Analysis of four gutta‐percha techniques used to fill mesial root canals of mandibular molars

Marciano, Marina Angélica; Ordinola‐Zapata, Ronald; Cunha, T. V. R. N.; Duarte, Marco Antônio Húngaro; Cavenago, Bruno Cavalini; Garcia, Roberto Brandão; Bramante, Clóvis Monteiro; Bernardineli, Norberti; Moraes, Ivaldo Gomes de

doi:10.1111/j.1365-2591.2010.01832.x

Cited by 65 publications

(74 citation statements)

References 33 publications

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“…The lack of calibration of the manufactured cone was observed in the "Single-cone" group when it was applied by warm vertical condensation while achieving an apical seal in the "Combined system" group. These results were confirmed in the literature (13)(14)(15). Moreover, the present study showed a greater number of filled lateral or accessory root canals in the "Combined system" group (Table 1).…”

Section: Discussionsupporting

confidence: 82%

Qualitative evaluation of two endodontic obturation techniques: tapered single-cone method versus warm vertical condensation and injection system An in vitro study

2012

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Forty two single-rooted teeth, preparedwith the Mtwo system, were divided into three groups based on the filling method: control, "Single-cone" (n = 20) (Mtwo gutta-percha single-cone tapered according to the diameter, length and conicity of the preparation) and "Combined system" (n = 20) (BeeFill 2in1). The parameters studied were apical leakage, gutta-percha adjustment, number of voids, presence/absence of sealer, root canal morphology, residual fragments, and filling of lateral/accessory canals. A dye penetration test was carried out (methylene blue). The teeth were embedded in resin, cut transversally and observed. The data were analyzed with non-parametric Mann-Whitney and Spearman tests. Comparative tests between the two groups showed that the "Combined system" was superior in terms of apical leakage (P < 0.01), gutta-percha adjustment (P < 0.05) and filling of lateral/accessory canals (P < 0.05). There were statistically significant correlations between master cone adjustment and root canal morphology (P < 0.01) in the "Single-cone" group. In the "Combined system" group, a relation was observed between the voids and root canal morphology (P < 0.05) and between voids and residual fragments (P < 0.05). The quality of obturation with warm gutta-percha was better than that of the tapered single-cone technique. Root canal morphology influences gutta-percha adjustment. Residual fragments on the root canal reduce sealing ability. (J Oral Sci 54, 99-104, 2012)

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Section: Discussionsupporting

confidence: 82%

Qualitative evaluation of two endodontic obturation techniques: tapered single-cone method versus warm vertical condensation and injection system An in vitro study

2012

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“…However, none of the tested techniques provided a void-free or gap-free root canal filling. This result is consistent with previous reports (21)(22)(23)(24)26). No significant difference was found between the CLC and TT filling techniques instrumented with the SAF or Revo-S file systems.…”

Section: Discussionsupporting

confidence: 83%

“…Numerous studies have shown the complexity of root canal anatomy. Failures are almost inevitable due to variations among canal sections, in-canal irregularities, and associated curvature diversity (10,20,26). Moreover, uninstrumented and unfilled root canal areas can cause complications because they obtain nutrients from the periradicular area or accessory canals (1,2).…”

Section: Discussionmentioning

confidence: 99%

3D Micro-CT Analysis of Void and Gap Formation in Curved Root Canals

Şımşek¹,

Keleş²,

Ahmetoğlu³

et al. 2017

Eur Endod J

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Objective: This study used microcomputed tomography (micro-CT) to compare the volumes of voids and gaps in curved root canals instrumented and filled using various techniques. Methods: Twenty extracted mandibular first molars with two curved mesial root canals were used. Root canals were instrumented using a self-adjusting file (SAF) or Revo-S file system. For standardization, mesiobuccal canals were instrumented with SAF and mesiolingual canals were instrumented with Revo-S in each root. The canals were divided into four experimental groups (n=10 in each). The canals were then filled via cold lateral compaction (CLC) or a thermoplasticized injectable technique (TT) using gutta-percha and AH Plus root canal sealer. The roots were scanned with a micro-CT, and the volumes of the voids and gaps were calculated using three-dimensional (3D) micro-CT images. Data were analyzed using unpaired t-and Kruskal-Wallis tests. A value of P < 0.05 was considered significant. Results: None of the tested techniques provided void-or gap-free fillings. Nevertheless, the SAF showed more gap formation than the Revo-S, and TT showed higher gap formation in all experimental groups. These differences, however, were not statistically significant (p>0.05). Conclusion:The SAF and Revo-S rotary file systems yielded comparable results. No statistically significant difference was found between the results of the various instrumentation and filling techniques.

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“…When compared with the single cone, System B and Thermafil techniques in the mesial root canal fillings of the mandibular molars, similar results were found between the lateral compaction and thermoplasticized techniques (14).…”

Section: Introductionsupporting

confidence: 59%

Influence of the Method in Root Canal Filling Using Active Lateral Compaction Techniques

et al. 2014

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The aim of this study was to evaluate, by stereomicroscopy and confocal laser microscopy, the influence of different lateral compaction methods for the obturation quality, as well as the time spent for the procedure. Thirty root canals of freshly extracted single-rooted human teeth were prepared with the ProTaper system up to F5 instrument and filled with gutta-percha and AH Plus sealer by the lateral compaction technique. The teeth were divided into 3 groups (n=10) in accordance with the method used for the lateral compaction, as follows: Manual, Mechanical and Ultrasonic. The sealers were stained with rhodamine B dye in a proportion of 0.1% per gram in weight to allow for the analysis under a confocal microscope. During the root filling procedure, the time spent was recorded with a stopwatch. The specimens were stored at 37 °C for 48 h, and then sectioned at 2, 4 and 6 mm from the apex. The percentage of gutta-percha, sealer and void areas were evaluated using a stereomicroscope and sealer penetration perimeter by confocal laser microscope. Statistical analyses were performed using the Kruskall-Wallis and Dunn tests (p<0.05). The mechanical method required a shorter time for the lateral compaction than the manual method (p<0.05). There were no significant differences (p>0.05) for the perimeter of the dentin with sealer penetration among all groups. The mechanical method showed a higher (p<0.05) percentage of gutta-percha and less sealer at the 4 mm section in comparison with the manual method. The ultrasonic group showed intermediate values. The void areas found in the root filling were similar (p>0.05) between the three methods. In conclusion, the fastest lateral compaction was achieved with the mechanical method, and all the methods showed void areas in the root filling.

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Analysis of four gutta‐percha techniques used to fill mesial root canals of mandibular molars

Abstract: Gutta-percha, sealer filled area and voids were dependent on the canal-filling technique. The presence of isthmuses may influence the quality of root filling.

Cited by 65 publications

References 33 publications

Qualitative evaluation of two endodontic obturation techniques: tapered single-cone method versus warm vertical condensation and injection system An in vitro study

Qualitative evaluation of two endodontic obturation techniques: tapered single-cone method versus warm vertical condensation and injection system An in vitro study

3D Micro-CT Analysis of Void and Gap Formation in Curved Root Canals

Influence of the Method in Root Canal Filling Using Active Lateral Compaction Techniques

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