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Objective: The aim of the study was to assess the radiographic quality of root fillings done by the undergraduate students. Materials and Methods: A sample of 258 clinical cases of patients who received root canal treatment from undergraduate students in the years 2010 to 2012 were selected, out of which 194 root fillings were assessed radiographically based on the following criteria; length and density of root filling. Root fillings were categorized as acceptable and unacceptable. Percentages and χ² test were used for statistical analysis. Results: From the 194 root fillings, 119 (61.35%) were having acceptable and 75 (38.65%) were having unacceptable root fillings. From the total 75 unacceptable root fillings, 49 (65.33%) had density problems, 11 (14.66%) were overfilled, and 15 (20%) were under filled. Chi-square test was done for statistical analysis; revealed no significant difference in the radiographic quality between anterior and posterior root fillings. Conclusion: The radiographic quality of root fillings done by undergraduate students was acceptable in 61.35% cases. Most common cause of unacceptable fillings was due to density problems compared to overfilling and under filling. Results from the study indicate that remedial measures have to be undertaken to improve training of undergraduate students in root canal treatment procedure.