Quality of obturation achieved by an endodontic core-carrier system with crosslinked gutta-percha carrier in single-rooted canals

Guo Hua Li, Li Na Niu, Lisa C. Selem, Ashraf A. Eid, Brian Edward Bergeron, Ji Hua Chen, David Henry Pashley, Franklin Chi Meng Tay

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Objectives The present study examined the quality of obturation in root canals obturated by GuttaCore, a gutta-percha-based core-carrier system with a cross-linked thermoset gutta-percha carrier, by comparing the incidence of gaps and voids identified from similar canals obturated by cold lateral compaction or warm vertical compaction. Methods Thirty single-rooted premolars with oval-shaped canals were shaped and cleaned, and obturated with one of the three obturation techniques (N = 10): GuttaCore, warm vertical compaction or cold lateral compaction. Filled canals were scanned with micro-computed tomography (micro-CT); reconstructed images were analysed for the volumetric percentage of gaps and voids at three canal levels (0-4 mm, 4-8 mm and 8-12 mm from working length). The roots were subsequently sectioned at the 4-mm, 8-mm and 12-mm levels for analyses of the percentage of interfacial gaps, and area percentage of interfacial and intracanal voids, using scanning electron microscopy (SEM) to examine negative replicas of root sections. Data were analysed with parametric or non-parametric statistical methods at α = 0.05. Results Both micro-CT and SEM data indicated that canals obturated with GuttaCore core-carriers had the lowest incidence of interfacial gaps and voids, although the results were not significantly different from canals obturated by warm vertical compaction. Both the GuttaCore and the warm vertical compaction groups, in turn, had significantly lower incidences of gaps and voids than the cold lateral compaction group. Conclusions Because of the similarity in obturation quality between GuttaCore and warm vertical compaction, practitioners may find the GuttaCore core-carrier technique a valuable alternative for obturation of oval-shaped canals. Clinical Significance The quality of obturation achieved by GuttaCore in single-rooted canals is not significantly different from that achieved by warm vertical compaction.

Original languageEnglish (US)
Pages (from-to)1124-1134
Number of pages11
JournalJournal of Dentistry
Volume42
Issue number9
DOIs
StatePublished - Jan 1 2014

Fingerprint

Root Canal Obturation
Gutta-Percha
Electron Scanning Microscopy
Incidence
Tomography
Bicuspid

Keywords

  • Cold lateral compaction
  • Core-carrier
  • Cross-linked thermoset gutta-percha carrier
  • Micro-computed tomography
  • Negative replica
  • Scanning electron microscopy
  • Warm vertical compaction

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Quality of obturation achieved by an endodontic core-carrier system with crosslinked gutta-percha carrier in single-rooted canals. / Li, Guo Hua; Niu, Li Na; Selem, Lisa C.; Eid, Ashraf A.; Bergeron, Brian Edward; Chen, Ji Hua; Pashley, David Henry; Tay, Franklin Chi Meng.

In: Journal of Dentistry, Vol. 42, No. 9, 01.01.2014, p. 1124-1134.

Research output: Contribution to journalArticle

Li, Guo Hua ; Niu, Li Na ; Selem, Lisa C. ; Eid, Ashraf A. ; Bergeron, Brian Edward ; Chen, Ji Hua ; Pashley, David Henry ; Tay, Franklin Chi Meng. / Quality of obturation achieved by an endodontic core-carrier system with crosslinked gutta-percha carrier in single-rooted canals. In: Journal of Dentistry. 2014 ; Vol. 42, No. 9. pp. 1124-1134.
@article{5d85e80a23254e52aba7da68a6f1551d,
title = "Quality of obturation achieved by an endodontic core-carrier system with crosslinked gutta-percha carrier in single-rooted canals",
abstract = "Objectives The present study examined the quality of obturation in root canals obturated by GuttaCore, a gutta-percha-based core-carrier system with a cross-linked thermoset gutta-percha carrier, by comparing the incidence of gaps and voids identified from similar canals obturated by cold lateral compaction or warm vertical compaction. Methods Thirty single-rooted premolars with oval-shaped canals were shaped and cleaned, and obturated with one of the three obturation techniques (N = 10): GuttaCore, warm vertical compaction or cold lateral compaction. Filled canals were scanned with micro-computed tomography (micro-CT); reconstructed images were analysed for the volumetric percentage of gaps and voids at three canal levels (0-4 mm, 4-8 mm and 8-12 mm from working length). The roots were subsequently sectioned at the 4-mm, 8-mm and 12-mm levels for analyses of the percentage of interfacial gaps, and area percentage of interfacial and intracanal voids, using scanning electron microscopy (SEM) to examine negative replicas of root sections. Data were analysed with parametric or non-parametric statistical methods at α = 0.05. Results Both micro-CT and SEM data indicated that canals obturated with GuttaCore core-carriers had the lowest incidence of interfacial gaps and voids, although the results were not significantly different from canals obturated by warm vertical compaction. Both the GuttaCore and the warm vertical compaction groups, in turn, had significantly lower incidences of gaps and voids than the cold lateral compaction group. Conclusions Because of the similarity in obturation quality between GuttaCore and warm vertical compaction, practitioners may find the GuttaCore core-carrier technique a valuable alternative for obturation of oval-shaped canals. Clinical Significance The quality of obturation achieved by GuttaCore in single-rooted canals is not significantly different from that achieved by warm vertical compaction.",
keywords = "Cold lateral compaction, Core-carrier, Cross-linked thermoset gutta-percha carrier, Micro-computed tomography, Negative replica, Scanning electron microscopy, Warm vertical compaction",
author = "Li, {Guo Hua} and Niu, {Li Na} and Selem, {Lisa C.} and Eid, {Ashraf A.} and Bergeron, {Brian Edward} and Chen, {Ji Hua} and Pashley, {David Henry} and Tay, {Franklin Chi Meng}",
year = "2014",
month = "1",
day = "1",
doi = "10.1016/j.jdent.2014.04.008",
language = "English (US)",
volume = "42",
pages = "1124--1134",
journal = "Journal of Dentistry",
issn = "0300-5712",
publisher = "Elsevier BV",
number = "9",

