Apical adaptation, sealing ability and push-out bond strength of five root-end filling materials

Amoroso-Silva, Pablo Andrés; Marciano, Marina Angélica; Guimarães, Bruno Martini; Duarte, Marco Antônio Húngaro; Sanson, A. F. G.; Moraes, Ivaldo Gomes de

doi:10.1590/1807-3107bor-2014.vol28.0043

Cited by 19 publications

(22 citation statements)

References 29 publications

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“…Amoroso-Silva et al (18) According to Hong et al (20), the push-out strength was improved when MTA with calcium chloride was used. The results of the present study are consistent with those of Amoroso-Silva et al (18), who found 25.35 MPa for MTA Angelus after push-out test using apical sections of roots from human teeth.…”

Section: Discussionsupporting

confidence: 93%

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Push-out Bond Strength of Root-end Filling Materials

et al. 2016

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The aim of this study was to evaluate the bond strength of root-end filling materials. Forty 2-mm-thick slices were obtained from human single-rooted teeth. After root canal preparation using a 1.5 mm diameter cylindrical drill, the dentinal walls were prepared by diamond ultrasonic tip (CVD T0F-2). The specimens were divided according the material (n=10): MTA Angelus (MTAA), MTA Sealer (MTAS, experimental), Sealer 26 (S26) and zinc oxide and eugenol cement (ZOE). The push-out test was performed in a mechanical test machine (EMIC DL 2000) at 1 mm/min speed. The failure type was evaluated by stereomicroscopy. The results were subjected to ANOVA and Tukey test, at 5% significance level. MTAA (19.18 MPa), MTAS (19.13 MPa) and S26 (15.91 MPa) showed higher bond strength (p<0.05). ZOE (9.50 MPa) showed the least bond strength values (p<0.05). Adhesive failure was prevalent in all groups, except for ZOE, which showed mixed failures. It was concluded that root-end filling materials MTA Angelus, MTA Sealer and Sealer 26 showed higher bond strength to dentinal walls than zinc oxide and eugenol cement after retrograde preparation. P u s h -o u t B o n d S t r e n g t h o f R o o t -e n d F i l l i n g M a t e r i a l s

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Section: Discussionsupporting

confidence: 93%

“…Sealer 26 showed similar results to MTA-based materials. This material was used in a thicker consistency favoring its clinical application as root-end filling material (18,19). Amoroso-Silva et al (18) According to Hong et al (20), the push-out strength was improved when MTA with calcium chloride was used.…”

Section: Discussionmentioning

confidence: 99%

Push-out Bond Strength of Root-end Filling Materials

et al. 2016

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“…Sealer 26 has also demonstrated to prevent bacterial leakage when compared with IRM 15 . Amoroso-Silva et al 16 demonstrated that Sealer 26, MTA and calcium silicate cements were similar after analyzing sealing by fluid leakage and dentinal adaptation. In the present study, similar filling ability was observed for S26 and ZOE, and both presented higher values than MTA.…”

Section: Discussionmentioning

confidence: 99%

“…Sealer 26 (S26) is a resin-based endodontic sealer, composed of bismuth oxide, calcium hydroxide and epoxy resin, and requires higher powder/resin proportion to favor insertion into root-end cavities 13 . It has excellent sealing properties when used as rootend filling material 15 , and presents interface adaptation similar to calcium silicate-based cements 16 . Zinc oxide and Eugenol cement (ZOE) may also be used with higher powder/liquid proportion 17 , favoring its insertion into root-end cavities.…”

