Related Experiment Video
Updated: May 29, 2026

Reducing State Anxiety Using Working Memory Maintenance
Published on: July 19, 2017
Separation anxiety: Gates-Glidden drills can be hazardous to your health
Robert S Lee1, Satish Alapati, Bradford R Johnson
1Department of Endodontics, University of Illinois at Chicago, Chicago, Illinois 60612, USA.
Introduction:
Gates-Glidden drills are commonly used during endodontic therapy to aid in the development of straight-line access and coronal enlargement of the root canal. The drills come in various sizes and are typically used in a low-speed air-driven or electric handpiece. As a safety feature to aid in retrieval if separation of the drill occurs during use, Gates-Glidden drills are designed to separate near the hub of the drill to allow for easier retrieval.
Methods:
This case report presents a potentially serious complication associated with the use of Gates-Glidden drills.
Results:
A contaminated drill became embedded in the arm of an endodontic resident and required surgical removal.
Conclusions:
Proper office safety precautions can help prevent accidents that may result in serious injury.
Related Concept Videos
Generalized Anxiety Disorder
Piaget's Stage 1 of Cognitive Development
Exploration...
Anxiety: Overview
Individuals with anxiety often experience a range of physical and emotional symptoms, including sweating, trembling, tachycardia, and disturbances in sleep patterns. These symptoms vary in intensity and frequency but are generally disruptive and distressing.
Hazan and Shaver's Attachment Styles
Social Anxiety Disorder
Schemas

