A comparison of the area of the canal space occupied by gutta-percha following four gutta-percha obturation techniques using procosol sealer

Eguchi, Dennis S.; Peters, Donald D.; Hollinger, Jeffrey O.; Lorton, Lewis

doi:10.1016/s0099-2399(85)80141-2

Cited by 68 publications

(73 citation statements)

References 28 publications

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“…Such a void, if present, is likely not to be identified as an area of lower radiographic density, as studied herein. 12,13 In laterally compacted root fillings, the occurrence of spreader tracks within filling is frequently recorded, 14,15 particularly in cases in which the space opened by the finger spreader is not completely filled by the accessory cone as it is rarely placed up to the same depth. 16 It could be speculated that the areas of lower radiographic density found in this study are the result of spreader tracks.…”

Section: Discussionmentioning

confidence: 99%

Lack of correlation between radiographic density of filling and fluid infiltration

Machado¹,

Back²,

Tomazinho³

et al. 2014

Dental Press Endod

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Objective: The aim of the present study was to determine whether there is a correlation between fluid infiltration and visible radiographic voids in root filling. Methods: A total of 56 mandibular incisors with straight single canals, complete root formation and no anatomical complexities were selected for this research. Teeth were instrumented by means of Profile System 04 up to file 35 under the same irrigation protocol. Filling was performed by lateral condensation. Subsequently, mesiodistal radiographs were taken for each root and the quality of filling was assessed by calculating the percentage of voids based on the total area. Samples were further assembled into a fluid infiltration set-up. Pearson's correlation test was used to assess the correlation between fluid infiltration and void areas in root canal fillings. Results: Means and standard deviations of fluid infiltration were 0.311 ± 0.215 µL/min and the percentages of radiographic voids were 7.97% ± 3.93%. Conclusion: No correlation was found between these two variables (P = 0.587). According to the results of this study, the amount of fluid infiltration detected in lower incisors is not influenced by the percentage of radiographically visible voids.

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Section: Discussionmentioning

confidence: 99%

Lack of correlation between radiographic density of filling and fluid infiltration

Machado¹,

Back²,

Tomazinho³

et al. 2014

Dental Press Endod

View full text Add to dashboard Cite

show abstract

“…The goal of obturation should therefore be to maximize the amount of solid core and minimize the amount of sealer in the prepared canal space. The method for evaluating obturation quality in this study allowed for a direct observation of the amount of solid core versus the total area of prepared canal 17) . It is concluded therefore that, under the conditions of the present study, the non-standardized size medium gutta-percha cone resulted in more efficient obturation than the ISO-standardized master guttapercha cone as a master cone when lateral compaction technique was used in curved canals prepared with 0.06 tapered nickel-titanium rotary instruments.…”

Section: ⅳ Discussionmentioning

confidence: 99%

Obturation efficiency of non-standardized gutta-percha cone in curved root canals prepared with 0.06 taper nickel-titanium instruments

Lee

Kim

2005

J Korean Acad Conserv Dent

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The purpose of this study was to evaluate the obturation efficiency of a non-standardized gutta-percha cone in curved root canals prepared with 0.06 taper nickel-titanium instruments.Sixty simulated curved root canals in clear resin blocks were prepared with crown-down technique using 0.06 taper rotary ProTaper TM and ProFile (Dentsply-Maillefer) until apical canal was size 30. Root canals were randomly divided into 4 groups of 15 blocks and obturated with cold-laterally compacted gutta-percha technique by using either a non-standardized size medium gutta-percha cone or an ISO-standardized size 30 one as a master cone. Gutta-percha area ratio were calculated at apical levels of 1, 3, and 5 ㎜ using AutoCAD 2000 after cross-sectioning, and the data were analyzed with one-way and two-way ANOVAs and Duncan' s multiple range test.Non-standardized size medium cone groups showed significantly higher gutta-percha area ratio than standardized cone groups at all apical levels (p < 0.01).Non-standardized cone groups used significantly less accessory cones than standardized cone groups (p < 0.01). [J Kor Acad Cons Dent 30(2):79-85, 2005]

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“…1). 각 군의 절단 수준별 근관내 gutta-percha 평 균 면적 비는 2mm 수준을 제외하곤 2군(UF)이 제일 높았 으며, 2mm 수준에서는 1군(EO)이 제일 높은 평균면적비 19) . 이같은 사실은 Pitt Fort …”

Section: ⅰ 서 론unclassified

A comparison of thermoplasticized injectable gutta-percha techniques in ribbon-shaped canals : adaptation to canal walls

Hwang

Cho

Kim

2002

J Korean Acad Conserv Dent

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The aim of this study is to compare the adaptability of thermoplasticized injectable gutta-percha technique to the canal walls in ribbon-shaped canals.Thirty resin models simulated ribbon-shape canals were instrumented to #40 using .06 taper Profile systems. Three groups of each 10 resin models were obturated by the lateral condensation technique(LC) and the two thermoplasticized injectable gutta-percha technique; Ultrafil Endoset+Obtura II(EO) and Ultrafil Firmset(UF), respectively.After resin model were kept at room temperature for 4 days, they were resected horizontally with microtome at 1, 2, 3, 4 and 5mm levels from apex. At each levels, image of resected surface were taken using CCD camera under a stereomicroscope at ×40 magnification and stored. Ratio of the area of gutta-percha was obtained by calculating area of gutta-percha cone to the total area of canal using digitized image-analyzing program. The data were collected then analyzed statistically using One-way ANOVA.The results were as follows. 1. At 1mm levels, there was no statistically significant difference in the mean ratio of gutta-percha among the groups. 2. At 2mm level, EO showed the highest mean ratio of gutta-percha (p<0.05) and there was no significant difference between LC and UF. 3. At 3, 4, 5mm levels, EO and UF had significantly greater mean ratio of gutta-percha than LC(p<0.05) and there was no significant difference between EO and UF.In conclusion, the thermoplasticized injectable gutta-percha techniques demonstrated relatively favorable adaptability to canal walls than lateral condensation technique in ribbon-shaped canals except for 1mm level.

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A comparison of the area of the canal space occupied by gutta-percha following four gutta-percha obturation techniques using procosol sealer

Cited by 68 publications

References 28 publications

Lack of correlation between radiographic density of filling and fluid infiltration

Lack of correlation between radiographic density of filling and fluid infiltration

Obturation efficiency of non-standardized gutta-percha cone in curved root canals prepared with 0.06 taper nickel-titanium instruments

A comparison of thermoplasticized injectable gutta-percha techniques in ribbon-shaped canals : adaptation to canal walls

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