A This portion of the gauge is in 1 mm increments and is used to measure discrepancies in alignment, overjet, occlusal contact, interproximal contact, and occlusal relationships. The width of the gauge is 0.5 mm.

 

B This portion of the gauge has steps measuring 1 mm in height and is used to determine discrepancies in mandibular posterior buccolingual inclination.

 

C This portion of the gauge has steps measuring 1 mm in height and is used to determine discrepancies in marginal ridges.

 

D This portion of the gauge has steps measuring 1 mm in height and is used to determine discrepancies in maxillary posterior buccolingual inclination.

 

NOTE: Third molars are not scored unless they substitute for the second molars.

 

For your convenience, the ABO has available for purchase a Calibration Kit to assist you in making a qualitative assessment of the records that you plan to use for the clinical exam. This kit contains three sets of pre-measured casts with scoring keys, the grading system instructional manual, and a measuring gauge.

 

Previous Page

Model Grading System - Table of Contents

Next Page

20