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Tooth Landmark Support Share Tool

Calculate tooth landmark support share from explicit caller-supplied inputs.

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Description

Deduplicate teeth and requiredLandmarks and count their Cartesian pairs once when any matching observed row is true.

Dental model and device records use coordinate frames, image scale, dimensions, force references, and observation schedules. A projection, gap, ratio, or metadata order checks a particular supplied representation. These local calculations do not establish a treatment plan or the clinical suitability of a device.

Deduplicate teeth and requiredLandmarks and count their Cartesian pairs once when any matching observed row is true.

When to use this tool

Use Tooth Landmark Support Share when you need this particular model geometry, device budget, observation share, or record comparison.

How to use the tool and how it works

  1. Enter toothIds, landmarkIds, observed, requiredLandmarks. Keep parallel arrays aligned. 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 requiredPairs, supportedPairs, share, defined. Inspect defined before interpreting the associated values.

Require aligned toothIds, landmarkIds, and observed flags. Deduplicate teeth and requiredLandmarks and count their Cartesian pairs once when any matching observed row is true. Return requiredPairs, supportedPairs, and their share when positive, otherwise zero with defined=false.1

Input fieldMeaning and unitsAccepted input
toothIdsTooth IdsRequired. Array of text; maximum UTF-16 length 8192; maximum items 256.
landmarkIdsLandmark IdsRequired. Array of text; maximum UTF-16 length 8192; maximum items 256.
observedObservedRequired. Array of boolean; maximum items 256.
requiredLandmarksRequired LandmarksRequired. Array of text; maximum UTF-16 length 8192; maximum items 256.
Output fieldInterpretationReturned shape
requiredPairsRequired PairsRequired. Safe integer.
supportedPairsSupported PairsRequired. Safe integer.
shareDimensionless share under the stated denominator; not a percent numeral.Required. Finite number.
definedWhether the associated denominator or quantity is defined; read before using a zero placeholder.Required. Boolean.
json
{
  "input": {
    "toothIds": [
      "t1",
      "t1",
      "t2"
    ],
    "landmarkIds": [
      "a",
      "b",
      "a"
    ],
    "observed": [
      true,
      false,
      true
    ],
    "requiredLandmarks": [
      "a",
      "b"
    ]
  },
  "output": {
    "requiredPairs": 4,
    "supportedPairs": 2,
    "share": 0.5,
    "defined": true
  }
}

Limitations and assumptions

  • The tooth universe is inferred only from toothIds, so wholly absent teeth are not detected. Duplicate observations do not increase support and no landmark coordinates, anatomical validity, or clinical scan adequacy are checked.
  • 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.

Alternative or Complementary methods

Use a validated measurement or device model and appropriate source records for the full task. Check coordinate systems, calibration, geometric assumptions, and observation denominators before interpreting the term.

References

  1. Calculation and input contract: orthodontics/tooth-landmark-support-share — tool.io

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