Evaluation of Efficiency And Temperature Rise of Different Techniques In Removing Glass Fiber Posts

Aim: The aim of this study was to determine the temperature rise on the root surface and efficiency of different techniques in removing glass fiber posts. Material and Method: Thirty extracted premolar teeth were decoronated, instrumented and then obturated with gutta-percha and canal sealer. Post spaces were prepared, followed by cementation of glass fiber posts. The roots were divided into 2 groups (n=15). In group 1, a post removal kit, in Group 2 burlargo drill were used for removing the posts. To simulate a clinical environment, the teeth were embedded in polysiloxane and suspended over a heated water bath at approximately 370C. Thermocouple was placed on the external root surface. Removal times and temperature changes were recorded. The data were analyzed by ANOVA test. results: There were significant differences between the groups in terms of both time and heat (p<0.05). The post removal kit was significantly more effective and induced lower temperature than bur-largo drill. Conclusion: Based on the results, post removal kit was found safer and more effective than bur-largo drill for removing glass fiber posts.