Radiopacity, pH and antimicrobial activity of Portland cement associated with micro- and nanoparticles of zirconium oxide and niobium oxide
スポンサーリンク
概要
- 論文の詳細を見る
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 (ZrO2) or niobium oxide (Nb2O5). The experimental materials: White PC (PC), MTA-Angelus® (MTA), PC+ZrO2micro, PC+ZrO2nano, PC+Nb2O5micro and PC+Nb2O5nano 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+ZrO2micro showed pH similar to MTA. All materials showed antimicrobial activity against the evaluated microorganisms. In conclusion, ZrO2 and Nb2O5 could be alternative radiopacifiers to be added to calcium silicate materials.
- 日本歯科理工学会の論文
著者
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Da Silva
Departamento De Biologia Celular Universidade De Brasilia
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DA SILVA
Department of Restorative Dentistry, Araraquara Dental School, UNESP–Univ Estadual Paulista
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BERNARDI Maria
São Carlos Physics Institute, USP–University of São Paulo
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GUERREIRO TANOMARU
Department of Restorative Dentistry, Araraquara Dental School, UNESP–Univ Estadual Paulista
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STORTO Inara
Department of Restorative Dentistry, Araraquara Dental School, UNESP–Univ Estadual Paulista
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BOSSO Roberta
Department of Restorative Dentistry, Araraquara Dental School, UNESP–Univ Estadual Paulista
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COSTA Bernardo
Department of Restorative Dentistry, Araraquara Dental School, UNESP–Univ Estadual Paulista
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TANOMARU-FILHO Mário
Department of Restorative Dentistry, Araraquara Dental School, UNESP–Univ Estadual Paulista
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