KMID : 1034420210460020025
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Restorative Dentistry & Endodontics 2021 Volume.46 No. 2 p.25 ~ p.25
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Micro-computed tomographic evaluation of single-cone obturation with three sealers
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Zare Sahar
Shen Ivy Zhu Qiang Ahn Chul Primus Carolyn Komabayashi Takashi
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Abstract
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Objectives: This study used micro-computed tomography (¥ìCT) 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 ¥ìCT 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% ¡¾ 6.8%, 71.6% ¡¾ 25.3%, and 70.2% ¡¾ 9.4%, respectively. GP-sealer contact ratios of AH Plus, EndoSequence BC, and prototype S-PRG groups were 65.6% ¡¾ 29.1%, 80.7% ¡¾ 25.8%, and 87.0% ¡¾ 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.
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KEYWORD
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Endodontic sealer, X-ray Micro-CT, Tricalcium silicate, Epoxy resin, S-PRG prototype sealer
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FullTexts / Linksout information
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Listed journal information
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