Abstract
Background
The purpose of this article was to discuss the problems of two types of screw contact:
1) contact at screw insertion (during operation); and 2) contact during tooth movement
(during orthodontic treatment). Are there significant clinical consequences after
root contact with miniscrews?
Methods
Four clinical cases were presented. During screw insertion for mesiodistal movement
of the molar, two patients felt pain and two patients did not report any pain or other
symptoms. Cone beam computed tomography was obtained right away, root damage was confirmed,
and the screw was removed.
Results
Although there was root damage due to miniscrew contact during tooth movement, there
were no signs or symptoms reported. It is important to use cone beam computed tomography
to determine the risk, regardless of the presence or absence of clinically significant
damage.
Conclusions
In the four cases presented, miniscrews were removed immediately after root damage,
with no symptoms of pain, discoloration, devitalization, or ankylosis. The contact
between the screw and tooth root did not disturb the movement of the tooth or provoke
screw loosening.
Keywords
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Article info
Publication history
Published online: April 21, 2014
Accepted:
February 4,
2014
Received in revised form:
December 5,
2013
Received:
August 5,
2013
Identification
Copyright
© 2014 World Federation of Orthodontists. Published by Elsevier Inc. All rights reserved.
