COMPARISON OF STRESS DISTRIBUTION IN ANTERIOR SEGMENT WITH SECOND PREMOLAR EXTRACTION- A FINITE ELEMENT STUDY

Abstract

Background: Aim of this research was to compare the stress distribution in anterior segment with class I elastics and class II elastics with second premolar extraction. Beegs mechanics was used for this research. Material & Method: CBCT of 20 years old male patient was used for this research. Further with the help computer geometric model of both maxillary and mandibular arch it was converted to finite element method. Every individual tooth, bone, brackets, arch wire, elastics, buccal tube and periodontal ligament were transformed into nodes and elements. Then calculation was processed. Result: With the use of class I elastics maximum movement was noticed in central incisors. In the posterior segment first molar moved distally by 0.001mm. with the use of class II elastics maximum movement was noticed in central incisors. In the posterior segment first molar showed distal movement by0.004mm. Whereas second premolar too showed distally movement by movement 0.003 mm.