Prophy vs SRP Calculator

This calculator determines periodontal stage from Radiographic Bone Loss %, following the real 2017/2018 AAP/EFP World Workshop's radiographic-bone-loss boundaries: 0% loss reads as no periodontitis, under 15% (coronal third) as Stage I, 15-32% as Stage II, and 33% or more as Stage III/IV. Average Pocket Depth does not drive stage directly -- in the real classification it's a complexity factor, not the primary determinant -- but a pocket depth of 5mm or more (a Stage II complexity indicator) or 6mm or more (a Stage III indicator) will still floor the stage at that level even if Radiographic Bone Loss % alone would suggest something milder, since a deep pocket is itself real evidence of complexity the bone-loss percentage might not capture. When Radiographic Bone Loss % is zero, there is no periodontitis to stage, so the recommendation instead follows Bleeding on Probing %: under 10% reads Healthy, 10-30% reads Localized Gingivitis (Prophylaxis, D1110), and over 30% reads Generalized Gingivitis, recommending D4346 (Scaling in Presence of Generalized Moderate or Severe Gingival Inflammation) -- a real CDT code that is distinct from scaling & root planing and is not billed per quadrant. Once a periodontitis stage is reached, D4342 (1-3 teeth per quadrant) covers Stage I's localized recommendation, and D4341 (4 or more teeth per quadrant) covers Stage II and Stage III/IV -- D4341 is itself a per-quadrant code, so a full-mouth recommendation is billed as four separate units of it, not one "full mouth" code.

Quadrants for SRP is floored at 1 whenever any SRP code is recommended, so a recommendation to treat never coexists with zero quadrants to actually treat. Severity Score, shown separately, is an informational complexity tally only -- it is not what selects the recommendation. It adds points for pocket depth, bleeding, bone loss, and a flat 2 points for current Smoking Status, with no interaction terms between any of those factors; smoking cannot, by itself, move a patient with a healthy periodontium into an SRP recommendation, because stage is computed purely from Radiographic Bone Loss % and Average Pocket Depth. This tool borrows real CDT billing codes and stage labels, but is a simplified aid, not the full AAP/EFP classification, which also weighs clinical attachment loss, tooth loss, and additional complexity factors this tool doesn't collect.