Effect of Bone Graft in Accelerating Tooth Movement and Bone Remodelling in Corticotomy Facilitated Orthodontic Tooth Movement A Split Mouth Study

Abstract

Introduction newlineAccording to the American Association of Orthodontists (AAO), the length of newlinecomprehensive orthodontic treatment ranges between 18 30 months. Such long newlinetreatment duration with the fixed appliances however poses risks like increased newlinechances of caries, periodontal diseases, demineralization of the enamel, external newlineroot resorption. Interestingly, it is also seen that the patient motivation and newlinecooperation is inversely proportional to the treatment duration. Hence, reducing newlineorthodontic treatment time is one of the primary goals for orthodontists as it newlineleads to increased patient satisfaction. newlineAim and Objective newlineThe aim of this study is to analyze the efficiency of bone graft at the corticotomy newlinesite in accelerating orthodontic tooth movement and increasing the bone density newlineat the corticotomy site compared to conventional corticotomy. newline12 of 138 newlineMaterials and Method newlineThe study was designed as a prospective randomised control trial, which newlineincluded 16 sites above the age of 15 years, requiring extraction of upper first newlinepremolars, divided into two groups. Group 1 underwent corticotomy procedure newlinefollowed by placement of bone graft and group 2 underwent conventional newlinecorticotomy. Following the surgical procedure the upper canines were retracted newlineusing a NiTi coil spring with a force of 150gm. The patients were recalled every newline15 days in the first month and once in 30 days for the next two months and newlinerecords were taken at each review. The rate of space closure and amount of newlineanchor loss was assessed using the 3D records obtained. The change in bone newlinedensity and bone thickness was assessed using Computed Tomography(CT) newlinetaken during the start of treatment and after 3months. The results were newlinesubjected for statistical evaluation. newlineResults newlineThe independent t test revealed that there is a significant difference in the rate newlineof space closure and the amount of anchor loss between two groups.