Open AccessPhysical, chemical, mechanical, and micromorphological characterization of dental needles
Author(s) -
Marco Antônio de Oliveira Monteiro,
Alberto Nogueira da Gama Antunes,
Roberta Tarkany Basting
Publication year - 2021
Publication title -
journal of dental anesthesia and pain medicine
Language(s) - English
Resource type - Journals
ISSN - 2383-9309
DOI - 10.17245/jdapm.2021.21.2.139
Subject(s) - bevel , flexural strength , bending , composite material , mechanical resistance , deflection (physics) , scanning electron microscope , universal testing machine , materials science , fracture (geology) , medicine , structural engineering , physics , optics , engineering , ultimate tensile strength
In anesthetic techniques, touching bones can cause needle bending. Theoretically, a needle should support such deflection without fracturing. However, it is possible that a needle may fracture depending on the quality and type of needle used. This study evaluated the physical, chemical, and micromorphological characteristics of long and short dental anesthetic needles, as well as the mechanical properties of flexural load and bending resistance when needles are subjected to different bending angles.