Radiopacity of Portland Cement Associated With Different Radiopacifying Agents

Duarte, Marco Antônio Húngaro; Kadre, Guâniara D'arc de Oliveira El; Vivan, Rodrigo Ricci; Guerreiro-Tanomaru, Juliane Maria; Tanomaru-Filho, Mário; Moraes, Ivaldo Gomes de

doi:10.1016/j.joen.2009.02.006

Cited by 175 publications

(176 citation statements)

References 30 publications

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“…It has already been demonstrated that the association of ZrO 2 with PC promotes radiopacity 10,11) , not causing damage to the fibroblasts 4) and periodontal ligament cells 12) . It was also showed that 30% of ZrO2 added to PC does not interfere in the hydration mechanism of this cement, providing calcium ions release and resulting in a bioactive material 14) .…”

Section: Discussionmentioning

confidence: 99%

“…In the present study, MTA showed 5 mmAl as radiopacity value, in accordance with previous studies 10) . MTA's radiopacifier is bismuth oxide, which promotes radiopacity when associated with PC 10,11) . Notwithstanding, bismuth oxide may increase PC's porosity, damaging the longevity of the material 7,8) .…”

Section: Discussionmentioning

confidence: 99%

“…The area corresponding to the specimen was selected in each radiographic image to verify the thickness of the aluminum stepwedge detected by the software as equivalent to the material's radiographic density. Thus, the radiopacity of the evaluated materials was estimated using a conversion equation 10) . The values recorded for each material were averaged to obtain a single value in mmAl.…”

Section: Radiopacitymentioning

confidence: 99%

“…Other materials have been evaluated as alternative to bismuth oxide, such as, zirconium oxide (ZrO 2) which provides proper radiopacity 10,11) , and cell viability 12) . Also, ZrO2 associated with PC presents radiopacity, compressive strength, setting time, water absorption and solubility similar to ProRoot MTA ®13) .…”

Section: Introductionmentioning

confidence: 99%

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Radiopacity, pH and antimicrobial activity of Portland cement associated with micro- and nanoparticles of zirconium oxide and niobium oxide

et al. 2014

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The aim of this study was to evaluate some properties of the calcium silicate materials Mineral Trioxide Aggregate (MTA) and Portland cement (PC) with microparticulated (micro) and nanoparticulated (nano) zirconium oxide (ZrO 2 ) or niobium oxide (Nb 2 O 5 ). The experimental materials: White PC (PC), MTA-Angelus ® (MTA), PC+ZrO 2 micro, PC+ZrO 2 nano, PC+Nb 2 O 5 micro and PC+Nb 2 O 5 nano were submitted to radiopacity and pH evaluations. Furthermore, the antimicrobial activity against different microorganisms was assessed by agar diffusion test. MTA presented higher radiopacity than other materials. However, all materials except PC presented higher radiopacity than recommended by ISO/ADA. MTA promoted higher pH values in all analyzed periods (p≤0.05). At the initial periods, PC and PC+ZrO 2 micro showed pH similar to MTA. All materials showed antimicrobial activity against the evaluated microorganisms. In conclusion, ZrO 2 and Nb 2 O 5 could be alternative radiopacifiers to be added to calcium silicate materials.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Radiopacitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Radiopacity, pH and antimicrobial activity of Portland cement associated with micro- and nanoparticles of zirconium oxide and niobium oxide

et al. 2014

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“…The composition of Portland cement is very similar to that of MTA 8 . Other similarities between these two materials include pH 9 , density 10 , antimicrobial activity, biocompatibility 11 and lower resistance to compression 12 .…”

Section: Introductionmentioning

confidence: 99%

Root perforations treatment using mineral trioxide aggregate and Portland cements

et al. 2010

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Purpose: Clinical, radiological and histological evaluation of root perforations treated with mineral trioxide aggregate (MTA) or Portland cements, and calcium sulfate barrier. Methods: One molar and 11 premolar teeth of a male mongrel dog received endodontic treatment and furcations were perforated with a high-speed round bur and treated with a calcium sulfate barrier. MTA, Portland cement type II (PCII) and type V (PCV), and white Portland cement (WPC) were used as obturation materials. The teeth were restored with composite resin and periapical radiographs were taken. The animal was euthanized 120 days post-surgery for treatment evaluation. RESUMOObjetivo: Avaliar clínica, radiológica e histologicamente perfurações radiculares tratadas com MTA e cimentos Portland, com barreira de sulfato de cálcio. Métodos: A amostra foi constituída por 11 dentes pré-molares e um molar de cão macho, sem raça definida. Após tratamento endodôntico realizaram-se perfurações nas furcas com broca esférica de alta rotação e barreira de sulfato de cálcio. Foram utiliados os cimentos MTA, Portland tipo II (CPII), Portland tipo V (CPV) e Portland branco estrutural (CPB). Os dentes foram restaurados com resina composta e submetidos a radiografias periapicais. O animal foi confinado por 120 dias e submetido à eutanásia para avaliações. Resultados: Primeiro pré-molar inferior direito (MTA), terceiro pré-molar inferior direito (CPV), segundo pré-molar inferior esquerdo (MTA) e segundo pré-molar inferior direito (CPB): clinicamente normal; leve área radiotransparente na furca; pequeno infiltrado inflamatório e neoformação óssea. Terceiro pré-molar inferior esquerdo (CPII), primeiro pré-molar superior direito (CPB), terceiro pré-molar superior direito (CPII) e primeiro molar superior esquerdo (CPV): clinicamente normal; área radiopaca na furca; neoformação óssea. Segundo pré-molar superior direito (MTA), segundo pré-molar superior esquerdo (CPB) e terceiro pré-molar superior esquerdo (CPII): clinicamente com lesão na furca; intensa área radiolucida; infiltrado inflamatório intenso. Conclusão: Todos os cimentos induziram a neoformação óssea.

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Physical Properties of MTA

Caicedo

Gettleman

2014

Mineral Trioxide Aggregate

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Radiopacity of Portland Cement Associated With Different Radiopacifying Agents

Cited by 175 publications

References 30 publications

Radiopacity, pH and antimicrobial activity of Portland cement associated with micro- and nanoparticles of zirconium oxide and niobium oxide

Radiopacity, pH and antimicrobial activity of Portland cement associated with micro- and nanoparticles of zirconium oxide and niobium oxide

Root perforations treatment using mineral trioxide aggregate and Portland cements

Physical Properties of MTA

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