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Dynamic Navigation in Endodontics: Guided Access Cavity Preparation by Means of a Miniaturized Navigation System

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Scouting Ability of 4 Pathfinding Instruments in Moderately Curved Molar Canals.

Gustavo De-Deus¹, Felipe Gonçalves Belladonna¹, Erick Miranda Souza²

¹Department of Endodontics, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil.

Journal of Endodontics

|September 25, 2016

Summary

ScoutRace demonstrated superior efficiency in glide path preparation for NiTi rotary instruments, successfully navigating curved molar canals with the lowest fracture rate. ProDesign was least effective, while ProGlider had the highest instrument separation risk.

Keywords:

Glide path nickel-titanium rotary instruments pathfinding instruments rotary motion

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Area of Science:

Endodontics
Dental Materials Science

Background:

Glide path preparation is crucial for safe nickel-titanium (NiTi) rotary instrument use.
This study evaluates four NiTi pathfinding instruments for negotiating curved molar root canals.

Purpose of the Study:

To compare the effectiveness and fracture rates of four NiTi pathfinding instruments.
To assess instrument performance in preparing glide paths in curved molar canals.

Main Methods:

Four NiTi pathfinding instruments (ScoutRace, ProDesign, Mtwo, ProGlider) were tested on 240 curved molar canals.
Effectiveness was measured by the frequency of reaching full working length; fracture rate was recorded.
Statistical analysis used the Pearson's chi-square test.

Main Results:

ScoutRace achieved the highest rate of reaching full working length (68.3%), while ProDesign had the lowest (38.3%).
ProGlider showed the highest instrument separation rate (11.6%), followed by Mtwo (8.3%).
ScoutRace and ProDesign exhibited the lowest fracture rates (3.3% each).

Conclusions:

ScoutRace is an effective pathfinding instrument with a low fracture risk in curved molar canals.
ProDesign demonstrated the lowest efficiency, and ProGlider presented the highest risk of instrument separation.