Removal of an Instrument Fractured by Ultrasound and the Instrument Removal System under Visual Magnification

Removal of an instrument fractured by ultrasound and the instrument removal system under visual magnification.

AIM The case of a lower molar with apical periodontitis, which had previous root canal treatment and a fractured instrument in the distal root beyond the foramen, is presented. BACKGROUND The simultaneous presence of a foreign body (endodontic instrument or material) in periapical tissues and microorganisms in the root canal, are etiological factors in the formation or maintenance of a periap...

An Innovative Universal Screw Removal Instrument

OBJECTIVE To present the clinical benefits of an instrument designed to facilitate removal of polyaxial screws during revision surgery. METHODS All polyaxial screws can be removed without additional materials or a large amount of debridement using our newly designed instrument. Forty-two screws were removed from five patients without any complications using this instrument. RESULTS We remov...

Broken instrument removal. The endodontic challenge.

Surgical Removal of Fractured Endodontic Instrument in the Periapex of Mandibular First Molar

The purpose of this article is to present the surgical removal of a broken endodontic file from the periapical region of the distal root of a mandibular first molar. The methods of diagnosis and measurement of the distance of the instrument to the adjacent vital structures in the periapical region was done with simple means and in an economical manner.

Handwriting Difficulties: Introducing an Instrument

Objectives: The main purpose of this study is to produce an instrument for handwriting evaluation and to execute it on mentally retarded (MR) students. Methods: This was a descriptive, cross-sectional, and relationship study. 126 MR students (53 girls and 73 boys) ranging from 9 to 19 years old (13.23±2.17) from two exceptional children schools in shahr-e-rey participated in this study. A ha...