![Materials | Free Full-Text | The Efficiency of the BTR-Pen System in Removing Different Types of Broken Instruments from Root Canals and Its Effect on the Fracture Resistance of Roots Materials | Free Full-Text | The Efficiency of the BTR-Pen System in Removing Different Types of Broken Instruments from Root Canals and Its Effect on the Fracture Resistance of Roots](https://www.mdpi.com/materials/materials-15-05816/article_deploy/html/images/materials-15-05816-sch001.png)
Materials | Free Full-Text | The Efficiency of the BTR-Pen System in Removing Different Types of Broken Instruments from Root Canals and Its Effect on the Fracture Resistance of Roots
د. سمحان العجمي on Twitter: "@AltaqiZaher Well done, i hope the mesial canal didnt get strip perf in the danger zone" / Twitter
![Materials | Free Full-Text | The Efficiency of the BTR-Pen System in Removing Different Types of Broken Instruments from Root Canals and Its Effect on the Fracture Resistance of Roots Materials | Free Full-Text | The Efficiency of the BTR-Pen System in Removing Different Types of Broken Instruments from Root Canals and Its Effect on the Fracture Resistance of Roots](https://www.mdpi.com/materials/materials-15-05816/article_deploy/html/images/materials-15-05816-g001.png)