Acid Phosphatase Activity in Gingival Crevicular Fluid During Human Orthodontic Tooth Movement

Arif Yezdani

doi:10.13005/bpj/711

Abstract

Introduction Orthodontic tooth movement is characterized by continual bone deposition in the tension side and continual bone resorption in the compression side. However, this bone turnover is characterized by periods of activation, resorption, reversal and formation occurring after orthodontic fo

Highlights

Orthodontic tooth movement is characterized by continual bone deposition in the tension side and continual bone resorption in the compression side
From the Acid Phosphatase (ACP) activity values obtained at each site from every individual patient included in the study, the mean ACP levels in the Gingival Crevicular Fluid (GCF) at the mesial and distal sites of the distalized canine (DC) and the contralateral canine (CC) was calculated. (Table I)
Since the observed values of acid phosphatase activity in Gingival Crevicular Fluid (ACP in GCF) in mesial and distal sites was close to the expected values in the P-P plot, it was assumed that the said activity follows normal distribution and independent samples t-tests were used for making comparison between control and experimental group

Summary

Introduction

Orthodontic tooth movement is characterized by continual bone deposition in the tension side and continual bone resorption in the compression side. This bone turnover is characterized by periods of activation, resorption, reversal and formation occurring after orthodontic force application. Increases in lactic acid and citric acid during orthodontic tooth movement were reported by Miyajima et al 3 which suggested their correlation with alveolar bone resorption. Lowney et al 5 reported an increase in tumour necrosis factor alpha in GCF from teeth undergoing orthodontic force. Griffiths et al 6 found that in orthodontically treated teeth there was an increase in the levels of osteocalcin and piridinium cross-links of bone

Methods

Results

Discussion

Conclusion