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community dentistry - 3 Questions
After the administration of a local anesthetic (L.A.), the sensations are typically lost in a specific order based on the diameter and myelination of the nerve fibers. The order of loss is generally: Pain and temperature (carried by small, unmyelinated or lightly myelinated fibers) are lost first. Touch and pressure (carried by larger, myelinated fibers) are lost later.
While fear may induce short-term behavior changes, it often results in a negative response and can lead to dental anxiety or avoidance. It is generally not a recommended approach for long-term motivation in dental health education.
The Sumerians, around 3000 BC, are considered the earliest civilization to show evidence of oral hygiene practices, such as using twigs as toothbrushes.