Question:medium
Dental numbering is done by all of the following except
Dental numbering is done by all of the following except
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Three of these are real charting systems; one is a made-up name.
Updated On: Jun 24, 2026
- FDI two-digit system
- Anatomic and diagrammatic charting
- Palmer notation
- Harder acrogenic method
Show Solution
The Correct Option is D
Solution and Explanation
This is a "pick the odd one out" question, so the strategy is to validate each option as a real charting method and flag the one that does not exist.
Start with the established systems. The FDI two-digit notation is the world standard recommended by the Federation Dentaire Internationale; the first digit names the quadrant and the second names the tooth. Anatomic and diagrammatic charting is the practical method dentists use to draw the teeth on a chart and record findings. Palmer notation, originally the Zsigmondy system, uses a bracket symbol for the quadrant together with numbers one to eight for permanent teeth and letters for deciduous teeth.
That leaves the Harder acrogenic method, which is not described in any dental or forensic textbook. It is an invented term placed in the question to act as the exception.
It is also useful to recall the Universal numbering system, which sequentially numbers permanent teeth from 1 to 32, as a fourth legitimate method, none of which is the answer.
So the non-existent, and therefore correct, choice is the Harder acrogenic method.
\[\boxed{\text{Harder acrogenic method}}\]
Start with the established systems. The FDI two-digit notation is the world standard recommended by the Federation Dentaire Internationale; the first digit names the quadrant and the second names the tooth. Anatomic and diagrammatic charting is the practical method dentists use to draw the teeth on a chart and record findings. Palmer notation, originally the Zsigmondy system, uses a bracket symbol for the quadrant together with numbers one to eight for permanent teeth and letters for deciduous teeth.
That leaves the Harder acrogenic method, which is not described in any dental or forensic textbook. It is an invented term placed in the question to act as the exception.
It is also useful to recall the Universal numbering system, which sequentially numbers permanent teeth from 1 to 32, as a fourth legitimate method, none of which is the answer.
So the non-existent, and therefore correct, choice is the Harder acrogenic method.
\[\boxed{\text{Harder acrogenic method}}\]
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