Angle Classification (Malocclusion)
Angle classification of malocclusion (Angle 1899): by the mesiobuccal cusp of the upper first molar relative to the buccal groove of the lower first molar.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Molar relationship
- MB cusp mesial to / in front of the groove (distoclusion)
- Maxillary incisor pattern
- Proclined / protruded upper incisors (Division 1)
Result: Angle Class II Division 1 — distoclusion (upper molar forward of the lower) with proclined maxillary incisors.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Reference
- mesiobuccal cusp of the upper first molar vs the buccal groove of the lower first molar.
- Classes
- I in the groove; II mesial to it (Div 1 proclined / Div 2 retroclined incisors); III distal to it. II = distoclusion, III = mesioclusion.
What you enter
- Molar relationship
- Maxillary incisor pattern (Class II only)
How this is calculated
Angle EH. Classification of malocclusion. Dental Cosmos. 1899;41:248-264,350-357. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.