Analysis of the forces developed during obturation: warm vertical compaction

Area of Science:

• Dentistry
• Biomedical Engineering
• Materials Science

Background:

• Accurate root canal obturation is critical for long-term dental restoration success.
• Understanding the forces applied during obturation can reveal potential failure mechanisms.
• Current methods for measuring obturation forces are limited.

Purpose of the Study:

• To develop and validate a system for measuring and analyzing forces during endodontic obturation.
• To quantify the vertical and horizontal forces applied by endodontists and students during warm vertical compaction.
• To utilize force data for analyzing obturation techniques and identifying potential failures.

Main Methods:

• A custom system of force transducers integrated with acquisition software was developed.
• The system allowed for real-time monitoring and storage of obturation forces.
• Forces were analyzed during warm vertical compaction procedures performed by endodontists and students.

Main Results:

• Mean vertical forces for endodontists and students were 2.5 ± 0.4 kg and 1.9 ± 0.9 kg, respectively.
• Mean lateral forces for endodontists and students were 0.85 ± 0.2 kg and 1.4 ± 0.6 kg, respectively.
• Force graphs enabled the analysis of obturation methods and identification of two obturation failures.

Conclusions:

• The developed force measurement system provides valuable insights into obturation forces.
• Quantitative force data can aid in refining and improving endodontic obturation techniques.
• This technology has the potential to enhance clinical outcomes and reduce obturation failures.