an increase of information to Justice.