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.
Metal â Metal dental crowns are among the strongest options, although their major disadvantage is their aesthetics. The material used to create these types of dental crowns is a metal alloy. The metal alloy can be a number of materials. PROS-Long lasting and durable. CONS-Metal is clearly visible and not aesthetically pleasing.