Description
Calculate eligibleArea=totalArea-artifactArea, eligibleMarked=markedArea-markedArtifactOverlap, and share=eligibleMarked/eligibleArea.
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.
Calculate eligibleArea=totalArea-artifactArea, eligibleMarked=markedArea-markedArtifactOverlap, and share=eligibleMarked/eligibleArea.
When to use this tool
Use Prosthodontic Occlusal Film Contact 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 markedArea, totalArea, artifactArea, markedArtifactOverlap. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read eligibleArea, eligibleMarked, share. Use the output convention below.
Calculate eligibleArea=totalArea-artifactArea, eligibleMarked=markedArea-markedArtifactOverlap, and share=eligibleMarked/eligibleArea. Require positive eligible area and feasible nonnegative area and overlap relationships.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| markedArea | Marked Area | Required. Finite number; minimum 0. |
| totalArea | Total Area | Required. Finite number. |
| artifactArea | Artifact Area | Required. Finite number; minimum 0. |
| markedArtifactOverlap | Marked Artifact Overlap | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| eligibleArea | Eligible Area | Required. Finite number. |
| eligibleMarked | Eligible Marked | Required. Finite number. |
| share | Dimensionless fraction using the stated denominator; not a percentage numeral. | Required. Finite number. |
{
"input": {
"markedArea": 30,
"totalArea": 100,
"artifactArea": 10,
"markedArtifactOverlap": 5
},
"output": {
"eligibleArea": 90,
"eligibleMarked": 25,
"share": 0.2777777777777778
}
}Limitations and assumptions
- Overlap is supplied rather than segmented from an image. The marked fraction does not determine contact force, bite quality, occlusal adjustment, or clinical fit.
- 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
- Occlusal Film Contact Threshold Token
Evaluate an explicit bench image-signal threshold rule without selecting a clinical contact criterion.
- 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.