This book entitled " Nitty Gritty of Diagnostic aids in Endododntics" gives you the detailed information regarding the importance of accurate diagnosis in endodontics by knowing about different pulpal & peri radicular diseases their etiologies and diagnostic aids to use in particular situation. In the modern world, there are so many recent advances in diagnosis which are enhanced by newer technologies. The style of this improvement is targeted towards increasing the objectivity sensitivity and reproducibility of the pulp tests while decreasing the patient's discomfort. Methods like Pulse Oximetry, Laser Doppler Flowmetry, Ultrasound Doppler, Dual Wavelength Spectroscopy, Photoplethysmography are being developed and evolved to get adapted to the current clinical setting which may be of great use to the modern endodontist. These new methods fulfill the necessity of choosing the best tools for a good diagnosis. Therefore this book could contribute to fill the gaps and will serve as a guide for students and clinicians.