Highlights
- •Description of a novel treatment approach for teeth with pulp canal calcification.
- •Microguided endodontics is accurate and operator independent.
- •Mean treatment time, including planning, was approximately 10 minutes per tooth.
Abstract
Introduction
The aim of this study was to assess the accuracy of guided endodontics in mandibular
anterior teeth by using miniaturized instruments. This technique is designed to treat
teeth with pulp canal calcifications and narrow roots by using a printed template
that guides a bur to the calcified root canal.
Methods
Sixty sound mandibular anterior teeth were used in 10 mandibular models. Preoperative
surface and cone-beam computed tomography scans were matched by using the coDiagnostix
software. Virtual planning was performed for the access cavities, and templates were
used for guidance. The templates were produced by a three-dimensional printer. Two
operators performed the access cavities. A postoperative cone-beam computed tomography
scan was superimposed on the virtual plan, and the deviation was measured in 3 dimensions
and angles. Descriptive statistical analyses were performed, and 95% confidence intervals
were calculated for both operators and each measured aspect.
Results
The deviations between the planned- and prepared-access cavities were low, with means
ranging from 0.12 to 0.13 mm for different aspects at the base of the bur and 0.12
to 0.34 mm at the tip of the bur. The mean of angle deviation was 1.59°. A considerable
overlap of the 95% confidence intervals indicated no significant difference between
the operators. The mean treatment time, including planning and preparation, was approximately
10 minutes per tooth.
Conclusions
Microguided endodontics provides an accurate, fast, and operator-independent technique
for the preparation of apically extended access cavities in teeth with narrow roots
such as mandibular incisors.
Key Words
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Article info
Publication history
Published online: March 12, 2017
Identification
Copyright
© 2017 American Association of Endodontists.
