Table 1.
Standard dental unit (SDU) scoring system: Nomenclature of the standardized dental patient record (DPR) codes for dental procedures and their equivalent nomenclature in the American Dental Association (ADA) Current Dental Terminology (CDT)-2018.
| DPR Code—Abbreviations of the Procedure | Equivalent ADA CDT-2018 Code | Nomenclature | SDU Value |
|---|---|---|---|
| Dental examination | D0150 | Comprehensive oral evaluation | 0.25 |
| Scaling | D4910 | Periodontal maintenance | 0.75 |
| Scaling-hygienist | D4355 | Full mouth debridement to enable diagnosis | 0.75 |
| Root planning | D4341 | Periodontal scaling and root planning—≤4 teeth per quadrant | 1.00 |
| Periodontal examination | D0180 | Comprehensive periodontal evaluation | 1.00 |
| Periodontal Treatment plan | D4999 | Unspecified periodontal procedure, by report | 0.5 |
| Occlusal guard | D9940 | Occlusal guard | 2.0 |
| Occlusal examination | D9950 | Occlusion analysis-mounted case | 0.5 |
| Amalgam—one surface | D2140 | Amalgam—one surface | 1.00 |
| Amalgam—two surfaces | D2150 | Amalgam—two surfaces | 1.00 |
| Amalgam—three surfaces | D2160 | Amalgam—three surfaces | 1.00 |
| Amalgam crown | D2161 | Amalgam—four or more surfaces | 1.5 |
| Composite restoration | D2330, D2331 D2332, D2335 | Resin-based composite—one to four surfaces | 1.00 |
| Crown restoration | D2390 | Resin-based composite crown | 1.5 |
| Root canal treatment—one canal (RCT1) | D3310 | Endodontic therapy, anterior tooth | 1.25 |
| RCT 2 canals | D3320 | Endodontic therapy, bicuspid tooth | 2.5 |
| RCT 3 canals | D3330 | Endodontic therapy, molar | 3.75 |
| RCT 4 canals | D3330 | Endodontic therapy, molar | 5.00 |
| RCT 5 canals | D3330 | Endodontic therapy, molar | 6.25 |
| Endodontic therapy, atypical root canal anatomy, one root canal | D3310 | Endodontic therapy, anterior tooth | 1.5 |
| Endodontic therapy, atypical, 2RCT | D3320 | Endodontic therapy, bicuspid tooth | 3.00 |
| Endodontic therapy, atypical, 3RCT | D3330 | Endodontic therapy, molar | 4.5 |
| Endodontic therapy, atypical, 4RCT | D3330 | Endodontic therapy, molar | 6.00 |
| Root canal retreatment (RTR) 1 canal | D3346 | Retreatment anterior | 1.5 |
| RTR 2 canals | D3347 | Retreatment bicuspid | 3.00 |
| RTR 3 canals | D3348 | Retreatment molar | 4.5 |
| RTR 4 canals | D3348 | Retreatment molar | 6.00 |
| RTR 5 canals | D3348 | Retreatment molar | 7.5 |
| Extraction erupted tooth/ exposed root | D7140 | Extraction, erupted tooth/exposed root (elevation and/or forceps removal) | 1.00 |
| Surgical extraction | D7210 | Extraction erupted tooth requiring removal of bone and/or sectioning of tooth, and/or elevation of mucoperiosteal flap | 1.5 |
| Dental implant | D6010 | Surgical placement of implant body | 2.00 |
| Crown | D2740, D2750 D2751, D2791 D2790, D2792 |
Crown—porcelain/ceramic, Crown—porcelain fused to high noble metal Crown—porcelain fused to a predominantly base metal Crown—full cast predominantly base metal, Crown—full cast noble metal |
4.00 |
| Implant-supported crown | D6065 D6066 D6067 |
Implant-supported porcelain/ceramic crown Implant-supported porcelain fused to metal crown Implant-supported metal crown |
4.00 |
| Implant-supported abutment | D6057 | Implant-supported custom fabricated abutment | 1.00 |
| Direct post and core | D2950 | Core buildup, including any pins when required | 1.5 |
| Indirect post and core | D2952 | Post and core, indirectly fabricated | 2.00 |