A comparison of 5 gutta-percha obturation techniques to replicate canal defects

Kulild, James C.; Lee, Charles; Dryden, James; Collins, Jake; Feil, PH

doi:10.1016/j.tripleo.2006.06.007

Cited by 12 publications

(8 citation statements)

References 10 publications

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“…Few data are available on whether any particular GP technique is superior for filling canals with resorptive defects (2). In previous studies, radiographic methods (8), image analysis programs (2) and split-tooth models (5,6) have been used to evaluate obturation quality in filled resorptive areas. However, these research methods allow only two-dimensional analyses and cannot properly measure the properties of the root canal filling in the resorption cavity.…”

Section: Discussionmentioning

confidence: 99%

“…Many techniques have been studied ex vivo to address this deficit in quality when filling internal defects . These studies have evaluated voids, obturation mass and the amount of gutta‐percha (GP) or sealer in the defects, and have shown that significant differences exist between obturation techniques with respect to their ability to fill defects .…”

Section: Introductionmentioning

confidence: 99%

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Quality of different gutta-percha techniques when filling experimental internal resorptive cavities: A micro-computed tomography study

2013

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The purpose of this ex vivo study was to determine the quality of root fillings in experimental internal resorptive cavities filled using cold lateral condensation (CLC), vertical condensation and Thermafil techniques. Forty-five extracted maxillary canine teeth were selected. After root canal instrumentation, the roots were sectioned horizontally and experimental internal resorption cavities were prepared. The root sections were re-approximated with a luting agent and randomly assigned to three groups (n = 15) to be filled using CLC, vertical condensation and Thermafil, respectively. Assessment of obturation quality in the internal resorptive cavity was performed using a desktop X-ray micro focus computed tomography scanner, and the percentage of gutta-percha (GP), sealer and voiding was calculated for each specimen. Data were statistically analysed using non-parametric tests, with P < 0.05 denoting a statistically significant difference. Vertical condensation filled 96.25 ± 8.31% of the total artificial cavity, and was superior to CLC (63.20 ± 16.87%) and Thermafil (59.26 ± 18.47%). The mean percentage of voids was 3.75 ± 8.31% in the vertical condensation group, 37.09 ± 17.13% in the CLC group and 41.06 ± 18.60% in the Thermafil group. We conclude that obturation of experimental resorption cavities is significantly better when using vertical condensation than when using other GP-based techniques.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Quality of different gutta-percha techniques when filling experimental internal resorptive cavities: A micro-computed tomography study

2013

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“…In previous studies, radiographic and micro-computed tomographic methods,[812] image analysis programs,[2] or split-tooth models[910] were used to evaluate the obturation quality of the filled resorptive areas. These studies revealed significant differences among the filling techniques with respect to their capacity to obturate resorptive defects.…”

Section: Discussionmentioning

confidence: 99%

“…[2891011] Voids, obturation masses, and different amounts of gutta-percha or sealer in the defect areas have been evaluated in these studies, which showed differences among obturation techniques with respect to their capacity to fill defects. [28910] Such differences between obturation techniques may alter the quality of the filled apical canals beyond defects, as well as the quality of the obturated resorptive defects. Obturation of the apical canal could be a challenge, while differences in the sealing ability of various filling techniques might appear with the presence of internal resorptive cavities.…”

Section: Introductionmentioning

confidence: 99%

Comparative analysis of three different filling techniques and the effects of experimental internal resorptive cavities on apical microleakage

et al. 2014

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Objectives:The aim of this study was to evaluate the sealing abilities of three different gutta-percha techniques in experimentally defective roots (EDR) and non-defective roots (NR).Materials and Methods:Sixty canine teeth were divided into six groups of ten; Group 1, NR + cold lateral condensation (CLC); Group 2, EDR + LC; Group 3, NR + BeeFill; Group 4, EDR + BeeFill; Group 5, NR + Thermafil; and Group 6, EDR + Thermafil. Apical leakage was measured using a computerized fluid filtration meter with a laser system.Results:Statistical analysis revealed that the CLC demonstrated more microleakage in the EDR than in the NR (P < 0.01). Thermafil demonstrated more microleakage in the NR than in the EDR (P < 0.01). No statistically significant differences were found between the BeeFill groups (P > 0.05).Conclusions:The results of this study indicate that internal resorptive cavities can affect the apical sealing properties of different root canal filling techniques, with Thermafil ensuring the lowest apical microleakage.

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“…[ 8 – 10 ] Recently, a new device has been introduced: It is the Endo-Twinn, which is similar to System B plus a vibration source. [ 11 – 13 ] Also an other recent device, called E-Fill, has been put in the market that is similar to System B but it runs just for 10 seconds. The purpose of this study was to measure the temperatures inside the canal, depending on the time, using the System B, the Endo-Twinn and the E-Fill.…”

Section: Introductionmentioning

confidence: 99%

System B, Endo-Twinn and E-Fill. True temperatures inside the canal

2012

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Background:The aim of this study is to verify the variations of the temperature inside the root canal with three different gutta-percha heating systems.Materials and Methods:A split-tooth model was built with a lateral groove at 3.5-mm from working length (WL) in order to insert a Chromel-Alumel K-type thermocouple placed in contact with gutta-percha. The thermocouple was connected to a digital thermometer. Sixty obturations were made with medium gutta-percha points. For 20 specimens the System B was used with the Buchanan fine plugger and the temperature was set at 200°C; for other 20 specimens the Endo-Twinn with a fine plugger was used and for the last 20 specimens we used the E-Fill with a 40.04 plugger. All pluggers were pushed to 3.5 mm from WL so that the tips were in contact to the probe.Results:The analysis of 60 samples showed the highest temperature average using the System B after 10 seconds (86.85°C), after 15 seconds (94.9°C), after 20 seconds (100.4°C) and after 25 seconds (104.5°C). The Endo-Twinn average values are similar to System-B ones. The E-Fill average values are lower (69.9°C) than the other two systems evaluated only after 10 seconds due to limited working time. The temperatures average obtained using different systems of warm vertical compaction are lower than what was declared by the producing companies.Conclusion:Time is one the most important parameters to consider using these systems. Temperatures reached from the System B and Endo-Twinn after 25 seconds; however, seem to be sufficient to ensure an optimal adaptation of the gutta-percha in the anatomical complexity of root canals. The temperatures obtained from the E-Fill, only after 10 seconds, instead seems to be insufficient to assure the rheological characteristics of gutta-percha.

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A comparison of 5 gutta-percha obturation techniques to replicate canal defects

Cited by 12 publications

References 10 publications

Quality of different gutta-percha techniques when filling experimental internal resorptive cavities: A micro-computed tomography study

Quality of different gutta-percha techniques when filling experimental internal resorptive cavities: A micro-computed tomography study

Comparative analysis of three different filling techniques and the effects of experimental internal resorptive cavities on apical microleakage

System B, Endo-Twinn and E-Fill. True temperatures inside the canal

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