The numbering runs from the center of the mouth to the back. In the upper right section of the mouth, for example, tooth number 1 is the incisor (flat, front tooth) just to the right of the center of the mouth. The numbers sit inside an L-shaped symbol used to identify the quadrant. The L is right side up for the teeth in the upper right.
United States military deployments. The military of the United States is deployed in more than 150 countries around the world, with over 300,000 of its active-duty personnel serving outside the United States and its territories. US personnel are seeing active combat in Afghanistan.
How many foreign troops are in Afghanistan now? Nato ended its combat mission in Afghanistan in December 2014, leaving a 13,000-strong residual force used for training and counter-terrorism operations, including 9,800 US troops. The US originally planned to withdraw all but a small embassy-based force of 1,000 troops by the end of 2016.