Objectives.
The aim of this study was to demonstrate the imaging characteristics of gubernacular
canals (GCs) in impacted/unerupted permanent teeth and to determine whether these
characteristics differ as a result of the presence of eruption disturbances or pathologic
conditions associated with impacted/unerupted teeth.
Study Design.
GCs were retrospectively analyzed by using cone beam computed tomography in 250 patients
with 753 impacted/unerupted permanent teeth (105 males, 145 females; mean age, 21.09
± 14.45 years; range 6–70 years).
Results.
The rate of detection of GCs was significantly lower in cases with eruption disturbances
than in those without eruption disturbances. An inverse correlation was observed between
age and detection of GCs. Similarly, root resorption of adjacent teeth and resorption
of impacted/unerupted teeth were associated with lower rates of detection of GCs.
However, no association was found for widening of the follicular space. Regression
analysis determined disturbed eruption pattern as the most important factor for the
absence of GCs.
Conclusions.
The absence of GC may indicate a disturbed eruption pattern of the tooth and may increase
the risk of complications related to impaction resulting in a tooth that is more likely
to remain unerupted.
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Article info
Publication history
Published online: October 26, 2018
Accepted:
September 6,
2018
Received in revised form:
August 19,
2018
Received:
March 1,
2018
Footnotes
This work was supported by the Scientific Research Projects Coordination Unit, Hacettepe University, Ankara, Turkey [TBI-2017-13456].
Identification
Copyright
© 2018 Elsevier Inc. All rights reserved.
