Question 149 · LDEK · Model analysis
Indicate the true statement concerning Tonn’s Index:
- A. determines the correlation between the sum of upper permanent incisors' widths and the sum of lower molars’ widths.
- B. determines the proper widths of dental arches in relation to four upper incisors' widths.
- C. determines the correlation between the sum of mesiodistal widths of mandibular and maxillary teeth.
- D. determines the correlation between the sum of upper permanent incisors' widths and the sum of lower permanent incisors' widths.
- E. determines the correlation between the width of the upper dental arch and the upper facial width.
Hint
Tonn compared the incisors of the two jaws to check tooth-size harmony in the anterior segment.
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