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Related Experiment Video

Updated: Sep 27, 2025

Guided Endodontics: Three-Dimensional Planning and Template-Aided Preparation of Endodontic Access Cavities
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Guided Endodontics: Three-Dimensional Planning and Template-Aided Preparation of Endodontic Access Cavities

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Guided Access Cavity Preparation Using Cost-Effective 3D Printers.

George K Koch1, Hisham Gharib2, Peixi Liao2

  • 1Boston University Henry M. Goldman School of Dental Medicine, Boston, Massachusetts; Department of Endodontics, Boston University Henry M. Goldman School of Dental Medicine, Boston, Massachusetts.

Journal of Endodontics
|April 14, 2022
PubMed
Summary
This summary is machine-generated.

Desktop 3D printers can fabricate accurate stents for guided endodontics. One printer model demonstrated superior accuracy and precision in this in vitro study, suggesting cost-effective options for clinical use.

Keywords:
Access cavityCBCTaccuracyguided endodonticsprinted templates

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Area of Science:

  • Dental Technology
  • 3D Printing Applications
  • Endodontics

Background:

  • Guided endodontics offers improved access to root canals.
  • Desktop 3D printers present a potentially cost-effective method for fabricating surgical guides.

Purpose of the Study:

  • To evaluate the accuracy and precision of desktop 3D printers in fabricating stents for guided endodontics.
  • To compare the performance of four different 3D printers in creating endodontic access guides.

Main Methods:

  • A stent for guided endodontic access was designed using planning software.
  • Four identical stents were fabricated using different desktop 3D printers.
  • Each stent was used to access an artificial endodontic canal 10 times by the same operator.
  • Accessed teeth were scanned, and deviation from the planned access was calculated using inspection software.

Main Results:

  • Mean deviations between planned and actual bur positions ranged from 0.31 to 0.68 mm.
  • Statistically significant differences in accuracy were observed among the four 3D printers.
  • One printer model (Group Form3) demonstrated the highest accuracy and precision for both coronal and apical deviations.

Conclusions:

  • All tested 3D printers produced guides with high accuracy for endodontic access.
  • Cost-effective desktop 3D printers show promise for guided endodontic procedures.
  • Further clinical research is warranted, especially for cases involving pulp canal obliteration.