Determinación del biotipo facial a través del análisis de TATIS realizado en radiografías panorámicas y comparado con el análisis cefalométrico de Ricketts, índice de VERT en radiografías laterales

Aims To compare the facial biotype using Ricketts cephalometric analysis, Verts index, with Tatis analysis and to observe its degree of reliability. Materials and Methods The total population will be composed of 300 panoramic and lateral radiographs of patients from a radiology center in Quito. Finally, the sample comprises a total of 100 radiographs that have satisfied all the inclusion and exclusion criteria obtained in a nonprobabilistic manner by convenience, which have been divided into 50 panoramic Xrays and 50 lateral Xrays. Results When evaluating the present study objectives to compare the facial biotype using Ricketts cephalometry, Verts index, with Tatis analysis, using panoramic and lateral skull Xrays, respectively, we used the Kappa index to measure the concordance between the two analyses; The results showed a value of 0.070, which according to the Kappa index scale, indicates that it is less than 0.20, poor. Thus, this result being less than 0.20 indicates no coincidence between the Ricketts and Tatis analysis. As for the Chisquare result, the pvalue of 0.457 shows that it is higher than 0.05; thereby, there is no correlation either; the coincidence for these two analyses was barely 38 percent. Therefore, there is also no similarity in the results of the two analyses; this shows the low reliability of the Tatis analysis. Conclusions In the present study, we found a poor concordance between the two analyses; we observe only 38 percent agreement in the results. In this sense, these results decrease the reliability of the Tatis study. Previous studies have revealed that the Tatis analysis is more reliable for determining facial biotype; however, in this study, it has not coincided with H1; on the contrary, we observe the poor reliability as a diagnostic support method.

• Κύριος συγγραφέας: Parreño Hidalgo, Sandra Mariela (author)
• Μορφή: masterThesis
• Γλώσσα: spa
• Έκδοση: 2021
• Θέματα: ORTODONCIA; RADIOLOGÍA; ÍNDICE DE VERT; ANÁLISIS DE TATIS; RAYOS X
• Διαθέσιμο Online: http://dspace.udla.edu.ec/handle/33000/13594