Technical quality of root fillings performed by undergraduate students in Saudi Arabia

Aim To evaluate the technical quality of root fillings performed in the undergraduate clinic of the Dental College, King Saud University, Saudi Arabia and to compare the technical quality of root canal treatment between the 4th- and 5th-year students. Methodology A random sample of 710 records of patients who had received dental treatment by under-graduate students at the College of Dentistry (Malaz University Campus), between the years of 2005–2008, was investigated. The final sample consisted of 550 root filled teeth in 459 patients. For each root filled tooth, at least three periapical radiographs were examined: preoperative, working length determination and post-operative. The length, density and taper of root fillings, as well as the presence of procedural errors, wer