Radiopaque acrylic resins containing miscible heavy-metal compounds

H. R. Rawls; J. Starr; F. H. Kasten; M. Murray; J. Smid; I. Cabasso

doi:10.1016/S0109-5641(05)80006-5

Radiopaque acrylic resins containing miscible heavy-metal compounds

H. R. Rawls, J. Starr, F. H. Kasten, M. Murray, J. Smid, I. Cabasso

Comprehensive Dentistry

Research output: Contribution to journal › Article › peer-review

42 Scopus citations

Abstract

Radiopacity is needed in order to facilitate diagnosis of polymeric appliances, which may be dislodged and become impacted in the upper respiratory or digestive tracts. In order for a stable, optically transparent, radiopaque material to be provided, heavy-metal compounds were investigated which we had previously shown to form homogeneous structures with methyl methacrylate-based systems. It was found that, when present in PMMA at 11 to 14%, several compounds of either bismuth or uranium or 35% of an organo-zirconium compound impart radiopacity equivalent to that of aluminum. A low level of cytotoxicity and lack of mutagenicity indicated that a high level of biocompatibility can be expected. Processing characteristics are somewhat altered, but formulations satisfactory for use in various dental devices were found.

Original language	English (US)
Pages (from-to)	250-255
Number of pages	6
Journal	Dental Materials
Volume	6
Issue number	4
DOIs	https://doi.org/10.1016/S0109-5641(05)80006-5
State	Published - Oct 1990

ASJC Scopus subject areas

Materials Science(all)
Dentistry(all)
Mechanics of Materials

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title = "Radiopaque acrylic resins containing miscible heavy-metal compounds",

abstract = "Radiopacity is needed in order to facilitate diagnosis of polymeric appliances, which may be dislodged and become impacted in the upper respiratory or digestive tracts. In order for a stable, optically transparent, radiopaque material to be provided, heavy-metal compounds were investigated which we had previously shown to form homogeneous structures with methyl methacrylate-based systems. It was found that, when present in PMMA at 11 to 14%, several compounds of either bismuth or uranium or 35% of an organo-zirconium compound impart radiopacity equivalent to that of aluminum. A low level of cytotoxicity and lack of mutagenicity indicated that a high level of biocompatibility can be expected. Processing characteristics are somewhat altered, but formulations satisfactory for use in various dental devices were found.",

author = "Rawls, {H. R.} and J. Starr and Kasten, {F. H.} and M. Murray and J. Smid and I. Cabasso",

note = "Funding Information: Received October 5, 1989 Accepted February 5, 1990 This investigation was supported in part by USPHS Research Grants DE06170 and DE06179 from the National Institute of Dental Research.",

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AU - Rawls, H. R.

AU - Starr, J.

AU - Kasten, F. H.

AU - Murray, M.

AU - Smid, J.

AU - Cabasso, I.

N1 - Funding Information: Received October 5, 1989 Accepted February 5, 1990 This investigation was supported in part by USPHS Research Grants DE06170 and DE06179 from the National Institute of Dental Research.

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Y1 - 1990/10

N2 - Radiopacity is needed in order to facilitate diagnosis of polymeric appliances, which may be dislodged and become impacted in the upper respiratory or digestive tracts. In order for a stable, optically transparent, radiopaque material to be provided, heavy-metal compounds were investigated which we had previously shown to form homogeneous structures with methyl methacrylate-based systems. It was found that, when present in PMMA at 11 to 14%, several compounds of either bismuth or uranium or 35% of an organo-zirconium compound impart radiopacity equivalent to that of aluminum. A low level of cytotoxicity and lack of mutagenicity indicated that a high level of biocompatibility can be expected. Processing characteristics are somewhat altered, but formulations satisfactory for use in various dental devices were found.

AB - Radiopacity is needed in order to facilitate diagnosis of polymeric appliances, which may be dislodged and become impacted in the upper respiratory or digestive tracts. In order for a stable, optically transparent, radiopaque material to be provided, heavy-metal compounds were investigated which we had previously shown to form homogeneous structures with methyl methacrylate-based systems. It was found that, when present in PMMA at 11 to 14%, several compounds of either bismuth or uranium or 35% of an organo-zirconium compound impart radiopacity equivalent to that of aluminum. A low level of cytotoxicity and lack of mutagenicity indicated that a high level of biocompatibility can be expected. Processing characteristics are somewhat altered, but formulations satisfactory for use in various dental devices were found.

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Radiopaque acrylic resins containing miscible heavy-metal compounds

Abstract

ASJC Scopus subject areas

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