Comparison of Obturation Quality After MTA Orthograde Filling with Various Obturation Techniques

Overview

Journal J Clin Med

Specialty General Medicine

Date 2021 Apr 30

PMID 33923426

Citations 6

Authors

Hae Jin An

Hyunjung Yoon

Hoi In Jung

Dong-Hoon Shin

Minju Song

Affiliations

Soon will be listed here.

Abstract

This study aimed to quantify and compare the obturation quality after mineral trioxide aggregate (MTA) orthograde fillings with three different obturation techniques. Thirty-three extracted human maxillary molars were collected. Distobuccal and palatal canals were prepared to an apical size of #40/06 with a Profile Ni-Ti system. All 66 canals were divided into two groups according to the material (EZ-seal or OrthoMTA) and then obturated using three different techniques: manual compaction using S-kondenser (group H), compactor activation (group C), or reverse rotary motion of Ni-Ti file (group R). The obturated roots were scanned using micro-computed tomography (micro-CT). The percentage of voids located in the apical 5 mm was measured separately, that is, closed, open, and total porosity. There was no relation between the filling material and obturation technique ( > 0.05). The percentage volume of open and total porosity was higher in EZ-seal than in OrthoMTA (open: = 0.002, total: = 0.001). Group H showed higher open and total porosity than groups C and R. Micro-CT analysis showed that the void volume after orthograde MTA fillings significantly decreased when the additional activation was accompanied by hand condensation. Obturation with a Ni-Ti file using reverse motion could be recommended as an MTA orthograde filling technique.

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