Introduction:Long term success of any composite resin restorative materials mainly depends on their color stability. The aim of the investigation was to examine the color stability of three resin-based composite materials with a high content of inorganic filling material (Spectrum, Filtrex Z350 and Tetric N Ceram).

Introduction: Obturaion procedure plays a key role in the success of root canal treatment. The aim of this study was to determine the obturation related errors in endodontics by undergraduate students and interns. Material and methods: The present study was conducted on 1000 root canal treated teeth in the Department of Conservative Dentistry and Endodontics; Government Dental College and Hospital Srinagar Kashmir. Teeth in each group were evaluated for presence or absence of obturation related errors, i.e. underfill, overfill and improper lateral condensation. Results: A total of 1000 root canal treated teeth were evaluated in the study; out of which 615 (61.5%) had procedural errors. The frequency of different errors were-underfill (16.5%); overfill (14%) and improper lateral condensation (31%). Conclusion: Students as well as practitioners should show greater care to maintain accuracy of the working length throughout the procedure.

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