Journal
MEDICAL PRINCIPLES AND PRACTICE
Volume 29, Issue 5, Pages 492-498Publisher
KARGER
DOI: 10.1159/000506878
Keywords
Gingival bleeding index; Retraction; Inflammation; MCP-1; Monocyte chemoattractant protein; Astringent
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Funding
- Faculty of Medicine, University of Nis, Serbia [1114629-4/11]
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Objective:A widely used chemical-mechanical method of gingival retraction can cause gingival tissue damage. The aim of this study was to test the influence of the chemical-mechanical gingival retraction procedures on the gingival bleeding index (GBI) and the salivary concentration of monocyte chemoattractant protein 1 (MCP-1) as an indicator of inflammatory changes in the gingiva.Materials and Methods:The effects of 2 different retraction agents (aluminum chloride and ferric sulfate) were compared, particularly their tissue damaging effect during tooth preparation. Therefore, GBI values and the salivary concentration of MCP-1 were assessed during the chemical-mechanical method of gingival retraction in a homogenous group of respondents. The subjects (n= 60) were divided into 2 experimental groups (G1 and G2) regarding the need for tooth preparing and making artificial crowns. Each group was further divided into 2 subgroups (R1 and R2) according to the type of the gingival retraction agent used (aluminum chloride and ferric sulfate).Results:Compared to the values at the study start, a statistically significant increase in GBI and salivary MCP-1(p< 0.001) 1 day after gingival retraction agent application was observed in both experimental groups. After 72 h, the values were lower than in the second observation period but still statistically significantly higher compared to the study start (p< 0.001), which indicated the reversibility of the tissue changes.Conclusion:Higher values of the investigated parameters were observed in the group of subjects with prepared teeth, and clinical changes were more pronounced after the use of ferric sulfate.
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