UG Model Analysis Tooth width measurement

The mesiodistal dimension of the teeth is measured. The teeth are measured mesiodistally at the maximum interproximal width or for ideally aligned teeth it would be at the contact point. Digital calipers or a Boley gauge is used for measurement. (Figs 1,2,3,4)

FIG 1 : Using dividers to measure width of tooth in a case of anterior crowding






FIG 2 : Using digital calipers for measuring tooth width

FIG 3 : Measuring tooth width in spacing

FIG 4: Measuring tooth width in crowding

The distal most tooth to be included for measurement in model analysis is the permanent 1^st molar. Permanent 2^nd and 3^rd molars are not included in model analysis.