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2008•Journal of Taishan Medical CollegeRequires access

Effect of different PFM materials on the level of TNF-α in gingival crevicular fluid

Ping Ji

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Abstract

Objective: To investigate the effect of different inner crown materials on periodontal tissue by means of measuring the level of TNFα in gingival crevicular fluid(GCF) after PFM restoration.Methods: The anterior teeth of 24 patients selected by random were restored by Ni-Cr alloy PFM and Au-Pt alloy PFM.GCF was collected from labial and lingual of mesial site and distal site before the tooth preparation by filter paper.At the point of 6 month after cementation,GCF was collected at the same sites.The level of TNF-α was detected by enzyme-linked-immunoadsorbent assay(ELISA)method,and analyzed the variation between the pre-restoration and post-restoration.Results: Compared with pre-restoration,all indexes had significant difference between the Ni-Cr alloy group and the Au-Pt alloy group after 6 month.Conclusion: Non-noble metal has bad effect on the peirodontal tissue.

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What this paper is about

Objective: To investigate the effect of different inner crown materials on periodontal tissue by means of measuring the level of TNFα in gingival crevicular fluid(GCF) after PFM restoration.Methods: The anterior teeth of 24 patients selected by random were restored by Ni-Cr alloy PFM and Au-Pt alloy PFM.GCF was collected from labial and lingual of mesial site and distal site before the tooth preparation by filter paper.At the point of 6 month after cementation,GCF was collected at the same sites.The level of TNF-α was detected by enzyme-linked-immunoadsorbent assay(ELISA)method,and analyzed the variation between the pre-restoration and post-restoration.Results: Compared with pre-restoration,all indexes had significant difference between the Ni-Cr alloy group and the Au-Pt alloy group after 6 month.Conclusion: Non-noble metal has bad effect on the peirodontal tissue.

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Available abstract

Objective: To investigate the effect of different inner crown materials on periodontal tissue by means of measuring the level of TNFα in gingival crevicular fluid(GCF) after PFM restoration.Methods: The anterior teeth of 24 patients selected by random were restored by Ni-Cr alloy PFM and Au-Pt alloy PFM.GCF was collected from labial and lingual of mesial site and distal site before the tooth preparation by filter paper.At the point of 6 month after cementation,GCF was collected at the same sites.The level of TNF-α was detected by enzyme-linked-immunoadsorbent assay(ELISA)method,and analyzed the variation between the pre-restoration and post-restoration.Results: Compared with pre-restoration,all indexes had significant difference between the Ni-Cr alloy group and the Au-Pt alloy group after 6 month.Conclusion: Non-noble metal has bad effect on the peirodontal tissue.

Key concepts: Dentistry, Crown (dentistry), Medicine, Significant difference, Alloy, Cementation (geology), Materials science, Metallurgy

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