Bacterial leakage of mineral trioxide aggregate as a root-end filling material

Torabinejad, M.; Rastegar, Akbar Falah; Kettering, James D.; Ford, T. R. Pitt

doi:10.1016/s0099-2399(06)80433-4

Cited by 358 publications

(259 citation statements)

References 18 publications

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“…Although the results of this study and previous leakage investigations (5,9,13) show that MTA provides better adaptation and seal than commonly used root-end filling materials, physical properties as well as in vitro and in vivo biocompatability tests of this material should be performed.…”

Section: Discussionmentioning

confidence: 83%

“…In an in vitro dye leakage study using methylene blue dye, Torabinejad et al (5) evaluated the sealing ability of amalgam, Super-EBA, Intermediate Restorative Material (IRM), and mineral trioxide aggregate (MTA) as root-end filling materials, and showed that MTA leaked significantly less than all the other materials. In another study, they determined the time needed for Staphylococcus epidermidis to penetrate around 3-mm-thick root-end fillings of amalgam, Super-EBA, IRM, or MTA, and found MTA leaked significantly less than the other materials (p < 0.05) during a 90-day period (9).…”

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confidence: 99%

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Comparative investigation of marginal adaptation of mineral trioxide aggregate and other commonly used root-end filling materials

Torabinejad

Smith²,

Kettering³

et al. 1995

Journal of Endodontics

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299

211

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This study investigated the marginal adaptation of mineral trioxide aggregate (MTA) as a root-end filling material, compared with commonly used rootend filling materials by scanning electron microscopy (SEM). Eighty-eight single-rooted freshly extracted human teeth were cleaned, shaped, and obturated with gutta-percha and root canal sealer. Following root-end resection and cavity preparation, the root-end cavities were filled with amalgam, Super-EBA, Intermediate Restorative Material (IRM), or MTA. Using a slow-speed diamond saw, 40 roots were longitudinally sectioned into two halves. Resin replicas of resected root ends of the remaining nonsectioned roots were also prepared. After mounting longitudinal sections of roots and resin replicas of resected roots on aluminum stubs, the distance between the test rootend filling materials and surrounding dentin was measured at four points under SEM. Examination of the original samples showed numerous artifacts in the longitudinal sections of the specimens. In contrast, the resin replicas of resected and filled root ends had no artifacts. Statistical analysis of data comparing gap sizes between the root-end filling materials and their surrounding dentin shows that MTA had better adaptation compared with amalgam, Super-EBA, and IRM.

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Section: Discussionmentioning

confidence: 83%

mentioning

confidence: 99%

Comparative investigation of marginal adaptation of mineral trioxide aggregate and other commonly used root-end filling materials

Torabinejad

Smith²,

Kettering³

et al. 1995

Journal of Endodontics

Self Cite

299

211

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“…The principal components of the grey-coloured formula are tricalcium oxide, tricalcium silicate, bismuth oxide, dicalcium silicate, tricalcium aluminate, tetracalcium aluminoferrite and calcium sulfate dihydrate. [15][16][17][18] The more aesthetic white-coloured preparation lacks the tet racalcium aluminoferrite. 19,20 Lately, MTA has been used as a pulpotomy medica ment in primary molars and it was found to be a successful material.…”

Section: Introductionmentioning

confidence: 99%

Comparison of mineral trioxide aggregate and formocresol as pulp medicaments for pulpotomies in primary molars

