Métodos predictvos del espacio mesiodistal de caninos y premolares

Introducton: The analysis most commonly used by orthodontsts to predict the ideal space of the canine and premolars is the Tanaka-Johnston Gold Standard. However, the use of this analysis in other populaton groups worldwide may be questonable. Objectve: To predict the ideal space for the erupton of the canine and premolars using the Tanaka-Johnston analysis and that of Ramos, et al. Material and Methods: A descriptve study was carried out using 110 pairs of study models with permanent dentton, collected during the period from 2018 to 2019. The mesiodistal widths were measured with a UBERMANN® digital vernier with an accuracy of ± 0.01 mm. Non-parametric statstcs were performed on the data obtained using the Kruskal-Wallis comparison test. Results: The Tanaka-Johnston analysis showed a diference between the predictve and real values of -0.50 mm (±1.68) with a statstcal diference of p=0.0001, and the Ramos et al. analysis was of -0.35 mm (±1.70) with a statstcal diference of p=0.0001. Conclusions: The ideal space for the erupton of the canine and premolars was underestmated with the Tanaka-Johnston analysis and the analysis validated by Ramos, et al. However, the Ramos, et al. analysis was closer to the actual mesiodistal diameters of the canine and premolars.