Headphones that go over your ears can also damage your hearing if you use them too long or play music too loudly. They're just not as much of a risk as earbuds are: Having the source of the sound in your ear canal can increase a sound's volume by 6 to 9 decibels â enough to cause some serious problems.
Dental hand instruments. Instruments used for examining the mouth and teeth. Mouth mirrors are used to examine the condition of the teeth and mouth, as well as to retract the tongue and cheeks upon examination. Probesâ There are many probes available but the main types are the straight probe, Briault probe and periodontal probe.
Methods of dental instrument sterilization. There are generally two sterilization methods â physical (for example heat) and chemical. Dental instruments that require heat sterilization (autoclave) procedure. All stainless steel, tungsten carbide, and Teflon-coated dental hand instruments. All burs and bur changers.