Filling of simulated lateral canals with gutta-percha or thermoplastic polymer by warm vertical compaction

Abstract

The aim of this study was to evaluate the ability of gutta-percha and a thermoplastic synthetic polymer (Resilon) to fill simulated lateral canals, using warm vertical compaction. Forty-five single-rooted human teeth were prepared using the rotary crown-down technique. Artificial lateral canals were made at 2, 5, and 8 mm from the working length (WL) in each root. The specimens were divided into three groups (n = 15), according to the filling material: Dentsply gutta-percha (GD), Odous gutta-percha (GO), and Resilon cones (RE). The root canals were obturated using warm vertical compaction, without endodontic sealer. The specimens were subjected to a tooth decalcification and clearing procedure. Filling of the lateral canals was analyzed by digital radiography and digital photographs, using the Image Tool software. The data were subjected to the Kruskal-Wallis and Dunn tests at 5% significance. RE had the best filling ability in all root thirds (p < 0.05), with similar results for GO in the coronal third. In the middle and apical thirds, GD and GO had similar results (p > 0.05). Resilon may be used as an alternative to gutta-percha as a solid core filling material for use with the warm vertical compaction technique. The study findings point to the potential benefit of the warm vertical compaction technique for filling lateral canals, and the study provides further information about using Resilon and gutta-percha as materials for the warm vertical compaction technique.

Farklı irrigasyon sistemlerinin yapay yan kanalların doldurulması üzerindeki etkisi

“…The filling capability of solid core endodontic materials such as gutta-percha and resilon were investigated with various studies and showed good adaptation to the root canal system including the irregularities and filling in simulated lateral canals when these materials get warmed 13 . However, if lateral condensation was used to fill the root canals, it was expected that the filling of the simulated lateral canals with root canal sealer.…”

“…Thus, creating straight and smooth canals can be accepted as a limitation of this study which does not simulate clinical conditions. In vitro studies also evaluated decalcified and cleared specimens by radiographic and visual analyses after filling of the root canals 13,23 . Almeida et al 23 observed that the radiographic analysis did not detect lateral canal fillings in 8% of the specimens although it could be visualized in the decalcified and cleared teeth.…”

“…Removal of the smear layer from the root canal walls during instrumentation allows access of endodontic irrigants and filling materials into the dentinal tubules, lateral canals and intracanal irregularities 11,12 . The filling capability of solid core endodontic materials such as gutta-percha and resilon were investigated with various studies and showed good adaptation to the root canal system including the irregularities and filling in simulated lateral canals when these materials get warmed 13 . However, if lateral condensation was used to fill the root canals, it was expected that the filling of the simulated lateral canals with root canal sealer.…”

Analysis of the Gray-Value Reproducibility and Noise of a Direct Digital Radiography System

“…The digital radiograph represents a great advance in oral maxillofacial radiology because it incorporates informatics technology in the capture, interpretation, and archiving of radiographic images. Importantly, it eliminates technical, chemical processing errors and obviates the need for the conventional film, thereby reducing the production of environmentally toxic residues [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] .…”

“…However, the results obtained in such applications depend on radiograph system quality and exposure time. The physical and clinical outcomes of various radiograph systems have been evaluated [7][8][9]11,13,[18][19][20] .…”