D2792: Diagnostic Cast Fabrication for Single Arch

Code Description

D2792 – Fabrication of a diagnostic cast for any single arch (maxillary or mandibular).

Clinical Uses

• Orthodontic treatment planning (model analysis, setup).
• Evaluating denture/prosthesis fit.
• Diagnosing TMJ disorders (mounting on articulator).
• Fabricating custom mouthguards, splints, bleaching trays.
• Studying growth/development (mixed dentition).

Procedure Steps

1. Clean/dry teeth.
2. Select tray; load impression material (alginate, silicone).
3. Seat tray; hold until set.
4. Remove, inspect, disinfect.
5. Pour dental stone/plaster into impression.
6. Separate cast; trim, finish.

Fee Includes

Impression material, tray, stone, lab labor. Additional services (bite registration, mounting) coded separately.