Statement of problem. Two techniques are currently used to produce dental porcelain paste, the one-step technique and incremental technique. In the ceramic industry, this mixture is obtained using controlled proportions of water and powder, but in dentistry, the best method has not been determined yet. Purpose. To evaluate the optical properties of a feldspathic dental ceramic applying two ceramic paste preparation. Material and methods. Were performed feldspathic porcelain discs ( 1.5 mm in diameter × 13 mm ) and divided in accordance with the method of preparation of ceramic slurry, incremental group (n=40) or one-step (n=40). All samples were performed a measurement with a spectrophotometer and were translucency parameter calculation Statistical analysis was performed using a Bayesian approach. Results. The incremental technique group showed statistically significant lower values in the translucency parameter (PT=1.65 to 3.41 ) than the values produced by the one-step technique (PT= 3.62 to 5.74 ). Conclusions. The samples produced by the incremental technique lower translucency showed that samples of the one-step technique.