Linking leptin in GCF with tooth movement among Indians

Area of Science:

• Biochemistry
• Orthodontics
• Periodontology

Background:

• Leptin, a hormone involved in bone metabolism, may play a role in orthodontic tooth movement.
• Gingival crevicular fluid (GCF) is a transudate reflecting the inflammatory and metabolic status of the periodontium.

Purpose of the Study:

• To investigate the association between orthodontic tooth movement and leptin concentration in GCF.
• To analyze the dynamic changes in GCF leptin levels during the initial phase of orthodontic force application.

Main Methods:

• GCF samples were collected from 30 orthodontic patients at five time points: baseline, 1 hour, 24 hours, 7 days, and 1 month post-force application.
• Leptin concentration in GCF was measured using standardized methods.
• Tooth movement was quantified using dental casts.
• Statistical analysis included one-way ANOVA with Bonferroni correction and Pearson's correlation test.

Main Results:

• GCF leptin concentration exhibited a biphasic pattern, increasing from baseline to a peak at 24 hours, then decreasing at 7 days, and rising again at 1 month.
• A statistically significant correlation (r=0.625) was found between the average GCF leptin concentration and the degree of tooth movement.
• The observed changes in GCF leptin levels were statistically significant (P < 0.05).

Conclusions:

• GCF leptin concentration undergoes significant biphasic changes in response to orthodontic force.
• There is a significant positive association between GCF leptin levels and the rate of orthodontic tooth movement.