Ultrasonography in dentistry-A review

After William Roentgen discovered x-rays in 1895, the head & neck region began to be explored in ways that had never been possible before the development of radiology grew at a good place until the World War II. Dental radiology has long played an exerting & critical diagnostic role in dentistry, never truer than now rapidly expanding array of imaging modalities. The field of medical imaging, stimulated by advances in digital and communication technologies, has expanded greatly. New imaging techniques that reveal greater anatomical detail are now available and the evolution of ultrasound imaging is particularly attractive owing to the portability of machines & the inherent safety of low power acoustic interrogation of tissue1. All diagnostic ultrasound applications are based on the detection & display of acoustic energy reflected from interfaces within the body2.