Quality of obturation achieved by a non-gutta-percha-based root filling system in single-rooted canals

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

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Introduction: The present study examined the quality of obturation in root canals filled by an experimental non-gutta-percha-based (NGP) root filling system using warm vertical or cold lateral compaction. The quality of obturation was evaluated by comparing the volumetric percentage of gaps and voids identified from similar canals obturated with gutta-percha and an epoxy resin- based sealer using the same obturation techniques. Methods: Forty single-rooted premolars with ovalshaped canals were cleaned, shaped, and obturated with 1 of the 4 material/obturation technique combinations (n = 10). Filled canals were scanned with micro- computed tomographic imaging. Reconstructed images were analyzed for the volumetric percentage of gaps and voids at 3 canal levels (0-4, 4-8, and 8-12 mm from the working length). Roots were sectioned at the 4-mm, 8-mm, and 12-mm levels. Scanning electron microscopic images of negative replicas of root sections were examined to quantify the circumferential percentage of interfacial gaps and the area percentage of intracanal voids. Data were analyzed with parametric or nonparametric statistical methods. Results: A statistically significant difference was found for the volumetric percentage distribution of gaps and voids for ''obturation technique'' but not for ''material.'' Significantly higher percentages of gaps and voids were identified in canals obturated with the NGP system using cold lateral compaction. Examination of negative replicas ascribed this difference to a higher area percentage of interfacial gaps rather than more intracanal voids. Conclusions: Using warm vertical compaction, the NGP system fulfils the objective of 3-dimensional obturation of the canal space in a manner comparable with the results achieved with gutta-percha and a root canal sealer.

Original languageEnglish (US)
Pages (from-to)2003-2008
Number of pages6
JournalJournal of Endodontics
Volume40
Issue number12
DOIs
StatePublished - Jan 1 2014

Fingerprint

Gutta-Percha
Root Canal Obturation
Epoxy Resins
Dental Pulp Cavity
Bicuspid
Electrons
canals sealer

Keywords

  • Cold lateral compaction
  • Epoxy resin
  • Ethylene vinyl acetate
  • Gutta-percha
  • Methacrylate
  • Micro-computed tomographic imaging
  • Negative replica
  • Polypropylene
  • Scanning electron microscopy
  • Warm vertical compaction

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Quality of obturation achieved by a non-gutta-percha-based root filling system in single-rooted canals. / Selem, Lisa C.; Li, Guo Hua; Niu, Li Na; Bergeron, Brian Edward; Bortoluzzi, Eduardo A.; Chen, Ji Hua; Pashley, David Henry; Tay, Franklin Chi Meng.

In: Journal of Endodontics, Vol. 40, No. 12, 01.01.2014, p. 2003-2008.

Research output: Contribution to journalArticle

Selem, Lisa C. ; Li, Guo Hua ; Niu, Li Na ; Bergeron, Brian Edward ; Bortoluzzi, Eduardo A. ; Chen, Ji Hua ; Pashley, David Henry ; Tay, Franklin Chi Meng. / Quality of obturation achieved by a non-gutta-percha-based root filling system in single-rooted canals. In: Journal of Endodontics. 2014 ; Vol. 40, No. 12. pp. 2003-2008.
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abstract = "Introduction: The present study examined the quality of obturation in root canals filled by an experimental non-gutta-percha-based (NGP) root filling system using warm vertical or cold lateral compaction. The quality of obturation was evaluated by comparing the volumetric percentage of gaps and voids identified from similar canals obturated with gutta-percha and an epoxy resin- based sealer using the same obturation techniques. Methods: Forty single-rooted premolars with ovalshaped canals were cleaned, shaped, and obturated with 1 of the 4 material/obturation technique combinations (n = 10). Filled canals were scanned with micro- computed tomographic imaging. Reconstructed images were analyzed for the volumetric percentage of gaps and voids at 3 canal levels (0-4, 4-8, and 8-12 mm from the working length). Roots were sectioned at the 4-mm, 8-mm, and 12-mm levels. Scanning electron microscopic images of negative replicas of root sections were examined to quantify the circumferential percentage of interfacial gaps and the area percentage of intracanal voids. Data were analyzed with parametric or nonparametric statistical methods. Results: A statistically significant difference was found for the volumetric percentage distribution of gaps and voids for ''obturation technique'' but not for ''material.'' Significantly higher percentages of gaps and voids were identified in canals obturated with the NGP system using cold lateral compaction. Examination of negative replicas ascribed this difference to a higher area percentage of interfacial gaps rather than more intracanal voids. Conclusions: Using warm vertical compaction, the NGP system fulfils the objective of 3-dimensional obturation of the canal space in a manner comparable with the results achieved with gutta-percha and a root canal sealer.",
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T1 - Quality of obturation achieved by a non-gutta-percha-based root filling system in single-rooted canals

