1. Dental CT, which provides three-dimensional X images of all teeth.
From a three-dimensional perspective on the tissue situation to reflect, can find oral X-ray film cast angle can not be found, or more subtle lesions; its three-dimensional reconstruction effect can be on the bone tissue situation, jaw joints to accurately evaluate the situation, to assist the doctor for pre-surgery program design, as well as postoperative scientific evaluation (such as corrective jaw surgery).
2, dental film machine, can only provide about three teeth two-dimensional image.
3, panoramic machine provides two-dimensional images of all teeth.
4, Oral CT, also known as cone beam CT or CBCT, and panoramic film, also known as surface tomography, they are both X-rays.
5, oral CT is a three-dimensional CT, can be seen from the coronal, sagittal and normal horizontal position of the jawbone, teeth, maxillary sinus, inferior alveolar nerve tube, including condyles, joints to see very clearly, in the look at the apical shape of the teeth, the relationship between the maxillary sinus and the inferior alveolar nerve tube, to be far superior to the curved tomographic films and dental films.
6The curved tomogram is a flat X-ray image, from which the shape of each tooth and condyle in the mouth can be seen, as well as the position of the maxillary sinus and the inferior alveolar nerve canal can be seen.
7, but the two-dimensional can not see from the three-dimensional all-round angle of the root tip and the maxillary sinus, the lower alveolar nerve tube of the relationship, so and CBCT than there are still some defects, but the surface of the tomographic radiation is smaller than the application of a wider range.
Expanded information:
Oral CT in the buried teeth and multiple teeth localization diagnosis of the significance of: can be accurately displayed in the bone of the number of buried multiple teeth, the size and morphology; can be determined to show the space position of buried multiple teeth. It can show the spatial position of the buried supernumerary teeth (labiobuccal, lingual, height and inclination);
It can determine whether the position of the buried supernumerary teeth is a soft-tissue obstruction or a jawbone obstruction; it can show the distance or embedding relationship between the buried supernumerary teeth and the neighboring embryos and roots, etc.; and it can show whether resorption occurs in the neighboring roots and the degree of the resorption.
Baidu Encyclopedia - Oral CT
Baidu Encyclopedia - Oral panoramic machine