Effects of three kinds of crown materials on aspartate aminotransferase and alkaline phosphatase levels in gingival crevicular fluid
10.3969/j.issn.1001-3733.2010.02.026
- VernacularTitle:3种全冠修复体对基牙龈沟液中酶水平的影响
- Author:
Ying ZHANG
- Publication Type:Journal Article
- Keywords:
PFM;
Gingival crevicular fluid;
Aspartate aminotransferase;
Alkaline phosphatase
- From:
Journal of Practical Stomatology
2010;26(2):244-247
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To further investigate the effects of three kinds of material on the level of aspartate aminotransferase (AST) and alkaline phosphatase (ALP) in gingival crevicular fluid (GCF). Methods:The anterior teeth and the premolar teeth of 30 patients were divided into three groups randomly for Co-Cr alloy PFM, Ti PFM and all ceramic crown. Before tooth preparation, 1, 3 and 6 months after cementation, GCF was collected at the same sites. The levels of AST and ALP were detected by automated chemical analyzer, and analyzed the variation between the pre-restoration and post-restoration. Results:Before tooth preparation and 1 month after cementation, all indexes showed no difference among three groups. The level of GCF, AST and ALP of Co-Cr alloy group showed conspicuous difference with Ti PFM and all ceramic crowns after 3 months and 6 months. However, the levels of GCF, AST and ALP of Ti PFM group showed no difference with all ceramic crowns. Conclusion:Co-Cr based PFM crowns which clinically accepted have lead to changes of the levels of GCF, AST and ALP. Co-Cr based PFM crowns have negative influences on periodontal tissue. The Ti PFM and all ceramic crown may affect periodontium less than the Co-Cr PFM in observation period of this study.