In a 12-year-old, the mesiobuccal cusp of the maxillary first permanent molar (1.6) occludes mesial to the buccal groove of the mandibular first permanent molar (4.6). What is the Angle molar classification on that side?

  • Correct answer

    Class II

  • Class I

  • Class III

  • It cannot be classified without the canine relationship

This question is one of 15 in AFK practice: Orthodontics, pediatric and geriatric dentistry. Test yourself on all of them.

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Explanations

  • Angle classification is based on the first molars: a maxillary mesiobuccal cusp lying mesial to the mandibular buccal groove means the mandibular molar is distal, which is Class II. In Class III the cusp lies distal to the groove.

    Source: Proffit, Contemporary Orthodontics — oneguy

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