Today, X-ray diagnostic methods are widely used not only in traumatology, but also in dentistry. It happens that this is the only way to detect changes in the tissues of the tooth or the oral cavity. Radiography provides an opportunity to clarify the clinical presentation, placement of a pathological process in the maxillofacial region. Due to X-ray diagnostics, it is much easier for a doctor to plan the treatment. There are different types of radiography used in dentistry: intra- and extraoral, panoramic, orthopantomography, computer tomography, contrast radiography, computer radiovisiography and some other techniques. In the dental office of “The Oxford Medical" International center diagnostics are performed at the highest professional level.
Close-focus contact radiography provides the experienced doctors of “The Oxford Medical" an opportunity to get an image of the bone tissue structure of both teeth and jaws, which is necessary to examine the state of the periapical tissues. In the course of this procedure, the film is introduced into the oral cavity and fixed to the gum from the lingual surface. The radiograph consists of two projections: the frontal and oblique. Those images obtained in the oblique projection are additional to the basic ones. They are necessary to detect the details not visible in the frontal projection.
Radiography provides an opportunity to explore the state of hard tissue; it can detect hidden cavities, the presence of impacted teeth, different perforations, fractures and deformations. It is possible to track the formation or resorption degree of the root during the replacement of deciduous teeth by the constants, and also determine the presence of foreign bodies like "needles and pins” in the root canals after treatment.
Radiograph allows to evaluate patency of the channel, the extent and accuracy of its filling, the state of tissue located near the tooth apex, the destruction degree of bone tissue in the partitions between the teeth, the quality of the installed artificial crowns.
Contact occlusal X-rays provide images of the alveolar process, which includes 5 - 4 teeth. In this case, the patients “bite” the film keeping it between the upper and lower dentitions. However, with this method the contours of the teeth and surrounding tissues appear less clear than for intraoral contact images. This method has been applied for the examination of those patients where the mouth opens less wide, for sensible patients with active gag reflex as well as for neoplasm detection in the submandibular and sublingual salivary glands and teeth. The study of the image is carried out in transmitted light using a special negatoscope device.
Reading of the intraoral radiographs includes:
- The assessment of the overall image quality, its contrast, sharpness, distortion of the projections: elongation, shortening of the teeth, visibility depth necessary for the study area.
- Determining of the visible object. Here it is necessary to determine the jaws, tooth groups, and each tooth individually.
- The analysis of the tooth shade. Often, it is the most important element for the dentist, because it gives information about:
- characteristics of the tooth cavity: the presence of residual sealing material, denticles;
- condition of roots: their number, shape, size and contours;
- characteristics of root canals: their width, direction in the root, filling, presence of foreign bodies;
- the assessment of the periodontal gap: its uniformity, width, the state of the compact platelet is defined here (if it is destroyed, thinned or thickened).
Orthopantomography is a new method used in "The Oxford Medical", allowing to see a larger image of upper and lower jaws together on one film. This allows us to compare the state of bone tissue in different parts of the masticatory apparatus.
With this method, we can visualize all stages of the teeth rudiments development in children including the smallest changes in the mineralization of hard tissues. It is also possible to identify chronic infectious of the odontogenic foci, pathologies of the temporomandibular joint, periodontal disease, changes in the paranasal sinuses. Among the advantages of this method are more informative results and smaller radiation dose. Disadvantages of this method are higher distortions in the frontal section; in one third of all cases the crowns shades of upper and lower premolars (smaller grinder teeth) are superimposed.
The Dentistry department of “The Oxford Medical" clinic has the latest equipment, which allows to conduct the diagnostics of oral cavity at the highest professional level and to identify possible diseases at an early stage.
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