Abstract
Background:With root canal treatment,the organic debris and micro-organisms from pulp space is removed and an ideal canal preparation is achieved that is conducive of hermetic obturation. The purpose of this study was to correlate the pre-operative canal curvature with the post-operative curvaturein human extracted teethprepared with K-3 rotary systems.Methods:The root canal preparation was carried out on extracted human molars and premolars using K-3 endodontic rotary files. A pre and post-operative image of the teethusing digital radiograph weretaken in order to compare pre and post-operativecanal curvature. The images were saved in an images retrieval system (Gendex software, USA).Change in the canal curvature was measured using the software measuring tool(Vixwin software, USA).Student paired t-test and Pearson correlation test was applied at 0.05 level of significance.Results:There is a statistically significant difference between pre-operative and post-operative canal curvature (p-value <0.001) and a strong positive correlation (91% correlation) between pre-operative and post-operative canal curvature in teeth prepared with the K-3 rotary files.Conclusions:A significant difference between pre and post instrumentation curvature was found. Degree of canal curvature was not correlated with time taken for canal preparation
Sana Ehsan Nagi, , Farhan Raza Khan. (2017) COMPARISON OF PRE-OPERATIVE CURVATURE WITH POST-OPERATIVE CURVATURE IN ROOT CANALS TREATED WITH K-3 ROTARY SYSTEMS, JOURNAL OF AYUB MEDICAL COLLEGE ABBOTTABAD, Volume 29, Issue 2.
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