Micro-computed tomography assessment of different obturation techniques for filling lateral canals.

M Fragachan,J Frigola,E Barriuso,E Berastegui,Ml Ballester,M Pons

doi:10.4317/jced.54806

M Fragachan, J Frigola + Show 4 more

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https://doi.org/10.4317/jced.54806

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Abstract

BackgroundThe aim of this study was to evaluate obturation depth and volume by means of micro-CT when filling lateral canals.Material and MethodsThirty single-rooted teeth were used. After instrumentation, three artificial lateral canals were created on each mesial and distal surface (one on each third). The samples were then separated randomly into three groups according to the obturation technique used (n=10): lateral condensation (Group 1), Tagger’s hybrid technique (Group 2) and GuttaCore™ (Group 3). Samples were scanned and data was processed with Avizo software. Depth and volume of the infilling were measured in each lateral canal. Values were expressed as percentages and were analyzed using the Kruskal-Wallis test.ResultsMean depth showed statistically significant differences between Group 3 and Groups 1 (p=0.001) and 2 (p=0.003), whereas no significant difference was found between Groups 1 and 2 (p≈1). As for mean volume, significant differences were found between Group 3 and Groups 1 (p=0.01) and 2 (p=0.003) but no differences were found between Groups 1 and 2 (p=1.00).ConclusionsGuttaCore provided the best lateral canal sealing among the three techniques compared. Key words:Lateral canals, Micro-CT, obturation.

Highlights

According to several studies, the presence of lateral canals has been reported in 45 % of 74 teeth, 27.4 % of 1.140 teeth [1] and 75% of 493 [2] teeth
Even though Ricucci & Siqueira stated that the belief that lateral canals must be injected with filling material to enhance treatment outcome was not supported by literature review or by their histopathologic observations [2], an adequate filling of lateral canals has been correlated with apical periodontitis healing and successful root canal treatment [3,4,5]
Excess GuttaCore was managed in the same way as in Groups 1 and 2. -Micro-CT scanning To obtain high-resolution 3D densitometry maps of the inner structures of the teeth treated with the different substances in order to evaluate the infilling obtained, all samples were scanned by two double-blinded operators e703

Summary

Introduction

The presence of lateral canals has been reported in 45 % of 74 teeth, 27.4 % of 1.140 teeth [1] and 75% of 493 [2] teeth. Different filling techniques have been proposed for achieving three-dimensional obturation of the root canal system. Various experimental methods have been used to study the obturation quality of the root canal system. The purpose of this study was to evaluate, using micro-CT, the volume and depth of filling in artificial lateral canals comparing three obturation techniques: lateral condensation (LC), Tagger’s hybrid technique (TG), and GuttaCore (CG). The aim of this study was to evaluate obturation depth and volume by means of micro-CT when filling lateral canals. The samples were separated randomly into three groups according to the obturation technique used (n=10): lateral condensation (Group 1), Tagger’s hybrid technique (Group 2) and GuttaCoreTM (Group 3). Conclusions: GuttaCore provided the best lateral canal sealing among the three techniques compared

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