Description
Return share=contactArea/regionArea with positive region area and contact area within zero and region area.
Dental laboratory and prosthetic research records distinguish measured dimensions, reference targets, material quantities, and evidence flags. Ratios and residuals depend on those measurement conventions. An idealized bench term or metadata match is separate from fabrication quality and clinical fit or suitability.
Return share=contactArea/regionArea with positive region area and contact area within zero and region area.
When to use this tool
Use Contact Region Area Share when you need the stated laboratory, bench, geometry, or device-record term from already supplied measurements or annotations.
How to use the tool and how it works
- Enter contactArea, regionArea. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read share. Use the output convention below.
Return share=contactArea/regionArea with positive region area and contact area within zero and region area.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| contactArea | Contact Area | Required. Finite number; minimum 0. |
| regionArea | Region Area | Required. Finite number; strictly above 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| share | Dimensionless fraction using the stated denominator; not a percentage numeral. | Required. Finite number. |
{
"input": {
"contactArea": 2,
"regionArea": 10
},
"output": {
"share": 0.2
}
}Limitations and assumptions
- The areas must use one measurement basis. This supplied ratio does not infer contact from a scan, measure bite force, assess occlusion, or determine a clinically acceptable area.
- The field tables state structural bounds; the mechanics also specify cross-field constraints. Malformed inputs and unsupported domains cause errors. A successful false flag, empty branch value, or zero placeholder has the meaning stated above and is distinct from an input error.
- 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. Signed zero is exported as zero.
Alternative or Complementary methods
Use calibrated measurements and an appropriate complete geometric, material, or laboratory method when the task requires more than one bench term. Clinical suitability requires a separate professional assessment.
References
Similar or alternative tools
- Contact Mask Support Share
Sum nonnegative cellAreas under contactMask for contactArea and under both contactMask and sourceValid for supportedContactArea, then return their difference as unsupportedContactArea.
- Occlusal Film Contact Threshold Token
Evaluate an explicit bench image-signal threshold rule without selecting a clinical contact criterion.