| ORIGINAL ARTICLE |
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| Year : 2019 | Volume
: 22
| Issue : 6 | Page : 588-592 |
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Evaluation of remaining dentin thickness following use of three different rotary nickel–titanium retreatment files: A cone-beam computed tomography study
Nishita Rajeev Kulkarni, Sharad Basavraj Kamat, Santosh Irappa Hugar, Girish Shankar Nanjannawar, Pranav Devendra Patil
Department of Conservative Dentistry and Endodontics, Bharati Vidyapeeth Deemed University, Dental College and Hospital, Sangli, Maharashtra, India
Correspondence Address:
Dr. Nishita Rajeev Kulkarni
Department of Conservative Dentistry and Endodontics, Bharati Vidyapeeth Deemed University, Dental College and Hospital, Sangli - 416 414, Maharashtra
India
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/JCD.JCD_269_19
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Aim: The aim of the study is to measure the amount of remaining dentin thickness (RDT) following retreatment using three different rotary nickel–titanium (NiTi) systems.
Methodology: Mesiobuccal roots of 45 extracted maxillary first molars were prepared up to F2ProTaper File and obturated. After cone-beam computed tomography (CBCT) imaging, to evaluate the obturation, the samples were randomly assigned to three retreatment groups (n = 15). Group I was retreated with ProTaper Universal retreatment kit, Group II and III with MTWOand D-Race retreatment files, respectively. Postoperatively, all samples were subjected to CBCT imaging and evaluated with AutoCAD software (AutoDesk, Inc.) Mill Valley, California, U.S. to calculate the RDT. Data were statistically analyzed using one-way ANOVA and Tukey's post hoc tests, and the level of significance was set at P = 0.05.
Results: The amount of RDT was significantly more in D-Race and MTWOgroups when compared to ProTaper group.
Conclusion: D-Race and MTWOinstruments were associated with significantly more RDT than ProTaper.
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