Root fillings with a matched-taper single cone and two calcium silicate–based sealers: an analysis of voids using micro-computed tomography

Pedullà, Eugenio; Abiad, Roula; Conte, Gianluca Del; Rosa, Giusy Rita Maria La; Rapisarda, E.; Neelakantan, Prasanna

doi:10.1007/s00784-020-03313-5

Cited by 31 publications

(48 citation statements)

References 30 publications

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“…In this study, there were significantly more voids in the samples treated by the SC technique than with the CWC and LC methods in filling of isthmuses, with a percentage of 22.98 %. This result was consistent with that of several earlier studies [ 7 , 17 ]. This may be because, unlike the other two techniques, the SC technique lacks vertical and lateral pressure during the obturation procedure.…”

Section: Discussionsupporting

confidence: 94%

Presence of voids after three obturation techniques in band‐shaped isthmuses: a micro‐computed tomography study

Zhang¹,

Yuan²,

Jin³

et al. 2021

BMC Oral Health

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Background The objective of the present micro-computed tomography (micro-CT) study was to assess the presence of voids in band-shaped isthmuses obturated using three different filling techniques. Methods Twenty-four artificial molar teeth with a band-shaped isthmus were allocated to three groups (n = 8) for obturation, according to the filling technique: single-cone (SC), continuous wave of condensation (CWC) or lateral condensation (LC). Obturation was performed with gutta-percha (GP) cones and iRoot SP (Innovative Bioceramix, Vancouver, Canada). Post-filling micro-CT scanning was performed. The percentage of filling materials and void volumes were calculated in the isthmus areas and data were analyzed using one-way ANOVA and Tukey tests. Results The mean percentage of void volumes and corresponding filling percentages in the isthmus areas after obturation in the SC groups was 22.98 % ± 1.19 %, 77.02 % ± 1.19 %; in the CWC groups 10.46 % ± 2.28 %, 89.54 % ± 2.28 %; and in the LC groups was 13.14 % ± 1.85 %, 86.86 % ± 1.85 %, respectively. Conclusions In band-shaped isthmus area, the obturation quality of CWC was superior to SC and LC techniques.

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Section: Discussionsupporting

confidence: 94%

Presence of voids after three obturation techniques in band‐shaped isthmuses: a micro‐computed tomography study

Zhang¹,

Yuan²,

Jin³

et al. 2021

BMC Oral Health

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“…Clinically, this finding is relevant, as coronal leakage occurs in a corono-apical fashion. Previous studies have shown an increased number of voids at the coronal aspect for single-cone techniques [33,34]. Hence, an increased sealer penetration at this level, as promoted by activation, may prevent tubular reinfection and limit the reservoir potential of coronal dentine for secondary endodontic infections.…”

Section: Discussionmentioning

confidence: 98%

Sonic Activation Improves Bioceramic Sealer’s Penetration into the Tubular Dentin of Curved Root Canals: A Confocal Laser Scanning Microscopy Investigation

et al. 2021

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Background—The aim was to determine the influence of sonic activation in the tubular dentine penetration of bioceramic sealers. Methods—Forty mesiobuccal curved root canals of mandibular molars with an apical diameter smaller than #30 were prepared, divided into two groups, and filled with EndoSequence BC sealer, with or without sonic activation during its placement. Roots were sectioned at 3 mm, 6 mm, and 9 mm from the apex, producing a sample size of 120. The samples were evaluated using a confocal laser scanning microscope and comparing these images to the images obtained from an operatory microscope. The percentage of sealer penetration and maximum sealer penetration were evaluated. Statistical analysis was performed using the two-tailed Mann–Whitney U test, where statistical significance was set to p < 0.05. Results—Sonic activation showed higher values for the percentage of sealer penetration when compared at the 9 mm level (p = 0.03). A higher value of maximum sealer penetration was observed at all levels when the sealer was activated. Conclusions—The sonic activation of bioceramic cement resulted in higher sealer penetration into dentinal tubules.

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“…The controversy of the results may be related to root canal morphology, chemomechanical preparation or physical properties of the filling materials, to the lack of standardisation of in vitro test models, data processing and interpretation protocols. However, according to the recent research data, there is no doubt that no obturation technique can ensure complete and voids free sealing of the root canal system [ 43 , 44 ].…”

Section: Discussionmentioning

confidence: 99%

Microcomputed Tomographic Assessment of the Single Cone Root Canal Fillings Performed by Undergraduate Student, Postgraduate Student and Specialist Endodontist

Drukteinis

Bilvinaite

Tušas

et al. 2021

JCM

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The present study evaluated the obturation quality of root canals filled with BioRoot RCS sealer and single gutta-percha point by undergraduate student (US), postgraduate student (PS) and endodontist (ED). Twenty-one plastic models of upper premolars were enlarged with HyFlex EDM instruments to a size 40/0.04 taper and randomly divided into three groups (7 teeth/14 canals per group): US, PS and ED. After the obturation of root canals with BioRoot RCS and one HyFlex EDM size 40 gutta-percha point, plastic models were scanned using micro-computed tomography scanner (µCT) SkyScan 1272 at isotropic resolution of 10 µm. The porosity distribution was evaluated separately for the apical, middle and coronal thirds. The Kruskal–Wallis, Mann–Whitney, Friedman and Wilcoxon tests with the significance level set at 5% were used for data analysis. The µCT evaluation revealed open pores being the dominant type of porosity in all experimental groups and root canal thirds, with the highest percentage of pores in the apical third of root canal fillings. The quality and homogeneity of single cone root canals fillings remained similar between the groups in the apical and middle thirds (p > 0.05). Significant differences were observed only in the coronal third (p < 0.05).

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Root fillings with a matched-taper single cone and two calcium silicate–based sealers: an analysis of voids using micro-computed tomography

Cited by 31 publications

References 30 publications

Presence of voids after three obturation techniques in band‐shaped isthmuses: a micro‐computed tomography study

Presence of voids after three obturation techniques in band‐shaped isthmuses: a micro‐computed tomography study

Sonic Activation Improves Bioceramic Sealer’s Penetration into the Tubular Dentin of Curved Root Canals: A Confocal Laser Scanning Microscopy Investigation

Microcomputed Tomographic Assessment of the Single Cone Root Canal Fillings Performed by Undergraduate Student, Postgraduate Student and Specialist Endodontist

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