Root canal is a treatment sequence for the infected pulp of a tooth which result in the elimination ofinfection and protection of the decontaminated tooth from future microbial invasion. There are two process oneis cleaning and another one is obturation. During the second visit the temporary filling material likeguttaparcha is placed. A temporary filling material is placed again. This process is called obturation. It isassumed that obturation method closely resembles with mechanical injection moulding. Thus to carry out studyon compantion load in dental obturation.Acralyc blocks are required.Root canal is the naturally occurringanatomic space within the root of a tooth. It consist of the pulp chamber (within the coronal part of tooth), themain canal and more intricate anatomical branches that may connect the root canals each other or to thesurface of the oot. For measurement of compention load generally photoelastic techniques are used. Thus thematerial should be photoelastic. Acralyc is 2D photoelastic material and which is easily available and cheaperin cost.In Dental obturationphotoelastic blocks are necessary to study mechanical aspects. For doing dentaloperation we generally used traditional method to fill the dental cavity. There is a no standard for applied loadwe don’t have any analytical result for safe operation in endodontic treatment. After completion of this projectwe get proper values of compantion load and we fill material and make surgery safely.But manufacturing of thisacralyc block is very complicated due to its shape so static analysis is one of the best techniques to analyze thestress concentration and deformation in the filler material. By using it we easily make the safe dental treatmentand we avoid the creation of voids in the cavity.