The torsional properties of a new type of endodontic hand instrument, the Canal Master, were compared with conventional machined K-type endodontic files. Sizes 20 through 50 were tested in clockwise (CW) and counterclockwise (CCW) directions. Canal Master instruments exhibited significantly less torque at yield and at failure in both the CW and CCW directions. Rotation at failure was significantly greater for the Canal Master instruments in both CW and CCW directions. There was no significant difference in either torque or the amount of rotation for the Canal Master instruments when comparing CW versus CCW rotation. There was no clinically visible evidence of deformation of the Canal Master instruments prior to torsional failure.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/S0099-2399(06)81264-1 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Practices and preferences in the use of magnification among endodontists and restorative dentists: A multicentre study.
PLoS One
January 2025
Department of Prosthetic Dental Sciences, Jouf University, Sakaka, KSA Kingdom of Saudi Arabia.
Background And Objectives: Aim of the current study was to assess the perception, preference, and practice of endodontists and restorative dentists at different locations around the world about dental magnification instruments.
Materials And Methods: A multicenter, cross-sectional study was ethically approved from the local committee of bioethics. After thorough literature search, a questionnaire was designed and validated.
Effect of quality of radiographs taken during root canal treatment on technical quality of root canal fillings and endodontic outcome.
Restor Dent Endod
January 2025
School of Dentistry, IMU University, Kuala Lumpur, Malaysia.
Objectives: This study evaluated the number and quality of working length (WL) and master cone (MC) radiographs taken during root canal treatment by dental undergraduates, and their associations with the technical quality of root canal fillings (TQRCF) and endodontic outcomes (EO).
Methods: A retrospective evaluation of radiographs from 303 root canal-treated teeth in 231 patients was conducted, with 72 patients attending recall visits to assess EO. The chi-square and one-way analysis of variance tests were performed.
What are the Pterygomaxillary Fracture Patterns in Cleft Orthognathic Surgery?
J Oral Maxillofac Surg
December 2024
Professor, Faculty of Dentistry of Bauru, Department of Surgery, Stomatology, Pathology and Radiology, University of São Paulo, Bauru, São Paulo, Brazil; Professor, Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo (HRAC/USP), Bauru, São Paulo, Brazil.
Background: Patients with cleft lip and palate (CLP) often exhibit unique anatomical variations in the pterygoid plates, which can influence fracture patterns at the pterygomaxillary junction (PMJ) during Le Fort I osteotomy. These differences may increase the risk of unfavorable fractures, complicating surgery and recovery.
Purpose: The study purpose was to measure the association between the osteotomy level with the PMJ fracture patterns in CLP patients undergoing Le Fort I osteotomy.
Article Synopsis
- The text discusses the importance of forecasting future health issues in the USA for effective planning and public awareness regarding disease and injury burdens.
- It describes the methodology for predicting life expectancy, cause-specific mortality, and disability-adjusted life-years (DALYs) from 2022 to 2050 using the Global Burden of Diseases framework.
- The forecasting includes various scenarios to assess the potential impacts of health risks and improvements across the country, focusing on demographic trends and health-related risk factors.
Egg mass classification considering the hatching process of Pomacea canaliculata.
Sci Rep
November 2024
Faculty of Engineering, Information and Systems, University of Tsukuba, Tsukuba, 3058577, Japan.
Pomacea canaliculata feeds on seedlings that have been planted less than three weeks ago. This study aimed to construct an imaging system that can eliminate the egg masses of P. canaliculata before they hatch and multiply.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!