Table 1: Cast-Radiograph Evaluation (CRE) methodology.
| Category | Local and assessment | Measurement or visualization | Point subtracted |
|---|---|---|---|
| Alignment | Anterior and posterior teeth rotation, with different references to assess proper alignment: » Upper anterior teeth: incisal edges and lingual surfaces; » Lower anterior teeth: incisal edges and labial surfaces; » Upper posterior teeth: mesiodistal central groove; » Lower posterior teeth: buccal cusps. |
< 0.5 mm 0.5 to 1 mm > 1 mm |
0 1 2 |
| Marginal ridge leveling | Posterior teeth, in each interproximal contact, except on the distal ridge of lower first premolar |
< 0,5 mm 0,5 to 1 mm > 1 mm |
0 1 2 |
| Buccolingual inclination | Posterior teeth, except measurements of lower premolars |
< 1 mm 1 to 2 mm > 2 mm |
0 1 2 |
| Occlusal relationship |
Anteroposterior relationship involving canine to second molar. Upper buccal cusps should occlude within 1 mm of the lower interproximal embrasures. |
< 1 mm 1 to 2 mm > 2 mm |
0 1 2 |
| Occlusal contacts |
Posterior teeth, considering the functioning upper cusps and the correspondent lower functioning cusps and pits. | Contacting Non-contacting < 1 mm Non-contacting > 1 mm |
0 1 2 |
| Overjet | Anterior and posterior teeth. Measurements obtained from each upper tooth. Anterior teeth should be in contact. Lower buccal cusp of posterior tooth should occlude with the upper central groove. |
Anterior contact: 0 mm Anterior: Non-contacting < 1 mm Anterior: Non-contacting > 1 mm Posterior coordination: 0 mm Posterior: incoordination < 1 mm Posterior incoordination > 1 mm |
0 1 2 0 1 2 |
| Interproximal contacts | Effective or spaced interproximal contact evaluated from occlusal perspective. | < 0.5 mm 0.5 to 1 mm > 1 mm |
0 1 2 |
| Root parallelism |
Evaluated from panoramic radiograph. Disregard significant root dilaceration. |
Root parallelism Root non-parallel Roots in contact |
0 1 2 |