Noorollahian

2008

Br Dent J

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• Mineral trioxide aggregate (MTA) was assessed in pulpotomised primary molars.• The clinical and radiographic success rate of MTA was recorded at 24 months follow-up.• This clinical trial study showed the success of white MTA in primary molars. I N B R I E F RESEARCHPurpose The aim of this study was to compare the effect of white mineral trioxide aggregate (MTA) to that of formocresol (FC) as pulp dressing agents in pulpotomised primary molars. Methods In this clinical trial study, 60 lower second primary molars of 46 children were treated by a conventional pulpotomy technique. The teeth were randomly assigned to the MTA (experimental) and FC (control) groups by random numbered table. Following removal of the coronal pulp and haemostasis, the pulp stumps were covered with an MTA paste in the experimental group. In the control group, FC was placed with a cotton pellet over the pulp stumps. The teeth of both groups were restored with stainless steel crowns. Children arrived for clinical and radiographic follow-up evaluation after 6, 12 and 24 months. Results The treated teeth in FC group (n = 18) were clinically and radiographically successful after 24 months. The radiographic follow-up evaluation revealed one failure (furcation involvement) in 18 molars treated with MTA after 24 months. The treated teeth in MTA group were clinically successful 24 months postoperatively. Pulp canal obliteration was observed in one of the teeth treated with MTA and four of the teeth treated with FC. Conclusion MTA could be used as a safe medicament for pulpotomy in cariously exposed primary molars and could be a substitute for FC.

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“…Ainda, o MTA é indicado para apicificação de dentes com rizogênese incompleta 4,5 e, em cirurgias parendodônticas, como material retrobturador 6 .…”

Section: Introductionunclassified

Análise físico-química do MTA e do cimento Portland associado a quatro diferentes radiopacificadores

Costa

Campos

Duarte

et al. 2014

Rev. odontol. UNESP

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ResumoIntrodução: O Mineral Trióxido Agregado (MTA) é composto por cimento Portland (CP) e um radiopacificador (óxido de bismuto). Objetivo: Avaliar tempo de presa, solubilidade, pH, liberação de íons Cálcio e radiopacidade do cimento Portland puro ou associado a quatro radiopacificadores (sulfato de bário, carbonato de bismuto, óxido de bismuto e iodofórmio), comparados ao MTA branco (Angelus, Londrina, Brasil). Material e método: A proporção empregada CP/radiopacificador foi de 4:1 em peso, (80% de cimento Portland e 20% de radiopacificador Descritores: Mineral trióxido agregado; obturação retrógrada; materiais retrobturadores. AbstractIntroduction: Mineral Trioxide Aggregate (MTA) is composed of Portland cement (PC), and a radiopacifier (bismuth oxide). Objective: To evaluate the setting time, solubility, pH, calcium ion release and radiopacity of pure Portland cement and its association to four radiopacifiers, (Barium sulfate, bismuth carbonate, bismuth oxide and iodoform), and White MTA (Angelus, Londrina, Brazil). Material and method: The ratio CP/radiopacifier used was 4:1 by weight (80% Portland cement and 20% radiopacifier). The setting time was evaluated according the specification ADA 57. The solubility was analyzed according to ISO 6876/2001 specification. The pH was evaluated using a digital pHmeter and the release of Ca ++ ions by atomic absorption spectrophotometer. The radiopacity was measured in millimeters of aluminum (mm/Al). The results were submitted to ANOVA and Tukey tests using 5% of significance level. Result: Barium sulfate did not alter the final setting time of the PC. Observed radiopacity was less than the minimum recommended by ADA 57 and ISO 6876/2001 for CP and CP associated with barium sulfate. The PC associated with iodoform showed solubility above the 3% recommended by ISO 6876/2001. All materials provided alkalinization and promoted calcium ion release. Conclusion: Bismuth carbonate and bismuth oxide provided proper initial setting time, solubility, pH, calcium ion release and radiopacity when combined with CP.

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Bacterial leakage of mineral trioxide aggregate as a root-end filling material

Cited by 358 publications

References 18 publications

Comparative investigation of marginal adaptation of mineral trioxide aggregate and other commonly used root-end filling materials

Comparative investigation of marginal adaptation of mineral trioxide aggregate and other commonly used root-end filling materials

Comparison of mineral trioxide aggregate and formocresol as pulp medicaments for pulpotomies in primary molars

Análise físico-química do MTA e do cimento Portland associado a quatro diferentes radiopacificadores

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