Final answer:
A dental charting system that uses the geometric diagram style represents the teeth with alphanumeric codes based on their position and type.
Step-by-step explanation:
In dentistry, a dental charting system that uses the geometric diagram style represents the teeth with alphanumeric codes. Each tooth is assigned a unique code based on its position in the mouth and type. The system commonly used is the FDI tooth numbering system, in which the permanent teeth are numbered from 1 to 32, starting from the upper right third molar to the lower right third molar. The primary teeth are numbered from A to T. For example, the code for the upper right central incisor would be 11, for the lower right canine it would be 43, and so on.