| 释义 |
tooth numbering system international standards organization tooth numbering system international standards organizationAn internationally recognized system of tooth numbering in which teeth in each quadrant are identified by numbers 1 through 8. A second number indicates the quadrant. Quadrant 1 is the maxillary right quadrant; quadrant 2 is the maxillary left quadrant; quadrant 3 is the mandibular left quadrant; and quadrant 4 is the mandibular right quadrant. Tooth number 13, for example, indicates the maxillary right quadrant and the canine tooth. See also: tooth numbering system |