Effectiveness in cleaning oval-shaped root canals using Anatomic Endodontic Technology, ProFile and manual...

Area of Science:

• Endodontics
• Dental Materials Science
• Scanning Electron Microscopy

Background:

• Root canal cleanliness is crucial for endodontic treatment success.
• Oval-shaped canals present unique challenges for instrumentation and debris removal.
• Evaluating new automated instrumentation techniques is essential for improving clinical outcomes.

Purpose of the Study:

• To compare the in vitro effectiveness of Anatomic Endodontic Technology (AET) and ProFile systems against manual instrumentation in cleaning oval-shaped root canals.
• To assess the removal of debris and smear layer from root canal walls at different apical levels.

Main Methods:

• Oval-shaped premolar root canals were instrumented using AET, ProFile, or K-Flexofiles.
• Roots were longitudinally sectioned and examined under a scanning electron microscope (SEM) at x200 and x400 magnification.
• Debris and smear layer presence were scored at 1, 5, and 10 mm from the working length.

Main Results:

• AET demonstrated significantly less debris and smear layer compared to ProFile and manual instrumentation.
• Smear layer scores decreased significantly at 5 and 10 mm compared to 1 mm across all groups.
• AET showed significant debris reduction at 5 and 10 mm, unlike ProFile and manual methods.

Conclusions:

• AET offers improved root canal cleanliness in oval canals compared to other tested methods.
• Complete removal of debris and smear layer was not achieved by any instrumentation technique.
• Further research into optimizing instrumentation protocols for complex canal anatomies is warranted.