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Crown Margin Gap Unit

Convert an explicitly measured crown-margin gap between micrometers and millimeters without assessing fit.

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Description

Convert a supplied crown-margin gap between micrometres and millimetres.

Prosthetic records use explicit material lots, shade systems, reference lengths, pressure and gap units. A dimensional scale change differs from acceptable fit, while a connection label differs from verified compatibility. Measurements and component assertions need the original device, material specification and qualified clinical interpretation.

Convert a supplied crown-margin gap between micrometres and millimetres.

When to use this tool

Use Crown Margin Gap Unit when you already have gap, inputUnit and need to convert a supplied crown-margin gap between micrometres and millimetres.

How to use the tool and how it works

  1. Enter gap, inputUnit. 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 micrometers, millimeters. Use the output convention below.

Require gap>=0 and inputUnit um or mm; use 1000 µm=1 mm.1

Input fieldMeaning and unitsAccepted input
gapGapRequired. Finite number; minimum 0.
inputUnitInput UnitRequired. Text; one of "um", "mm"; maximum UTF-16 length 8192.
Output fieldInterpretationReturned shape
micrometersMicrometersRequired. Finite number.
millimetersMillimetersRequired. Finite number.
json
{
  "input": {
    "gap": 80,
    "inputUnit": "um"
  },
  "output": {
    "micrometers": 80,
    "millimeters": 0.08
  }
}

Limitations and assumptions

  • The tool does not measure a margin, assess fit or choose a clinically acceptable gap.
  • 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

Check actual component specifications, material lots, calibrated measurements and fit records. Use a full dimensional or mechanical assessment for a prosthesis; unit conversions, shade labels and one-point scale differences preserve narrower facts.

References

  1. Calculation and input contract: prosthodontics/crown-margin-gap-unit — tool.io

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