Related Experiment Video
Updated: Jun 13, 2025

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Dynamic Navigation in Endodontics: Guided Access Cavity Preparation by Means of a Miniaturized Navigation System
Published on: May 5, 2022
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A Comparative Evaluation of Real-Time Guided Dynamic Navigation and Conventional Techniques for Post Space
Sherifa Shervani1, Sihivahanan Dhanasekaran1, Vijay Venkatesh1
1Department of Conservative Dentistry and Endodontics, Sri Ramaswamy Memorial (SRM) Kattankulathur Dental College and Hospital, Chennai, IND.
Cureus
|September 16, 2024
Summary
The three-dimensional dynamic navigation system (DNS) significantly improves post space preparation precision and efficiency in endodontics. This advanced technique reduces canal deviation and volumetric loss while decreasing procedure time compared to conventional methods.
Area of Science:
- Endodontics
- Dental Technology
Background:
- The three-dimensional dynamic navigation system (DNS) offers enhanced precision and efficiency for post space preparation in endodontics.
- Traditional methods for post space preparation lack the accuracy and speed of DNS.
Purpose of the Study:
- To evaluate and contrast the efficacy and efficiency of DNS with conventional post space preparation techniques.
- Key parameters assessed include canal deviation, procedure duration, and volumetric loss.
Main Methods:
- Sixty extracted maxillary central incisors were divided into two groups: 3D DNS (n=30) and conventional techniques (n=30).
- Preoperative micro-CT and CBCT scans were performed. Post space preparation was guided by DNS in one group and performed conventionally in the other.
- Canal deviation, procedure time, and volumetric loss were measured using CBCT and micro-CT analyses.
Main Results:
- The DNS group demonstrated significantly less global coronal and apical deviation and angular deflection (p < 0.05).
- Volumetric loss of instrumented root canals was significantly reduced in the DNS group (p < 0.05).
- The DNS procedure was significantly faster, with a mean time reduction of approximately 10.57 minutes (p < 0.05).
Conclusions:
- Dynamic navigation significantly improves precision in endodontic post space preparation.
- DNS reduces canal deviation, minimizes volumetric loss, and shortens procedure time compared to conventional methods.

