In recent time the tooth pain has become an issue for every second individual. Without successful endodontics. we are unable to provide many patients with two of their most important facets - their ability to smile while displaying their natural teeth and their ability to use their natural teeth to eat with pain-free function.To overcome this facet, first there has to be building an accurate diagnosis. Diagnosis in dentistry may be defined as 'the process where the data obtained from questioning, examining and testing are combined by the dentist to identify deviations from the normal.