 Welcome back to another session on Tentistry and more. So today we have a mixed Tentation Model Analysis that is Moyers Analysis. So this analysis is different from permanent tooth analysis that we had seen in last session that is Bolton's analysis that was completely permanent tooth model analysis. So this is a mixed Tentation analysis. So the difference is in mixed Tentation analysis as the name suggests it has both deciduous and permanent teeth. So in Moyers analysis what we are trying to find out is the prediction of space required from the available teeth. So from the available few teeth we are predicting the space discrepancy for the future upcoming teeth. So that is the concept. The basic argumentarium is dental cast, polyschedule and probability chart. It is very common but the main thing is probability chart. So we are going to predict the future teeth discrepancy or future available tooth requirement space requirement by a probability chart idea. So the step one what we are going to do we are going to measure the meso distal width of incisors. So most commonly mantibular. So meso distal dimension of mantibular arch that is 1, 2, 1, 2. So this meso distal width we are going to measure. So the lower incisors meso distal width we measured. So this is the lower incisor measure. So in cast we measure with bolly sketch the meso distal width of 4 incisors. The second step is measure the distance that is space from distal surface of lateral incisor to the meso side of permanent first molar. So hope you can see the number. This is permanent central incisor, permanent lateral incisor, deciduous canine, deciduous first molar, deciduous second molar, permanent first molar. So we measured the meso distal dimension of central and lateral incisor. The second step is measure the distance or the space from distal surface of lateral incisor to the meso aspect of permanent first molar. So this length is the second. So what we are going to do is next step is we have Moyers chart that is a prefix chart for particular measurement and we find out the meso distal width of canine and primolars. So this is the space where the future canine and primolars will be erupting because deciduous canine will be replaced by permanent canine and deciduous molars will be replaced by primolars. So we are going to predict the meso distal width of canine and primolars from the chart. And we can easily determine the arch length discrepancy because we are checking from the Moyers chart. So this is a mixed transition analysis and why the mantibular incisors have been chosen. So the mantibular incisors have been chosen because they erupted early in the mouth and easily measured accurately and they are directly in the midst of most space management problem. So these are the reasons why we are taking the mantibular incisors and maxilla incisors are not chosen because the variability in size and their correlation with other groups of teeth are of lower predicted value. So it is not maxilla, it is mantable. Mantable is checked because of its advantage over the maxilla because maxilla incisors having variability in size and their correlation with the teeth are of a lower predicted value. So that is why we are choosing mantibular incisors. So that is all about Moyers analysis. It is a very simple analysis in mixed transition period. Only thing we are measuring the incisors and predicting the canines and primolars space. So we have to measure it and we have to compare these values with a probability Moyers probability chart. So I will come up with the Ashley Howe analysis in my next video. Thank you.