INTRODUCTION X-rays are the oldest and most commonly used form of medical imaging. The X-ray uses a small dose of ionizing radiation to produce photographs of a body’s internal organs and structures. The procedure is quick and painless, and has been done for decades to help doctors diagnose fractured bones, look for injuries or infections, and to locate foreign objects in soft tissue without having to make an incision. HOW DOES AN X-RAY WORK? X-rays are similar to visible light.
Panoramic X-rays can also assist in finding patients with jaw joint problems, help determine if someone needs full or partial dentures, assist in the placement of braces, find impacted teeth, and most importantly, help identify people who are at risk or already have oral cancer or other growths on the jaw (Gordon para 6). The panoramic X-ray can also to locate some uncommon problems, such as calcification within the carotid artery, which can help figure out how high the potential of developing a stroke is. In another unusual situation, Dr. Jerry Gordon once had a patient who had been suffering for years with frequent sinus infections, the panoramic X-ray later revealed that an infected tooth was growing upside-down in his sinus, which explained why the patient had recurring sinus infections. “The panoramic X-ray is an
The first tool that oral professionals use for caries detection is done visually by using their eyes. The oldest method for detecting the changes within the tooth structure is the microporosity of enamel, which is done with the transmission of light through the enamel. Next, would be color changes within the tooth enamel and dentin followed by defects within the enamel. These all can be detected with the direct vision by the clinician’s eyes or vision associated with a mirror and a standard dental light. In addition, by detecting a small dental defect a small, rounded-end dental explorer or probe can be used (Braga., 2010; Van Dorp., 1988; Ekstrand.,
This is done through the use of curved lenses and an electronic eye. This telescopes allows astronomers to be able to produce images of the celestial bodies so that further study can be completed. As time goes on, the X-ray images of stars from the telescopes give astronomers a lot of information such as the patterns and changes that may be occurring. X-rays are a form of radiation just like heat or light. They are invisible to the human eye but easily absorbed, however an X-ray telescope does not allow the X-rays to be absorbed.
The most usual use of x-rays is checking for broken bones, it can check for breast cancer. There are benefit and risks of X-ray examination. • No radiation is in a patient's body after an x-ray • Bone x-rays are the easiest way for a doctor to view bone injuries and fractures • X-ray equipment is not inexpensive and available in emergency rooms. • Convenient for both patients and doctors • X-ray imaging is easy; it is particularly useful in emergency treatment. Risks • There is always a chance of cancer from too much radiation.
The most common use of x-ray is the search for broken bones , but x-rays have more uses . X-rays can be used to detect pneumonia and other diseases . X-rays can also detect kidney stones . In other subjects , x-rays can be used for night vision . X-rays are a basic device in wealth guarantee and treatment .
Another study focused solely on the repeatability of colorimeters (Tung et al., 2002). This found that an intraoral dental colorimeter was both reliable and repeatable. In a comparative study between a colorimeter and the Shade Vision System, it was found that the colorimeter performed better, however the results were not conclusive (Cho et al., 2007).
Another application of paleontology is the use of fossils in the oil industry to determine the age of the rocks encountered in drill cores, which is vital to determining where the oil, if any, might be. Then, of course, there are the biological applications of paleontology. Much of the evidence used to refine the
New science and technologies are already making their way into all aspects of dental practice and have changed the traditional approaches, which require that students and practitioners receive the necessary knowledge.1 Dental laser is one of the most significant developments in modern dentistry. Lasers were introduced into the field of Dentistry in 1960s, with the hope of overcoming some of the drawbacks posed by the conventional methods of dental procedures.2 Conventional methods of cavity preparation with low and high speed handpieces involve noise, uncomfortable vibrations and stress for patients.3 These disadvantages have led to a search for new techniques as possible alternatives for dental hard and soft tissue removal.3 Different laser
The jaw is a curved structure similar to that of a horseshoe. However, the panoramic x-ray produces a flat image of the curved structure. It is typically set to provide Details of the bones and teeth. Where the film is placed inside of the mouth, the film for a panoramic x-ray is contained inside of the machine. (6) Conventional radiography Conventional radiographic examination of the human body dates back to the genesis of diagnostic radiology in 1895.