ABSTRACT
Background:East Java green tea leaf (Camelia sinensis)possesed active compound such as EpigallocatechinGallate (EGCG) is well known for enhancing the boneremodelling through enhancement of VascularEndothelial Growth Factor (VEGF) and FibroblastGrowth Factors (FGF-2). Remodelling of alveolar boneis very important to obtain optimal Orthodontic ToothMovement (OTM) to align the tooth. Aim: Toinvestigate the expression of VEGF and FGF-2expression during OTM in Wistar rat afteradministration of EGCG from C. sinensis Extract(EGCG-CSE) Wistar rats. Material and Methods: Thisstudy was true experimental study with post-test onlycontrol group design. Twenty eight Wistar rats wererandomly selected and divided into four groupsaccordingly; K- group which did not get both EGCGCSE administration and OTM; K+ group with OTM for14 days, but no EGCG-CSE administration; 1 (T1) with4 days of OTM and 7 days of EGCG-CSEadministration; treatment group 2 (T2) with both 14days OTM and EGCG-CSE administration. Ten g2 force/mm of NiTi close coil spring was installedbetween the upper left molars and cental insicive tomove the molar mesially that induce OTM. All OTMthanimal model were terminated in the 14 days.Maxillary was isolated for immunohistochemistryinvestigation. Tukey Honest Significant Difference(HSD) was done after Analysis of Variance (ANOVA)test to investigate the significant difference betweengroups (p<0.05). Results: The highest positive VEGFexpression was found in the T2 in both area.Meanwhile, the highest positive FGF-2 expression wasfound in the K-group in both area. There weresignificant different of VEGF and FGF-2 expression inboth area between groups except T1 and T2.Conclusion: Post administration of EGCG-CSE canstimulate the VEGF and FGF-2 expression during OTMin Wistar rats.