When only part of the tooth has erupted into the mouth, it can create a flap of gum tissue that easily holds food particles and debris and is a hotbed for bacteria. Pericoronitis also can occur around a wisdom tooth that has not erupted at all and is still under the gums.
Define futon: a usually cotton-filled mattress used on the floor or in a frame as a bed, couch, or chair a usually cotton-filled mattress used on the floor or in a frame as a bed, couch, or chairâ¦ See the full definition
In physics and mechanics , a fulcrum is âthe point against which a lever is placed to get purchase or upon which it turns or is supported. â (From the OED). The fulcrum is the support about which a lever pivots . The fulcrum in physics is related to the physics of the lever and the physics of simple machines .