Aug 12, · The ADA system of tooth numbering depicts the upper and lower teeth in each arch in a clockwise manner. The upper teeth are numbered from from right to left and the lower teeth are numbered from left to right. Therefore, 1,16,17 and 32 would refer to your wisdom teeth and and would be your anterior teeth in the upper and lower jaws . May 12, · Adults In the universal tooth numbering system, tooth number 1 is the patient's upper right third molar, on the right side of the mouth in the upper (maxillary) jaw. Numbering of teeth continues along the upper teeth toward the front and across to the last molar tooth back on the top left side (number 16).