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Canal Caliper Reference Gap Tool

Compare supplied research caliper coordinates without determining instrument working length.

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Description

Return gap = recordedLength-referenceLength in their shared length unit.

Dental specimen and bench-model measurements need an explicit image scale, coordinate origin and geometric convention. A linear taper, chord ratio or calibrated length describes a supplied model and does not establish anatomy or guide clinical treatment.

Return gap = recordedLength-referenceLength in their shared length unit.

When to use this tool

Use Canal Caliper Reference Gap when checking a supplied research or bench-model dimension.

How to use the tool and how it works

  1. Enter recordedLength, referenceLength. Use the units and conventions below.
  2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
  3. Read gap. Use the output convention below.

Require nonnegative recordedLength and referenceLength. Return gap = recordedLength-referenceLength in their shared length unit.1

Input fieldMeaning and unitsAccepted input
recordedLengthRecorded LengthRequired. Finite number; minimum 0.
referenceLengthReference LengthRequired. Finite number; minimum 0.
Output fieldInterpretationReturned shape
gapSigned difference from the stated reference, using compatible units.Required. Finite number.
json
{
  "input": {
    "recordedLength": 12,
    "referenceLength": 10
  },
  "output": {
    "gap": 2
  }
}

Limitations and assumptions

  • A positive gap means the recorded value is longer. This is a supplied caliper comparison without uncertainty, calibration checks or clinical interpretation.
  • Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
  • Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.

Alternative or Complementary methods

Use verified specimen and instrument methods, full geometry and professional clinical assessment when the question extends beyond bench arithmetic.

References

  1. Calculation and input contract: endodontics/canal-caliper-reference-gap — tool.io

Similar or alternative tools

  • Canal Image Reference Length

    measuredLength = measuredPixels*suppliedRulerLength/rulerPixels; referencedLength adds suppliedOriginOffset in the same physical length unit.

  • Canal Model Conicity Length Gap

    measuredTaper = (secondDiameter-firstDiameter)/length; taperGap subtracts targetTaper; targetEndDiameter = firstDiameter+targetTaper*length.