Abstract
Introduction
Dynamic navigation systems are used in dental implantology to optimize the accuracy
of dental implant placement.
Methods
A 30-year-old man was seen at the endodontic clinic of the Universidad Autónoma de
Yucatán for pain in the left maxillary lateral incisor. A previously treated tooth
with symptomatic apical periodontitis was diagnosed. The patient accepted treatment,
and after signing an informed consent form, minimally invasive coronal access was
performed through a zirconia crown. Then a post removal was performed with an ultrasonic
tip to 2 mm before the apical gutta-percha limit, and the removal of material was
completed manually with a K-file.
Results
This case report demonstrates the use of dynamic navigation to remove a post from
under a zirconia crown for the retreatment of a failing root canal procedure. The
removal of fiber posts from endodontically treated teeth can present a unique challenge
for clinicians. Numerous techniques and instrument kits are recommended for the removal
of fiber posts, but the risk of excessive root structure damage is a major concern
because the ability to differentiate the color difference between peripheral dentin
and a bonded fiber post can complicate the accuracy of the removal.
Conclusions
The dynamic navigation system enabled minimally invasive removal of the fiber post
with a high degree of accuracy, thus ensuring that there was no unnecessary removal
of root structure. Dynamic navigation using real-time monitoring could reduce the
attendant risk of iatrogenic errors in complex treatment cases.
Key Words
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Article info
Publication history
Published online: March 18, 2021
Identification
Copyright
© 2021 American Association of Endodontists.
