The Effect of Four Commonly used Root Canal Irrigants on the Removal of Smear Layer: An In-vitro Scanning Electron Microscope Study.

Background: The objective of this study was to compare the efficiency of four commonly used chemicals in their ability to remove smear layer after instrumentation using scanning electron microscope (SEM).

Materials And Methods: Seventy-five extracted single canaled teeth of roots ranging 10-12 mm in length were used for the study. Teeth were divided into 4 study groups and 1 control group of 15 teeth each.

[Adolescent onset obsessive compulsive disorder presented as dissociative disorders: role of drug assisted interview].

Paediatric Obsessive Compulsive Disorder (OCD) is still under-diagnosed, despite significant advances made in identifying obsessive-compulsive symptoms. The authors report a case of adolescent-onset OCD presenting as a mixed dissociative disorder. The drug assisted interview provided a breakthrough in revising the correct diagnosis of the clinical condition.