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ePaper created 2017-03-17, 13:11:17 | version 1.38.0
diagnosis in orthodontics opinion | Fig. 7 Fig. 8 Fig. 9 Fig. 10 Fig. 11 Fig. 12 Coronal plane (Figs. 1 & 2) The coronal plane is located in the anterior part of the face, approximately parallel to the buccal surfaces of the anterior teeth. It divides the skull in two; anterior and posterior. Structures can be seen from back to front or front to back. Airways and paranasal sinuses Fig. 7: 3-D reconstruction panoramic view. Breathing is the foundation of life. CBCT scans offer a precise visual of the airways and surround- ing craniofacial structures that influence them, such as the mandible, palate, paranasal sinuses, fa- cial relations, adenoid tissue, tonsils and more. Fig. 8: 3-D sagittal segmentation. Fig. 9: 3-D reconstruction. Fig. 10: Sagittal segmentation. Fig. 11: Coronal segmentation. Fig. 12: Obstruction of the maxillary Sagittal plane (Figs. 3 & 4) sinuses. The sagittal plane divides the skull in two sym- metrical parts. Has a transversal orientation al- lowing examining two segments: right and left. This view of the airway completely changes the perception of the specialist and, most important, the life of the patients. Axial plane (Figs. 5 & 6) The axial plane is parallel to the floor and the oc- clusal plane. It divides the skull in two equal parts: superior and inferior, allowing the view of struc- tures from top to bottom and bottom to top. The overview of these three anatomical planes should give the specialist a complete exploration of the 3-D anatomy. The result is a deeper knowledge of the anatomy of the patient or, like in some cases, a number of findings that might result in the modi- fication of our treatment plan. Teeth and surrounding bone structures For obvious reasons, one of the main areas to check is the dental zone. Images that allow to check the teeth that are present and the ones in process of eruption, if that is the case, should be generated. As well as the characteristics of the adjacent bone and even take some numeric references. Soft tissues The evaluation of the soft tissues in a three-dimen- sional system and without magnification is ideal for the orthodontist because he/she, can now evaluate the patient fully with one exam, completely changing his perspective. Previously, with 2-D images we only had the possibility of making an unilateral evaluation of the skull and structures unless, of course, several X-rays were taken and complementary analysis in each of them. The other option was performing pho- tographic analysis to see the facial aesthetic from dif- ferent photographic angles and requiring a major number of shots that surely resulted difficult for the patient. The diagnostic evaluation with 3-D systems allows in one exam to evaluate the patient from the angles necessary as well as evaluating the soft- and hard-tissues resulting visually stunning and attrac- tive for the patient, being this extremely positive con- sidering that the patient has a better understanding of his/her aesthetic problems and how the specialist will proceed to eliminate them. ortho 1 2017 11