2. TANAKA AND JHONSTON ANALYSIS

Measure the MD width of lower 4 incisors determine the predicted value of upper and lower 3,4, 5 from their sum Sum of the lower incisors /2 +10.5 (per quadrant- lower arch) Sum of the lower incisors /2 +11 (per quadrant- upper arch) They believed that equations and size of the confidence intervals used by Moyer's Mixed Dentition Analysis have never been validated by any other studies. To predict the size of unerupted premolars and canines: 1/2 of Mesio-Distal width of four lower incisors + 10.5 = Estimated width of mandibular premolars + canine in one quadrant 1/2 of Mesio-Distal width of four lower incisors + 11.0 = Estimated width of maxillary premolars + canine in one quadrant This analysis takes 3 measurements into account:

1. The Mesiodistal widths of the mandibular incisors
2. Predicted size of permanent canines and premolars and
3. The space available after the incisors are correctly aligned.^[2]