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Updated: Jun 3, 2026

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Published on: May 10, 2015
Incidence and effects of genetic factors on canine impaction in an isolated Jewish population
David D Chung1, Michael Weisberg, Murali Pagala
1Division of Orthodontics and Dentofacial Orthopedics, Maimonides Medical Center, Brooklyn, NY 11219, USA. dchung@maimonidesmed.org
Introduction:
The etiology of palatal canine impaction is multifactorial and includes a genetic contribution. The aim of this study was to find the incidence and effects of genetic factors on palatally impacted canines in a genetically isolated community of ultraorthodox Hassidic Jews of Ashkenazi decent.
Methods:
For this study, we retrospectively evaluated 1000 charts of Hassidic Jewish patients. Their distribution was 58% female and 42% male, with a mean age of 14 years.
Results:
From those patients, 49 (4.9%) were determined to have canine impaction. Of these 49, 69.4% had unilateral palatal impaction, 26.5% had bilateral palatal impaction, and 4.1% had unilateral labial impaction. The z-test of proportion showed that female patients have a greater percentage than males for unilateral palatal impaction (P <0.01) with left-side dominance (P <0.01).
Conclusions:
Our results imply that genetics plays a significant role in maxillary canine palatal impaction. A genetically isolated Hassidic Jewish community can be a useful group to study the effects of genetic factors on various dental anomalies, including palatally displaced canines.
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