Section: Introductionmentioning

confidence: 99%

Micro-CT analysis of filling ability and porosity of root-end filling materials

Tanomaru‐Filho

Espir

Nogueira

et al. 2017

Rev. odontol. UNESP

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ResumoIntrodução: Capacidade de preenchimento da cavidade retrógrada e porosidade são propriedades importantes de materiais retrobturadores e podem ser avaliadas por meio de microtomografia computadorizada (micro-CT). Objetivo: Avaliar a capacidade de preenchimento e porosidade de materiais retrobturadores por meio de micro-CT. Material e método: Cavidades com 1 mm de diâmetro e 3 mm de altura foram preparadas em dentina bovina utilizando pontas ultrassônicas (CVD No. 6.1107-6) e foram preenchidas com Mineral Trióxido Agregado (MTA), Sealer 26 (S26) e cimento de óxido de zinco e eugenol (OZE). As cavidades foram escaneadas em micro-CT antes e após o preenchimento. A capacidade de preenchimento foi calculada com base na porcentagem em volume, das cavidades preenchidas. O número e porcentagem dos poros fechados foram avaliados em toda extensão da cavidade preenchida (total) e por terços (cervical, médio e apical) por meio de análises bi e tridimensionais. Os dados de preenchimento foram submetidos aos testes estatísticos ANOVA e Tukey e a porosidade aos testes de Kruskall-Wallis e Dunn, com nível de significância de 5%. Resultado: S26 e OZE apresentaram maior capacidade de preenchimento que o MTA (p<0,05). S26 mostrou maior porosidade total (em número e porcentagem) (p<0,05). Em todos os terços, após as análises 2D e 3D, a porosidade foi maior para S26 em comparação ao MTA e OZE (p<0,05). Conclusão: Embora Sealer 26 tenha apresentado maior porosidade, o material foi associado a uma adequada capacidade de preenchimento. A análise em micro-CT mostrou ausência de correlação entre capacidade de preenchimento e porosidade.Descritores: Microtomografia por Raio-X; porosidade; materiais dentários; endodontia. AbstractIntroduction: Filling ability of retrograde cavity and porosity are important properties for root-end filling materials and may be evaluated by using microcomputed tomography (micro-CT). Objective: To evaluate filling ability and porosity of root-end filling materials using microcomputed tomography (micro-CT). Material and method: Cavities with 1 mm internal diameter and 3 mm depth were prepared in bovine dentin sections by using ultrasonic tips (CVD No. 6.1107-6), and filled by Mineral Trioxide Aggregate (MTA); Sealer 26 (S26) and zinc oxide and eugenol cement (ZOE). Before and after filling, cavities were scanned by using micro-CT (SkyScan 1176). Filling and porosity were analyzed by using CTAn software. Filling ability was calculated based on volumetric percentage of the filled cavity. The number and percentage of closed pores were measured throughout entire extension of the filled cavity (total) and in each third (cervical, middle and apical), by using bi and tridimensional analyses. The filling data were submitted to ANOVA and Tukey statistical tests, and porosity data to Kruskall-Wallis and Dunn tests, at a 5% significance level. Result: S26 and ZOE presented higher filling ability than MTA (p<0.05). S26 showed the highest total porosity (number and percentage) (p<0.05). In all thirds after 2D and 3D an...

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“…New calcium silicate-based cements have also been studied, 23,24 and some of the modified calcium silicate and resin cements under study may present the potential for clinical use. CSCM is a modified calcium silicate cement that contains mineral aggregates, additives and pigments.…”

Section: Discussionmentioning

confidence: 99%

Cytotoxicity and genotoxicity of calcium silicate-based cements on an osteoblast lineage

et al. 2016

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Cytotoxicity and genotoxicity of calcium silicate-based cements on an osteoblast lineage Abstract: Several calcium silicate-based biomaterials have been developed in recent years, in addition to Mineral Trioxide Aggregate (MTA). The aim of this study was to evaluate the cytotoxicity, genotoxicity and apoptosis/necrosis in human osteoblast cells (SAOS-2) of pure calcium silicate-based cements (CSC) and modified formulations: modified calcium silicate-based cements (CSCM) and three resin-based calcium silicate cements (CSCR1) (CSCR 2) (CSCR3). The following tests were performed after 24 hours of cement extract exposure: methyl-thiazolyl tetrazolium (MTT), apoptosis/necrosis assay and comet assay. The negative control (CT-) was performed with untreated cells, and the positive control (CT+) used hydrogen peroxide. The data for MTT and apoptosis were submitted to analysis of variance and Bonferroni's posttest (p < 0.05), and the data for the comet assay analysis, to the Kruskal-Wallis and Dunn tests (p < 0.05). The MTT test showed no significant difference among the materials in 2 mg/mL and 10 mg/mL concentrations. CSCR3 showed lower cell viability at 10 mg/mL. Only CSC showed lower cell viability at 50 mg/mL. CSCR1, CSCR2 and CSCR3 showed a higher percentage of initial apoptosis than the control in the apoptosis test, after 24 hours exposure. The same cements showed no genotoxicity in the concentration of 2 mg/mL, with the comet assay. CSC and CSCR2 were also not genotoxic at 10 mg/mL. All experimental materials showed viability with MTT. CSC and CSCR2 presented a better response to apoptosis and genotoxicity evaluation in the 10 mg/mL concentration, and demonstrated a considerable potential for use as reparative materials.

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Apical adaptation, sealing ability and push-out bond strength of five root-end filling materials

Cited by 19 publications

References 29 publications

Push-out Bond Strength of Root-end Filling Materials

Push-out Bond Strength of Root-end Filling Materials

Micro-CT analysis of filling ability and porosity of root-end filling materials

Cytotoxicity and genotoxicity of calcium silicate-based cements on an osteoblast lineage

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