Which details about canal preparation must be documented in the endo record?

• A. The shade of the tooth
• B. The patient height
• C. The lengths, sizes, and tapers of prepared canals
• D. The operator's favorite file brand

Answer: (C)

The main idea is that endodontic records should capture objective details that define what was done during canal preparation. The lengths, sizes, and tapers of prepared canals are essential because they document how deeply and broadly the canals were shaped, which directly affects cleaning effectiveness, final obturation, and future retreatment planning. Working length tells you how far toward the apex the preparation reached; canal size indicates the diameter achieved with the shaping files, and taper shows how rapidly the canal was widened along its length. Together, these measurements create a clear, reproducible record of the canal geometry achieved during treatment, guiding obturation and ensuring continuity of care.

The shade of the tooth, while relevant to esthetics, does not reflect the preparation process and is not required for documenting canal shaping. The patient’s height has no bearing on endodontic technique or outcomes and thus isn’t part of the procedure record. The operator’s preferred file brand is not a clinical detail necessary for treatment documentation, since it doesn’t impact the procedure’s technical outcome or future care. Focus on the objective canal dimensions and lengths to ensure the record communicates exactly what was done in the root canal preparation.