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Asmaa S. El-Banna Medyan Al-Rousan Ghada Abu-Sheasha

Abstract

The study of palatal rugae has an important role in establishing
personal identity and facilitating population identification. The
current work analyzed the pattern of palatal rugae among an adult
Jordanian population and searched for any gender differences.
A total of 100 random dental casts were included in this study.
Number and pattern of palatal rugae regarding length, shape, direction,
and unification of rugae were identified. In addition, measurement
of maxillary intercanine widths (MIW) using digital Vernier
caliper was done.
Palatal rugae on the right side outnumbered those on the left
side. Males had more rugae in general than females. The commonest
rugae in both sexes were serpiginous. Primary and forward rugae
showed the highest frequency. A diverging form of unification was
more prevalent than a converging form. Apart from a total number
of convergent, divergent and secondary rugae, the total number of
other rugae differs significantly between males and females.
The study showed characteristics of palatal rugae in a Jordanian
population which could be gender specific, facilitating their identification.
It revealed the presence of sexual dimorphism, and sex
can be predicted using either logistic regression equation or CART
model.

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Section
Original Article