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J Dent Res 49(6): 1517-1521, 1970
© 1970 International and American Associations for Dental Research
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Age Changes in Dental Arch Shape

C. L. B. LAVELLE 1

1 Department of Anatomy, Medical School, University of Birmingham, Birmingham 15, England

Age changes in dental arch shape were assessed by computing the area of the arch and the arch index:

[See Equation in pdf file]

Five-hundred and twenty sets of maxillary and mandibular casts were measured. They were taken from British patients within the age range of 3 to 15 years. The results showed that the dental arch areas increased maximally between 5 to 7 and 11 to 13 years. From examination of the indexes, however, the arches appeared to become broader with advancing age.

Submitted on January 12, 1970






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