摘要

Introduction This study evaluates the radiopacity and cytotoxicity of Portland cements containing a radiopacifier of bismuth oxide (Bi 2O3) with yttria-stabilized zirconia (YSZ) dopant. Methods Various radiopacifier powders of Bi2O3 with 0%, 15%, 30%, and 100% YSZ dopant were prepared by solid-state reaction at 700 C for 12 hours and characterized by x-ray diffraction. Portland cement/radiopacifier/calcium sulfate (75/20/5) were mixed and set by deionized water. Changes in radiopacity and in vitro cell viability of the hydrated cements were assessed. An average of 6 measured equivalent thickness of aluminum (N = 6) capable of producing similar radiographic density was recorded. The cytotoxicity of each material was determined in MC3T3 E1 cell-based methyl-thiazol-tetrazolium assay. Results The x-ray diffraction patterns of YSZ doped Bi2O3 are different from those of pure Bi2O3 and YSZ. The cement-containing radiopacifier of Bi2O3/YSZ (85/15) presented significantly greater radiopacity (P 2O3. The mouse osteoblastic cell (MC3T3-E1) viabilities of these 2 groups were statistically similar (P 2O3/YSZ (85/15) reveals higher radiopacity but similar cell viability when compared with pure Bi 2O3. It shows potential use as an alternative radiopacifier in root-end filling materials.
原文英語
頁(從 - 到)251-254
頁數4
期刊Journal of Endodontics
40
發行號2
DOIs
出版狀態已發佈 - 二月 2014

指紋

Cell Survival
X-Rays
Calcium Sulfate
Aluminum
Powders
bismuth oxide
zirconium oxide
yttria
Water
In Vitro Techniques

ASJC Scopus subject areas

  • Dentistry(all)

引用此文

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title = "Radiopacity and cytotoxicity of portland cement containing zirconia doped bismuth oxide radiopacifiers",
abstract = "Introduction This study evaluates the radiopacity and cytotoxicity of Portland cements containing a radiopacifier of bismuth oxide (Bi 2O3) with yttria-stabilized zirconia (YSZ) dopant. Methods Various radiopacifier powders of Bi2O3 with 0{\%}, 15{\%}, 30{\%}, and 100{\%} YSZ dopant were prepared by solid-state reaction at 700 C for 12 hours and characterized by x-ray diffraction. Portland cement/radiopacifier/calcium sulfate (75/20/5) were mixed and set by deionized water. Changes in radiopacity and in vitro cell viability of the hydrated cements were assessed. An average of 6 measured equivalent thickness of aluminum (N = 6) capable of producing similar radiographic density was recorded. The cytotoxicity of each material was determined in MC3T3 E1 cell-based methyl-thiazol-tetrazolium assay. Results The x-ray diffraction patterns of YSZ doped Bi2O3 are different from those of pure Bi2O3 and YSZ. The cement-containing radiopacifier of Bi2O3/YSZ (85/15) presented significantly greater radiopacity (P 2O3. The mouse osteoblastic cell (MC3T3-E1) viabilities of these 2 groups were statistically similar (P 2O3/YSZ (85/15) reveals higher radiopacity but similar cell viability when compared with pure Bi 2O3. It shows potential use as an alternative radiopacifier in root-end filling materials.",
keywords = "Biocompatibility, mineral trioxide aggregate-like cement, radiopacity",
author = "Chiehfeng Chen and Hsieh, {Sung Chih} and Teng, {Nai Chia} and Kao, {Chih Kuo} and Lee, {Sheng Yang} and Lin, {Chung Kwei} and Yang, {Jen Chang}",
year = "2014",
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T1 - Radiopacity and cytotoxicity of portland cement containing zirconia doped bismuth oxide radiopacifiers

AU - Chen, Chiehfeng

AU - Hsieh, Sung Chih

AU - Teng, Nai Chia

AU - Kao, Chih Kuo

AU - Lee, Sheng Yang

AU - Lin, Chung Kwei

AU - Yang, Jen Chang

PY - 2014/2

Y1 - 2014/2

N2 - Introduction This study evaluates the radiopacity and cytotoxicity of Portland cements containing a radiopacifier of bismuth oxide (Bi 2O3) with yttria-stabilized zirconia (YSZ) dopant. Methods Various radiopacifier powders of Bi2O3 with 0%, 15%, 30%, and 100% YSZ dopant were prepared by solid-state reaction at 700 C for 12 hours and characterized by x-ray diffraction. Portland cement/radiopacifier/calcium sulfate (75/20/5) were mixed and set by deionized water. Changes in radiopacity and in vitro cell viability of the hydrated cements were assessed. An average of 6 measured equivalent thickness of aluminum (N = 6) capable of producing similar radiographic density was recorded. The cytotoxicity of each material was determined in MC3T3 E1 cell-based methyl-thiazol-tetrazolium assay. Results The x-ray diffraction patterns of YSZ doped Bi2O3 are different from those of pure Bi2O3 and YSZ. The cement-containing radiopacifier of Bi2O3/YSZ (85/15) presented significantly greater radiopacity (P 2O3. The mouse osteoblastic cell (MC3T3-E1) viabilities of these 2 groups were statistically similar (P 2O3/YSZ (85/15) reveals higher radiopacity but similar cell viability when compared with pure Bi 2O3. It shows potential use as an alternative radiopacifier in root-end filling materials.

AB - Introduction This study evaluates the radiopacity and cytotoxicity of Portland cements containing a radiopacifier of bismuth oxide (Bi 2O3) with yttria-stabilized zirconia (YSZ) dopant. Methods Various radiopacifier powders of Bi2O3 with 0%, 15%, 30%, and 100% YSZ dopant were prepared by solid-state reaction at 700 C for 12 hours and characterized by x-ray diffraction. Portland cement/radiopacifier/calcium sulfate (75/20/5) were mixed and set by deionized water. Changes in radiopacity and in vitro cell viability of the hydrated cements were assessed. An average of 6 measured equivalent thickness of aluminum (N = 6) capable of producing similar radiographic density was recorded. The cytotoxicity of each material was determined in MC3T3 E1 cell-based methyl-thiazol-tetrazolium assay. Results The x-ray diffraction patterns of YSZ doped Bi2O3 are different from those of pure Bi2O3 and YSZ. The cement-containing radiopacifier of Bi2O3/YSZ (85/15) presented significantly greater radiopacity (P 2O3. The mouse osteoblastic cell (MC3T3-E1) viabilities of these 2 groups were statistically similar (P 2O3/YSZ (85/15) reveals higher radiopacity but similar cell viability when compared with pure Bi 2O3. It shows potential use as an alternative radiopacifier in root-end filling materials.

KW - Biocompatibility

KW - mineral trioxide aggregate-like cement

KW - radiopacity

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