DOI

https://doi.org/10.25772/YR1N-MV26

Defense Date

2024

Document Type

Thesis

Degree Name

Master of Science in Dentistry

Department

Dentistry

First Advisor

Garry Myers

Second Advisor

Caroline Carrico

Third Advisor

Awab Abdulmajeed

Fourth Advisor

Dmitry Pestov

Abstract

Objective: The research aims to compare the volume and percentage of pericervical dentin removed by Gates Glidden Drills, ProTaper SX, and a 20-06 Rotary File.

Methods: A total of 24 extracted two-rooted maxillary first premolars were divided into three groups (n=8) and were coronally flared using either Gates-Glidden Drills, ProTaper Gold SX, or a 20-06 Brasseler Endosequence CM Rotary File. Pre- and post-flaring micro-CT scans were obtained. The dentin volume of the buccal canals was measured from the chamber floor and 2 mm apically in the buccal canal only. Data were analyzed using the ANCOVA test to compare dentin removal efficacy. Tukey's Honestly Significant Difference (HSD) test was used for multiple instrument comparisons, with the significance level set at p<0.05.

Results:The study revealed a significant difference (p

Conclusion: The total cervical dentin removed during orifice shaping was significantly less with the 20-06 Ni-Ti rotary file system compared to Gates-Glidden drills and ProTaper SX orifice shapers. It is recommended to shape the orifices of narrow and grooved roots with a 20-06 Ni-Ti rotary file system.

Rights

© The Author

Is Part Of

VCU University Archives

Is Part Of

VCU Theses and Dissertations

Date of Submission

5-3-2024

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