Solubility and Dimensional Change after Setting of Root Canal Sealers: A Proposal for Smaller Dimensions of Test Samples

Carvalho-Júnior, Jacy Ribeiro; Correr-Sobrinho, Lourenço; Correr, A.B.; Sinhoreti, Mário Alexandre Coelho; Consani, Símonídes; Sousa-Neto, Manoel Damião

doi:10.1016/j.joen.2007.06.004

Cited by 95 publications

(129 citation statements)

References 18 publications

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“…Epoxy-based sealers, such as AH Plus, exhibit very low shrinkage rates during setting, as well as long-term dimensional stability, and po- lymerization without formation of formaldehyde. 3 Thermaseal Plus is another example of an epoxyresin sealer, which has been demonstrated as presenting significantly less leakage than other sealer groups. 4 Other important resin-based materials are the thermoplastic synthetic urethane dimethacrylate-based root-filling materials such as RealSeal or Epiphany, 5 described as presenting increased resistance to fractures of root-filled teeth.…”

Section: Introductionmentioning

confidence: 99%

Effect of time of extraction on the biocompatibility of endodontic sealers with primary human fibroblasts

2012

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The aim of this work was to evaluate the effects of different times of extraction on the cytotoxicity of six representatives of different root canal sealer groups-Real Seal SE, AH Plus, GuttaFlow, Sealapex, Roth 801, and ThermaSeal Plus-with human gingival fibroblasts. The materials were prepared according to manufacturers' specifications, and were incubated in culture medium (DMEM) at 37°C for 1, 7, 14, 21, and 28 days, with daily washing, to simulate periodontal ligament clearance. Human fibroblasts were exposed to the final extracts at 24 hours, and cell viability was determined by MTT assay, with exposure to unconditioned DMEM as a negative control. Statistical analysis comparing cytotoxicities at each exposure time was performed by ANOVA with Scheffé adjustment for multiple comparisons at a 95% confidence level. Results indicated that GuttaFlow was significantly less cytotoxic than all other sealers (p < 0.05) at 1 day of extraction. After 7 days of extraction, cell viability for GuttaFlow was significantly increased as compared with that of all groups except sealer AH Plus. At day 14, cytotoxicity of Sealapex was significantly higher than that of all other sealers (p < 0.05). At days 21 and 28, there were no significant differences in cytotoxicity among sealer groups. All materials presented some level of cytotoxicity to fibroblasts, while GuttaFlow was the least cytotoxic sealer tested. However, the cytotoxicity of all materials seemed to decrease similarly in a time-dependent manner.

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Section: Introductionmentioning

confidence: 99%

Effect of time of extraction on the biocompatibility of endodontic sealers with primary human fibroblasts

2012

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“…For the solubility test, the size of the specimens was determined in accordance with Carvalho-Junior et al (20) that proposed to use a matrix smaller than ADA nº 57. The authors concluded that reducing the size of the specimens does not affect the accuracy of the solubility test.…”

Section: Discussionmentioning

confidence: 99%

“…The size of the specimens and the amount of water used was modified as proposed by Carvalho-Junior et al (20). The mold was positioned over a glass slide and then filled with the experimental sealer.…”

Section: Solubilitymentioning

confidence: 99%

Pentaerythritol Tetrasalicylate in the Chemical Composition of Root Canal Sealers

et al. 2018

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The aim of this study was to synthesize and evaluate physicochemical properties of a new salicylate derivative in experimental calcium-based root canal sealers. Two salicylate derivatives were synthesized for the transesterification reaction of methyl salicylate with two different alcohols (1,3-butylenoglicol disalicylate-BD and pentaerythritol tetrasalicylate -PT) in molar ratio 1:3 and 1:6, respectively. The products (BD and PT), were characterized by Fourier Transform Infrared Spectroscopy (FTIR) and Nuclear Magnetic Resonance spectroscopy (RMN). Calcium-based experimental sealers were prepared with the same catalyst paste (60% of MTA, 39% of n-ethyl-o-toluenesulfonamide, and 1% titanium dioxide) and four different concentrations of BD and PT in the base pastes

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“…não possui prata e recentemente houve uma alteração em seu radiopacificador que passou de óxido de bismuto para óxi-do de zircônio. estudos têm demonstrado que esse cimento possui adequadas propriedades físico-químicas 4,5,6 . Apresenta baixa solubilidade e adequada estabilida- 7,8,9, e também contra e. faecalis 10,11 .…”

Section: Revisão De Literaturaunclassified

“…Apresenta baixa solubilidade e adequada estabilida- 7,8,9, e também contra e. faecalis 10,11 . carvalho-Junior et al 6 (2007) afirmam que as características do AH Plus podem ser atribuídas à sua matriz resinosa que é resistente à solubilidade, o que leva à redução das falhas na obturação, evitanto a penetração de e. faecalis.…”

Section: Revisão De Literaturaunclassified

Atividade antimicrobiana de cimentos endodônticos

Mascarenhas

Duque

2017

RO_UNICID

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RESUMOA atividade antimicrobiana é uma propriedade fundamental dos cimentos endodônticos devido à permanência de microrganismos residuais no canal radicular, mesmo após o preparo químico-mecânico e o emprego do curativo de demora. o objetivo deste trabalho é realizar uma revisão de literatura a respeito das propriedades antimicrobianas de alguns dos principais cimentos endodônticos. embora haja controvérsias em relação a essa propriedade, possivelmente devido a diferenças nas metodologias empregadas nos estudos, pode-se concluir que os cimentos com melhor atividade antimicrobiana foram (em ordem crescente): Endofill, Ketac Endo, Sealapex, AH Plus, Endo CPM Sealer, Sealer 26 e Epiphany. Activ GP ainda necessita de pesquisas científicas que avaliem essa propriedade. descritores: Produtos com ação antimicrobiana • Cimentos dentários • Obturação do canal radicular ABSTRACT the antimicrobial activity is a fundamental property of root-canal sealers due to persistence of residual microorganisms in the root canal system, even after the chemo-mechanical preparation and using of intracanal dressing. the aim of this study is to review the literature about the antimicrobial properties of some of the main root-canal sealers. Although there is controversy regarding this property, probably due to differences in the methodologies used in the studies, it was concluded that the sealers with the best antimicrobial activity were (in ascending order): Endofill, Ketac Endo, Sealapex, AH Plus, Endo CPM Sealer, Sealer 26 and Epiphany. Activ GP still needs scientific research to evaluate this property. descriptors: Products with antimicrobial action • Dental cements • Root canal obturation

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Solubility and Dimensional Change after Setting of Root Canal Sealers: A Proposal for Smaller Dimensions of Test Samples

Cited by 95 publications

References 18 publications

Effect of time of extraction on the biocompatibility of endodontic sealers with primary human fibroblasts

Effect of time of extraction on the biocompatibility of endodontic sealers with primary human fibroblasts

Pentaerythritol Tetrasalicylate in the Chemical Composition of Root Canal Sealers

Atividade antimicrobiana de cimentos endodônticos

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