AU - Selem, Lisa C.

AU - Li, Guo Hua

AU - Niu, Li Na

AU - Bergeron, Brian Edward

AU - Bortoluzzi, Eduardo A.

AU - Chen, Ji Hua

AU - Pashley, David Henry

AU - Tay, Franklin Chi Meng

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N2 - Introduction: The present study examined the quality of obturation in root canals filled by an experimental non-gutta-percha-based (NGP) root filling system using warm vertical or cold lateral compaction. The quality of obturation was evaluated by comparing the volumetric percentage of gaps and voids identified from similar canals obturated with gutta-percha and an epoxy resin- based sealer using the same obturation techniques. Methods: Forty single-rooted premolars with ovalshaped canals were cleaned, shaped, and obturated with 1 of the 4 material/obturation technique combinations (n = 10). Filled canals were scanned with micro- computed tomographic imaging. Reconstructed images were analyzed for the volumetric percentage of gaps and voids at 3 canal levels (0-4, 4-8, and 8-12 mm from the working length). Roots were sectioned at the 4-mm, 8-mm, and 12-mm levels. Scanning electron microscopic images of negative replicas of root sections were examined to quantify the circumferential percentage of interfacial gaps and the area percentage of intracanal voids. Data were analyzed with parametric or nonparametric statistical methods. Results: A statistically significant difference was found for the volumetric percentage distribution of gaps and voids for ''obturation technique'' but not for ''material.'' Significantly higher percentages of gaps and voids were identified in canals obturated with the NGP system using cold lateral compaction. Examination of negative replicas ascribed this difference to a higher area percentage of interfacial gaps rather than more intracanal voids. Conclusions: Using warm vertical compaction, the NGP system fulfils the objective of 3-dimensional obturation of the canal space in a manner comparable with the results achieved with gutta-percha and a root canal sealer.

AB - Introduction: The present study examined the quality of obturation in root canals filled by an experimental non-gutta-percha-based (NGP) root filling system using warm vertical or cold lateral compaction. The quality of obturation was evaluated by comparing the volumetric percentage of gaps and voids identified from similar canals obturated with gutta-percha and an epoxy resin- based sealer using the same obturation techniques. Methods: Forty single-rooted premolars with ovalshaped canals were cleaned, shaped, and obturated with 1 of the 4 material/obturation technique combinations (n = 10). Filled canals were scanned with micro- computed tomographic imaging. Reconstructed images were analyzed for the volumetric percentage of gaps and voids at 3 canal levels (0-4, 4-8, and 8-12 mm from the working length). Roots were sectioned at the 4-mm, 8-mm, and 12-mm levels. Scanning electron microscopic images of negative replicas of root sections were examined to quantify the circumferential percentage of interfacial gaps and the area percentage of intracanal voids. Data were analyzed with parametric or nonparametric statistical methods. Results: A statistically significant difference was found for the volumetric percentage distribution of gaps and voids for ''obturation technique'' but not for ''material.'' Significantly higher percentages of gaps and voids were identified in canals obturated with the NGP system using cold lateral compaction. Examination of negative replicas ascribed this difference to a higher area percentage of interfacial gaps rather than more intracanal voids. Conclusions: Using warm vertical compaction, the NGP system fulfils the objective of 3-dimensional obturation of the canal space in a manner comparable with the results achieved with gutta-percha and a root canal sealer.

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KW - Scanning electron microscopy

KW - Warm vertical compaction

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