}

TY - JOUR

T1 - Quality of obturation achieved by an endodontic core-carrier system with crosslinked gutta-percha carrier in single-rooted canals

AU - Li, Guo Hua

AU - Niu, Li Na

AU - Selem, Lisa C.

AU - Eid, Ashraf A.

AU - Bergeron, Brian Edward

AU - Chen, Ji Hua

AU - Pashley, David Henry

AU - Tay, Franklin Chi Meng

PY - 2014/1/1

Y1 - 2014/1/1

N2 - Objectives The present study examined the quality of obturation in root canals obturated by GuttaCore, a gutta-percha-based core-carrier system with a cross-linked thermoset gutta-percha carrier, by comparing the incidence of gaps and voids identified from similar canals obturated by cold lateral compaction or warm vertical compaction. Methods Thirty single-rooted premolars with oval-shaped canals were shaped and cleaned, and obturated with one of the three obturation techniques (N = 10): GuttaCore, warm vertical compaction or cold lateral compaction. Filled canals were scanned with micro-computed tomography (micro-CT); reconstructed images were analysed for the volumetric percentage of gaps and voids at three canal levels (0-4 mm, 4-8 mm and 8-12 mm from working length). The roots were subsequently sectioned at the 4-mm, 8-mm and 12-mm levels for analyses of the percentage of interfacial gaps, and area percentage of interfacial and intracanal voids, using scanning electron microscopy (SEM) to examine negative replicas of root sections. Data were analysed with parametric or non-parametric statistical methods at α = 0.05. Results Both micro-CT and SEM data indicated that canals obturated with GuttaCore core-carriers had the lowest incidence of interfacial gaps and voids, although the results were not significantly different from canals obturated by warm vertical compaction. Both the GuttaCore and the warm vertical compaction groups, in turn, had significantly lower incidences of gaps and voids than the cold lateral compaction group. Conclusions Because of the similarity in obturation quality between GuttaCore and warm vertical compaction, practitioners may find the GuttaCore core-carrier technique a valuable alternative for obturation of oval-shaped canals. Clinical Significance The quality of obturation achieved by GuttaCore in single-rooted canals is not significantly different from that achieved by warm vertical compaction.

AB - Objectives The present study examined the quality of obturation in root canals obturated by GuttaCore, a gutta-percha-based core-carrier system with a cross-linked thermoset gutta-percha carrier, by comparing the incidence of gaps and voids identified from similar canals obturated by cold lateral compaction or warm vertical compaction. Methods Thirty single-rooted premolars with oval-shaped canals were shaped and cleaned, and obturated with one of the three obturation techniques (N = 10): GuttaCore, warm vertical compaction or cold lateral compaction. Filled canals were scanned with micro-computed tomography (micro-CT); reconstructed images were analysed for the volumetric percentage of gaps and voids at three canal levels (0-4 mm, 4-8 mm and 8-12 mm from working length). The roots were subsequently sectioned at the 4-mm, 8-mm and 12-mm levels for analyses of the percentage of interfacial gaps, and area percentage of interfacial and intracanal voids, using scanning electron microscopy (SEM) to examine negative replicas of root sections. Data were analysed with parametric or non-parametric statistical methods at α = 0.05. Results Both micro-CT and SEM data indicated that canals obturated with GuttaCore core-carriers had the lowest incidence of interfacial gaps and voids, although the results were not significantly different from canals obturated by warm vertical compaction. Both the GuttaCore and the warm vertical compaction groups, in turn, had significantly lower incidences of gaps and voids than the cold lateral compaction group. Conclusions Because of the similarity in obturation quality between GuttaCore and warm vertical compaction, practitioners may find the GuttaCore core-carrier technique a valuable alternative for obturation of oval-shaped canals. Clinical Significance The quality of obturation achieved by GuttaCore in single-rooted canals is not significantly different from that achieved by warm vertical compaction.

KW - Cold lateral compaction

KW - Core-carrier

KW - Cross-linked thermoset gutta-percha carrier

KW - Micro-computed tomography

KW - Negative replica

KW - Scanning electron microscopy

KW - Warm vertical compaction

UR - http://www.scopus.com/inward/record.url?scp=84906236971&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84906236971&partnerID=8YFLogxK

U2 - 10.1016/j.jdent.2014.04.008

DO - 10.1016/j.jdent.2014.04.008

M3 - Article

C2 - 24769108

AN - SCOPUS:84906236971

VL - 42

SP - 1124

EP - 1134

JO - Journal of Dentistry

JF - Journal of Dentistry

SN - 0300-5712

IS - 9

ER -