Evaluation of the thermoplasticity of gutta-percha and Resilon® using the Obtura II System at different temperature settings

Tanomaru-Filho, Mário; Pinto, R.; Bosso, Roberta; Nascimento, Camila Almeida; Berbert, Fábio Luiz Camargo Villela; Guerreiro-Tanomaru, Juliane Maria

doi:10.1111/j.1365-2591.2011.01889.x

Cited by 11 publications

(12 citation statements)

References 22 publications

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“…The Thermafil, Obtura and Microseal GP systems were used in this study due to their widespread clinical use in root canal systems and their excellent filling properties[1423] even in oval-shaped root canals. [7] They also show high apical sealing capabilities, as showed in a microbiological model.…”

Section: Discussionmentioning

confidence: 99%

“…[1234] Several techniques have been proposed to obtain optimal adherence of gutta-percha (GP) to root canal walls[567] to minimize microbial leakage[8] and to ensure treatment success. [8910] Since the introduction of the warm vertical condensation technique by Schilder, in 1967,[10] a number of clinical placement techniques involving warm GP have been developed.…”

Section: Introductionmentioning

confidence: 99%

“…[8910] Since the introduction of the warm vertical condensation technique by Schilder, in 1967,[10] a number of clinical placement techniques involving warm GP have been developed. [4911] However, there are no reports comparing different brands of thermoplasticized GP with respect to their chemical composition and thermal behavior.…”

Section: Introductionmentioning

confidence: 99%

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Chemical composition and thermal behavior of five brands of thermoplasticized gutta-percha

et al. 2013

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Objective:The aim of this study was determine the chemical composition and thermal behavior of Thermafil (TH), Microseal Cone (MC), Microseal Microflow (MF), Obtura (OB) and Obtura Flow (OF). In addition, their thermal behavior in response to temperature variations was studied by differential scanning calorimetry (DSC) to determine the temperature at which gutta-percha switches from the beta to alpha form, and from the alpha to the amorphous phase.Materials and Methods:The organic and inorganic fractions were separated by dissolution in chloroform. Gutta-percha (GP) was precipitated with acetone. The inorganic fraction was analyzed via Elemental Microanalysis. Energy Dispersive X-ray Microanalysis and X-ray Diffraction were used to identify the chemical elements and compounds (BaSO4 and ZnO). Thermal analysis was conducted using DSC.Results:The organic and inorganic fractions ranged from 21.3% and 26.9% of weights, respectively. MC and MF showed the highest percentages of organic compounds (P = 0.0125). All specimens exhibited two crystalline transformations when heated from ambient temperature to 130°C. MC presented the highest percentage of GP.Conclusions:No correlation was observed between chemical composition and thermal behavior. Each of the products showed thermal behavior that is typical of beta-phase gutta-percha.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Chemical composition and thermal behavior of five brands of thermoplasticized gutta-percha

et al. 2013

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“…The use of resin cements alone for root canal obturation also creates difficulties in their removal during retreatment. These obstacles have apparently been resolved by the recent launching and intensive promotion of a polyester based thermoplastic root filling material that is claimed to be bondable to methacrylate based resins (6-9). …”

Section: Introductionmentioning

confidence: 99%

Push-out bond strength of different endodontic obturation material at three different sites - In-vitro study

Mishra¹,

Sharma²,

Mishra³

et al. 2017

J Clin Exp Dent

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BackgroundThe key to success of any root canal therapy is adequate obturation of the prepared root canal space. Root canal sealers are not dimensionally stable and might dissolve partially over a period of time. The objective of this in vitro study is to evaluate the push-out bond strength to intraradicular dentin of two endodontic obturation materials.Material and MethodsForty extracted single rooted permanent teeth were used. Canals orifice was explored, teeth were instrumented. The samples were divided into two groups each containing twenty specimens obturated with different obturation material (Group1 Epiphany/Resilon and Group 2 Gutta Percha/AH Plus).The obturation systems used in this study was Element Obturation unit (Sybron Endo). Each tooth root was horizontally sectioned in approximately 2-mm thick slices from the coronal 1/3rd, middle 1/3rd and apical 1/3rd. The push-out bond strength of each specimen was calculated using Universal Testing Machine. The statistical analysis was done using two way analysis of variance (ANOVA) and tukey’s test.ResultsThere was significant difference between push out bond strength of Resilon/Epiphany and AH Plus/Gutta Percha. Gutta percha group was superior with push out bond strength of 2.22 (± 0.16) Mpa in comparison to Resilon/Epiphany group with 1.61 (±0.14) Mpa (p<0.001).ConclusionsThe interfacial bond strength achieved with Resilon/Epiphany self-etch (SE) to intraradicular dentine was not superior to that of AH Plus/Gutta Percha. Key words:AH Plus, Apical leakage, Epiphany, Gutta percha, Push-out test Resilon.

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“…10,11 In addition, thermoplasticity of Resilon is higher than those of conventional and thermoplastic gutta-percha, 12 such as Obturaflow, Endoflow and Regular Obtura. 13 …”

Section: Introductionmentioning

confidence: 99%

Resilon: A Comprehensive Literature Review

Lotfi,

Ghasemi,

Rahimi

et al. 2013

Journal of Dental Research

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Evaluation of the thermoplasticity of gutta-percha and Resilon® using the Obtura II System at different temperature settings

Abstract: Thermoplasticity values were influenced both by the temperature settings on the Obtura II System and by the type of material analysed. Obtura Flow and Resilon had the highest mean thermoplasticity values.

Cited by 11 publications

References 22 publications

Chemical composition and thermal behavior of five brands of thermoplasticized gutta-percha

Chemical composition and thermal behavior of five brands of thermoplasticized gutta-percha

Push-out bond strength of different endodontic obturation material at three different sites - In-vitro study

Resilon: A Comprehensive Literature Review

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