Title

Micro-Computed Tomographic Evaluation Of Single-Cone Obturation With Three Sealers

Authors

Sahar Zare, University of New EnglandFollow
Ivy Shen, University of New EnglandFollow
Qiang Zhu, University of Connecticut School of Medicine and Dentistry
Chul Ahn, University of Texas Southwestern Medical Center at Dallas
Carolyn Primus, Augusta University Dental College
Takashi Komabayashi, Clinical Professor, University of New England College of Dental MedicineFollow

Document Type

Article

Publication Date

4-16-2021

Abstract

Objectives
This study used micro-computed tomography (µCT) to compare voids and interfaces in single-cone obturation among AH Plus, EndoSequence BC, and prototype surface pre-reacted glass ionomer (S-PRG) sealers and to determine the percentage of sealer contact at the dentin and gutta-percha (GP) interfaces. Materials and Methods
Fifteen single-rooted human teeth were shaped using ProTaper NEXT size X5 rotary files using 2.5% NaOCl irrigation. Roots were obturated with a single-cone ProTaper NEXT GP point X5 with AH Plus, EndoSequence BC, or prototype S-PRG sealer (n = 5/group). Results
The volumes of GP, sealer, and voids were measured in the region of 0–2, 2–4, 4–6, and 6–8 mm from the apex, using image analysis of sagittal µCT scans. GP volume percentages were: AH Plus (75.5%), EndoSequence BC (87.3%), and prototype S-PRG (94.4%). Sealer volume percentages were less: AH Plus (14.3%), EndoSequence BC (6.8%), and prototype S-PRG (4.6%). Void percentages were AH Plus (10.1%), EndoSequence BC (5.9%), and prototype S-PRG (1.0%). Dentin-sealer contact ratios of AH Plus, EndoSequence BC, and prototype S-PRG groups were 82.4% ± 6.8%, 71.6% ± 25.3%, and 70.2% ± 9.4%, respectively. GP-sealer contact ratios of AH Plus, EndoSequence BC, and prototype S-PRG groups were 65.6% ± 29.1%, 80.7% ± 25.8%, and 87.0% ± 8.6%, respectively. Conclusions

Prototype S-PRG sealer created a low-void obturation, similar to EndoSequence BC sealer with similar dentin-sealer contact (> 70%) and GP-sealer contact (> 80%). Prototype S-PRG sealer presented comparable filling quality to EndoSequence BC sealer.

Comments

Originally published:

Zare S, Shen I, Zhu Q, Ahn C, Primus C, Komabayashi T. Micro-computed tomographic evaluation of single-cone obturation with three sealers. Restor Dent Endod. 2021;46:e25. https://doi.org/10.5395/rde.2021.46.e25

Authors Zare and Shen were UNE Dental Medicine students at time of research.

Recommended Citation

Zare, Sahar; Shen, Ivy; Zhu, Qiang; Ahn, Chul; Primus, Carolyn; and Komabayashi, Takashi, "Micro-Computed Tomographic Evaluation Of Single-Cone Obturation With Three Sealers" (2021). Dental Medicine Faculty Publications. 15.
https://dune.une.edu/cdm_facpubs/15