Evaluation on the Corrosion of the Three Ni-Cr Alloys with Different Composition
Dental casting alloys are widely used in contact with oral tissue for many years now. With the development of new dental alloys over the past 15 years, many questions remain unanswered about their biologic safety. Concepts and current issues concerning the response to the biologic effects of dental...
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | International Journal of Dentistry |
| Online Access: | http://dx.doi.org/10.1155/2011/397029 |
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| author | Srinivasa B. Rao Ramesh Chowdhary |
| author_facet | Srinivasa B. Rao Ramesh Chowdhary |
| author_sort | Srinivasa B. Rao |
| collection | DOAJ |
| description | Dental casting alloys are widely used in contact with oral tissue for many years now. With the development of new dental alloys over the past 15 years, many questions remain unanswered about their biologic safety. Concepts and current issues concerning the response to the biologic effects of dental casting alloys are presented. In this paper, samples of three commercially available nickel-chrome (Ni-cr) casting alloys (Dentaurum, Bego, Sankin) were taken to assess their corrosion behavior, using potentiodynamic polarization method (electrochemical method) with fusayama artificial saliva as an electrolyte medium to check for their biocompatibility. The parameters for corrosion rate and corrosion resistance were obtained from computer-controlled corrosion schematic instrument, namely, potentiostat through corrosion software (power CV). The results obtained were analyzed by classic Tafel analysis. Statistical analysis was done by Student's 𝑡-test and ANOVA test. It was concluded that Dentarum and Bego showed satisfactory corrosive behavior, with exception of Sankin which depicted higher corrosion rate and least resistance to corrosion. Thus, the selection of an alloy should be made on the basis of corrosion resistance and biologic data from dental manufactures. |
| format | Article |
| id | doaj-art-c76b233395124c7faf1514fe58af885b |
| institution | Kabale University |
| issn | 1687-8728 1687-8736 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Dentistry |
| spelling | doaj-art-c76b233395124c7faf1514fe58af885b2025-02-03T01:29:55ZengWileyInternational Journal of Dentistry1687-87281687-87362011-01-01201110.1155/2011/397029397029Evaluation on the Corrosion of the Three Ni-Cr Alloys with Different CompositionSrinivasa B. Rao0Ramesh Chowdhary1Department of Prosthodontics, Mamata Dental College and Hospital, Khammam 507002, IndiaDepartment of Maxillofacial Prosthodontics, S. Nijalingappa Institute of Dental Sciences & Research Centre, Gulbarga 585105, IndiaDental casting alloys are widely used in contact with oral tissue for many years now. With the development of new dental alloys over the past 15 years, many questions remain unanswered about their biologic safety. Concepts and current issues concerning the response to the biologic effects of dental casting alloys are presented. In this paper, samples of three commercially available nickel-chrome (Ni-cr) casting alloys (Dentaurum, Bego, Sankin) were taken to assess their corrosion behavior, using potentiodynamic polarization method (electrochemical method) with fusayama artificial saliva as an electrolyte medium to check for their biocompatibility. The parameters for corrosion rate and corrosion resistance were obtained from computer-controlled corrosion schematic instrument, namely, potentiostat through corrosion software (power CV). The results obtained were analyzed by classic Tafel analysis. Statistical analysis was done by Student's 𝑡-test and ANOVA test. It was concluded that Dentarum and Bego showed satisfactory corrosive behavior, with exception of Sankin which depicted higher corrosion rate and least resistance to corrosion. Thus, the selection of an alloy should be made on the basis of corrosion resistance and biologic data from dental manufactures.http://dx.doi.org/10.1155/2011/397029 |
| spellingShingle | Srinivasa B. Rao Ramesh Chowdhary Evaluation on the Corrosion of the Three Ni-Cr Alloys with Different Composition International Journal of Dentistry |
| title | Evaluation on the Corrosion of the Three Ni-Cr Alloys with Different Composition |
| title_full | Evaluation on the Corrosion of the Three Ni-Cr Alloys with Different Composition |
| title_fullStr | Evaluation on the Corrosion of the Three Ni-Cr Alloys with Different Composition |
| title_full_unstemmed | Evaluation on the Corrosion of the Three Ni-Cr Alloys with Different Composition |
| title_short | Evaluation on the Corrosion of the Three Ni-Cr Alloys with Different Composition |
| title_sort | evaluation on the corrosion of the three ni cr alloys with different composition |
| url | http://dx.doi.org/10.1155/2011/397029 |
| work_keys_str_mv | AT srinivasabrao evaluationonthecorrosionofthethreenicralloyswithdifferentcomposition AT rameshchowdhary evaluationonthecorrosionofthethreenicralloyswithdifferentcomposition |