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Following are the steps used in this analysis Measure widths of each of four permanent incisors of the lower jaw (mandibular central incisor and mandibular lateral …
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August 19, 2024
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Following are the steps used in this analysis
- Measure widths of each of four permanent incisors of the lower jaw (mandibular central incisor and mandibular lateral incisor).
- The total Mesio-Distal width of the incisors is calculated
- A prediction chart is used for space available in each arch, and the value that matches closest to the sum of incisors is picked.
- 1. Measures the space available in both arches for cuspids & bicuspids- from mesial of molar to mesial of molar. 2. Measure the mesiodistal width of lower mandibular incisors and sum it and put in probability chart. Lower incisors are used for both upper & lower 3,4,5 estimation. 3. Find the value in to horizontal column 4. Reading downward in appropriate vertical column, obtain the values for expected with of cuspids & bicuspids corresponding to the level of probability you wish to choose. 5. Ordinarily 75 % probability is used. 6. Space available –space required = amount of space in adequacy 7. Redo the same procedure for the lower arch.
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