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Residual root dentin thickness for three different rotary systems: A comparative cone beam computed tomography in
Matam Glore Suneetha1, Ahmed Abdul Moiz2, Hateem Sharief3
1Department of Conservative Dentistry and Endodontics, Government Area Hospital Golconda, Hyderabad, Telangana, India.
Summary
Hero shaper rotary files best preserve root dentin thickness during endodontic treatment. This study found Hero shaper instruments maintained significantly more residual root dentin thickness (RDT) compared to other tested instruments.
Area of Science:
- Endodontics
- Dental Materials Science
- Biomaterials
Background:
- Residual root dentin thickness (RDT) is crucial for the long-term success of endodontically treated teeth.
- Maintaining adequate RDT is essential to prevent root fractures and ensure tooth longevity.
Purpose of the Study:
- To compare the efficacy of different endodontic instruments in preserving RDT.
- To evaluate RDT using manual K-files, and rotary Mtwo, ProTaper Next, and Hero shaper instruments.
Main Methods:
- An in vitro study utilized 100 extracted human mandibular first premolars.
- Teeth were divided into five groups; RDT was measured at 3mm and 6mm from the apex using cone beam computed tomography (CBCT).
- Cleaning and shaping procedures were performed using specified instruments for each group.
Main Results:
- Rotary Hero shaper files resulted in the maximum preservation of RDT at both 3mm and 6mm from the apex.
- Manual K-files and ProTaper Next files showed significantly less RDT preservation.
- A statistically significant difference in RDT was observed between the Hero shaper group and all other groups.
Conclusions:
- Rotary Hero shaper files are superior in preserving residual root dentin thickness compared to manual K-files, rotary Mtwo, and ProTaper Next.
- The findings suggest Hero shaper instruments may contribute to enhanced longevity of endodontically treated teeth.
